Let them eat meat? A solution or or a problem for a sustainable healthy future?ILRI
Presented by Lawrence Haddad (Global Alliance for Improved Nutrition) at the International Tropical Agriculture Conference, Brisbane, Australia, 11−13 November 2019
Presented by Shirley Tarawali, Dolapo Enahoro and Catherine Pfeifer (ILRI) at the Expert panel: Food of Animal Origin 2030: Solutions to Consumption Driven Challenges, Global Forum for Food and Agriculture 2018, Berlin, Germany
1) The Tropical Poultry Genetic Solutions (TPGS) project aims to characterize local chicken ecotypes, develop improved breeding approaches in partnership with other organizations, and test dissemination mechanisms to deliver more productive and adapted poultry breeds to smallholders.
2) TPGS is currently testing chicken lines and crosses from various breeds on farms in Ghana, Kenya, and Zimbabwe, and measuring differences in body weight compared to local chickens.
3) Ongoing indigenous chicken breeding programs in Kenya, Ethiopia, and Tanzania are employing BLUP to select for increased body weight, egg number, and survival using local ecotypes identified as priorities in each country.
Environmental footprint of African livestock systems- case studies in KenyaILRI
Presented by Phyllis Ndung’u at the Tropentag 2021―Towards shifting paradigms in agriculture for a healthy and sustainable future, 15-17 September 2021
This document summarizes research on animal fattening practices and opportunities for improvement. It discusses how fattening operations have grown in places like Ethiopia and Kenya. Research from Niger and Mali shows the profitability of fattening sheep and cattle using different feed mixes. Locally available feeds like cowpea, moringa, and others show potential. Price differentials based on animal conformation indicate opportunities for value addition through fattening. Further research on least cost rations and introduction of suitable fodder crops could help smallholders benefit from animal fattening. Near infrared spectroscopy training and understanding long-term land use trends may also support improved practices.
Application of nuclear and genomic technologies for improving livestock produ...ILRI
Presented by Raphael Mrode at the IAEA International Symposium on Sustainable Animal Production and Health—Current Status and Way Forward, Vienna, 28 June-2 July 2021
Biosciences research at the International Livestock Research Institute (ILRI)ILRI
This document summarizes a seminar given by Steve Kemp and Vish Nene at the University of Nairobi on biosciences research at the International Livestock Research Institute (ILRI). It discusses how livestock is a major global commodity and demand is growing. It then outlines ILRI's mission to improve food security and reduce poverty through sustainable livestock research. The document provides details on ILRI's strategic objectives, competencies, research teams, resources, facilities including the Biosciences eastern and central Africa hub, and examples of trypanosomiasis and vaccine research.
Importance of livestock and the technological and policy challenges facing th...ILRI
Presented by Michael Blϋmmel, Phil Toye, Okeyo Mwai, Ian Wright, Tom Randolph and Steve Staal at the Global feed and food congress, Sun City, South Africa, 10-12 April 2013
Let them eat meat? A solution or or a problem for a sustainable healthy future?ILRI
Presented by Lawrence Haddad (Global Alliance for Improved Nutrition) at the International Tropical Agriculture Conference, Brisbane, Australia, 11−13 November 2019
Presented by Shirley Tarawali, Dolapo Enahoro and Catherine Pfeifer (ILRI) at the Expert panel: Food of Animal Origin 2030: Solutions to Consumption Driven Challenges, Global Forum for Food and Agriculture 2018, Berlin, Germany
1) The Tropical Poultry Genetic Solutions (TPGS) project aims to characterize local chicken ecotypes, develop improved breeding approaches in partnership with other organizations, and test dissemination mechanisms to deliver more productive and adapted poultry breeds to smallholders.
2) TPGS is currently testing chicken lines and crosses from various breeds on farms in Ghana, Kenya, and Zimbabwe, and measuring differences in body weight compared to local chickens.
3) Ongoing indigenous chicken breeding programs in Kenya, Ethiopia, and Tanzania are employing BLUP to select for increased body weight, egg number, and survival using local ecotypes identified as priorities in each country.
Environmental footprint of African livestock systems- case studies in KenyaILRI
Presented by Phyllis Ndung’u at the Tropentag 2021―Towards shifting paradigms in agriculture for a healthy and sustainable future, 15-17 September 2021
This document summarizes research on animal fattening practices and opportunities for improvement. It discusses how fattening operations have grown in places like Ethiopia and Kenya. Research from Niger and Mali shows the profitability of fattening sheep and cattle using different feed mixes. Locally available feeds like cowpea, moringa, and others show potential. Price differentials based on animal conformation indicate opportunities for value addition through fattening. Further research on least cost rations and introduction of suitable fodder crops could help smallholders benefit from animal fattening. Near infrared spectroscopy training and understanding long-term land use trends may also support improved practices.
Application of nuclear and genomic technologies for improving livestock produ...ILRI
Presented by Raphael Mrode at the IAEA International Symposium on Sustainable Animal Production and Health—Current Status and Way Forward, Vienna, 28 June-2 July 2021
Biosciences research at the International Livestock Research Institute (ILRI)ILRI
This document summarizes a seminar given by Steve Kemp and Vish Nene at the University of Nairobi on biosciences research at the International Livestock Research Institute (ILRI). It discusses how livestock is a major global commodity and demand is growing. It then outlines ILRI's mission to improve food security and reduce poverty through sustainable livestock research. The document provides details on ILRI's strategic objectives, competencies, research teams, resources, facilities including the Biosciences eastern and central Africa hub, and examples of trypanosomiasis and vaccine research.
Importance of livestock and the technological and policy challenges facing th...ILRI
Presented by Michael Blϋmmel, Phil Toye, Okeyo Mwai, Ian Wright, Tom Randolph and Steve Staal at the Global feed and food congress, Sun City, South Africa, 10-12 April 2013
The document discusses how integrating trees and agroforestry with livestock production through grazing can improve animal welfare and livelihoods in Ethiopia. It finds that districts with better tree access had higher incomes, fewer skinny cattle, and less hair loss, indicating better animal welfare. While agroforestry benefits welfare and food security, barriers include skills, resources, investment costs, and connecting to markets. The document calls for capacity building, veterinary support, and education resources to further support animal welfare through agroforestry.
Animal health and greenhouse gas emissions intensity networkILRI
Presented by Timothy Robinson at the Global Agenda for Sustainable Livestock, 5th Multi-stakeholder Platform Meeting, Cali, Colombia, 7-10 October 2014
The Livestock Geo-Wiki: Manure management moduleILRI
Presented by Timothy Robinson at the Global Agenda for Sustainable Livestock, 5th Multi-stakeholder Platform Meeting, Cali, Colombia, 7-10 October 2014
ILRI program outline: Feed and Forage Development ILRI
This document outlines the ILRI Feed and Forage Development program. The program aims to reduce feed costs and improve feeds, forages, and feeding strategies through research. Key areas of research include feed resources, private sector capabilities, and feed supply and demand scenarios. The program structure includes teams on feeds and feeding strategies, forage diversity, and genetic variability. The research contributes to various CRPs and impacts pathways involve improved access to forage genetic resources and training. Exciting new technologies being explored include ammonia fiber expansion to increase digestibility of crop residues and studying genetic diversity of Napier grass.
Presented by Delia Grace, Johanna Lindahl, Hung Nguyen-Viet and Manish Kakkar at the World Veterinary Association (WVA)/World Medical Association (WMA) global conference on One Health, Madrid, Spain, 21-22 May 2015.
Accelerating livestock research into use: Multi-stakeholder value propositionsILRI
Presented by Fritz Schneider, GASL, at the CGIAR Livestock CRP and GASL joint side event on national partnerships for sustainable livestock systems at the 7th All-Africa Conference on Animal Agriculture, Accra, Ghana, 30 July 2019
Assessment of economic impact of priority animal disease (PPR, HS and Brucell...ILRI
The document summarizes a midterm review meeting of collaborative projects between ICAR-ILRI on the economic impact of priority animal diseases (PPR, HS and Brucellosis) in India. It provides an overview of project activities completed in 2021 including a household survey assessing PPR impact in 3 states. Key findings from the survey in Andhra Pradesh and Karnataka are presented including farmer characteristics, disease incidence and losses estimated per farm and animal. PPR vaccination levels in the 2 states are also reported. Survey results from 2 districts in Uttar Pradesh on farmer characteristics, disease incidence and mortality losses are then summarized.
This document discusses three proposed projects related to dairy cattle genetics in East Africa:
1. Studies on the adaptation of East African dairy cattle breeds to varying nutritional levels, focusing on milk production under different feeding conditions.
2. Developing genomic tools for genetic improvement programs, including determining if reduced SNP assays can estimate breed composition and parentage across populations, and if low-density chips can be imputed to high density.
3. Creating a "suitability index" using reciprocal recurrent genomic selection to screen global Holstein populations for traits suitable for use in East African crossbreds.
Participatory evaluation of cattle fattening innovations of smallholder farm...ILRI
Poster prepared by Azage Tegegne, Yoseph Mekashaand Tesfaye Dubale for the Tropentag 2016 Conference on Solidarity in a Competing World—Fair Use of Resources, Vienna, Austria, 19–21 September 2016
http://www.fao.org/about/meetings/afns/en/
Presentation from Jean-François Soussana, United Nations Environment Programme (UNEP) on integrated crop-livestock agroecological systems. The presentation was prepared and delivered in occasion of the International Symposium on Agroecology for Food Security and Nutrition, held at FAO in Rome on 18-19 September 2014.
Farmers’ uptake of improved feed practices and reasons for adoption/ non adop...ILRI
Presented by Gregory Ndwandwa Sikumba at the CLEANED Project East Africa Stakeholder Consultation on Dairy and Environment Nairobi, Kenya, 18 September 2013
The sustainable use of animal genetics in developing countriesILRI
The document summarizes a presentation about the sustainable use of animal genetics in developing countries. It notes that demand for livestock products is growing rapidly in Southeast Asia but that lack of private incentives threatens indigenous animal genetic resources. It suggests that ex-situ conservation is one option but in-situ conservation could be facilitated by new market-driven models that create demand for traits in local breeds and by exciting new genomic tools that can increase local breeds' adaptability and productivity.
Draft chicken performance testing protocols: Deliberations with country teams ILRI
Presented by Fasil Getachew, Tadelle Dessie, Jasmine Bruno and Jane Pool at the Second ACGG Program Management Team Meeting, Arusha, 27-28 January 2016
Overview of the Dairy Genetics East Africa (DGEA) projectILRI
Presented by John P. Gibson, Ed Rege, Okeyo Mwai, Julie Ojango at the Dairy Genetics East Africa (DGEA) Project 2013 Grand Challenges Meeting, Rio de Janeiro, Brazil, 28-30 October 2013
Row spacing and fertilizer rate on yield and yield components of tef eragrost...Alexander Decker
This study evaluated the effects of row spacing and fertilizer rates on yield and growth of transplanted tef in Ethiopia over two growing seasons. Four row spacings (15cm, 20cm, 25cm, 30cm) and two fertilizer rates (100/100 and 50/100 kg/ha of urea/DAP) were tested. Transplanting tef resulted in 29.2-39.3% higher yields than broadcasting. The highest grain yield of 24.4 Q/ha was obtained with a row spacing of 15cm. Applying 100 kg/ha of urea produced more tillers and higher yields than 50 kg/ha. The optimum row spacing and fertilizer rate for transplanted tef
Cattle keeping and dairy farming are important livelihood activities for rural communities in Senegal. The study found large differences in profits depending on the breed or cross-breed of cattle and livestock management practices. Households keeping crosses of indigenous Zebu cattle with introduced Bos Taurus breeds under good management conditions achieved the highest profits, largely due to higher milk yields. Improving cattle breeds and management can enhance rural livelihoods, food security, and dairy industry policies in Senegal.
Presented by Tesfaye Getachew, Amhara Regional Agricultural Research Institute, at the EIAR/ATA/ICARDA Workshop on small Ruminant Breeding Programs in Ethiopia, Debre Birhan, 17-18 December 2015
Estimate of Genetic Variability Parameters among Groundnut (Arachis hypogaea ...Premier Publishers
Sixteen groundnut genotypes (including local check) were evaluated for quantitative parameters. The crop was sown during 2015 wet season in Ethiopia across four locations. The experiment was laid out in Randomized Complete Block Design with three replications. Twelve quantitative parameters were studied. The analysis of variance revealed the prevalence of significant difference among the genotypes for all studied parameters. Based on mean performance of genotypes Beha gudo, Manipeter and Werer-962 were found to be best for grain yield in kg/ha. High to moderate estimates of genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) were exhibited by all characters except for SHP and NSP indicating that those characters could be used as selection indices for crop improvement. High heritability was observed for 100SW (91.2%), AGBP (90.3%), NBP (90.2%), PH (89.4%), NMP (86.8%), NSPOD (85.7%), HI (83.7%) and KY (79.7%) accompanied by high genetic advance indicating the predominant role of additive gene action and the possibilities of effective selection for the improvement of groundnut genotypes based on these characters. Low broad sense heritability and low genetic advance was observed only for SHP and NSP indicating low genetic potentials for these characters and non-additive gene effect prevails.
Standard heterosis of pipeline maize (Zea mays L.) hybrids for grain yield an...Premier Publishers
The knowledge of gene action and heterosis also helps in identification of superior F1 hybrids in order to use further in future breeding programs. The objective of this study was to estimate the amount of standard heterosis of the pipeline maize hybrids for grain yield and yield related traits. A total of eleven pipeline maize hybrids and two standard checks (BH546 and BH547) were evaluated using randomized complete block design with three replications during the 2015 main cropping season at Northwestern Ethiopia. Mean squares due to genotypes were highly significant (P ≤ 0.01) for most grain yield and yield related traits indicating the existence of genetic variation among the evaluated genotypes. The standard heterosis ranged from -38.72 to 33.65%and the highest heterosis was recorded for CML395/CML202//CML464 cross. The observed highest heterosis for grain yield and related traits indicated the possibility of increasing yield by exploiting heterotic potential of maize genotypes. The information generated by this study could be useful for researchers who need to develop high yielding maize hybrids.
The document discusses how integrating trees and agroforestry with livestock production through grazing can improve animal welfare and livelihoods in Ethiopia. It finds that districts with better tree access had higher incomes, fewer skinny cattle, and less hair loss, indicating better animal welfare. While agroforestry benefits welfare and food security, barriers include skills, resources, investment costs, and connecting to markets. The document calls for capacity building, veterinary support, and education resources to further support animal welfare through agroforestry.
Animal health and greenhouse gas emissions intensity networkILRI
Presented by Timothy Robinson at the Global Agenda for Sustainable Livestock, 5th Multi-stakeholder Platform Meeting, Cali, Colombia, 7-10 October 2014
The Livestock Geo-Wiki: Manure management moduleILRI
Presented by Timothy Robinson at the Global Agenda for Sustainable Livestock, 5th Multi-stakeholder Platform Meeting, Cali, Colombia, 7-10 October 2014
ILRI program outline: Feed and Forage Development ILRI
This document outlines the ILRI Feed and Forage Development program. The program aims to reduce feed costs and improve feeds, forages, and feeding strategies through research. Key areas of research include feed resources, private sector capabilities, and feed supply and demand scenarios. The program structure includes teams on feeds and feeding strategies, forage diversity, and genetic variability. The research contributes to various CRPs and impacts pathways involve improved access to forage genetic resources and training. Exciting new technologies being explored include ammonia fiber expansion to increase digestibility of crop residues and studying genetic diversity of Napier grass.
Presented by Delia Grace, Johanna Lindahl, Hung Nguyen-Viet and Manish Kakkar at the World Veterinary Association (WVA)/World Medical Association (WMA) global conference on One Health, Madrid, Spain, 21-22 May 2015.
Accelerating livestock research into use: Multi-stakeholder value propositionsILRI
Presented by Fritz Schneider, GASL, at the CGIAR Livestock CRP and GASL joint side event on national partnerships for sustainable livestock systems at the 7th All-Africa Conference on Animal Agriculture, Accra, Ghana, 30 July 2019
Assessment of economic impact of priority animal disease (PPR, HS and Brucell...ILRI
The document summarizes a midterm review meeting of collaborative projects between ICAR-ILRI on the economic impact of priority animal diseases (PPR, HS and Brucellosis) in India. It provides an overview of project activities completed in 2021 including a household survey assessing PPR impact in 3 states. Key findings from the survey in Andhra Pradesh and Karnataka are presented including farmer characteristics, disease incidence and losses estimated per farm and animal. PPR vaccination levels in the 2 states are also reported. Survey results from 2 districts in Uttar Pradesh on farmer characteristics, disease incidence and mortality losses are then summarized.
This document discusses three proposed projects related to dairy cattle genetics in East Africa:
1. Studies on the adaptation of East African dairy cattle breeds to varying nutritional levels, focusing on milk production under different feeding conditions.
2. Developing genomic tools for genetic improvement programs, including determining if reduced SNP assays can estimate breed composition and parentage across populations, and if low-density chips can be imputed to high density.
3. Creating a "suitability index" using reciprocal recurrent genomic selection to screen global Holstein populations for traits suitable for use in East African crossbreds.
Participatory evaluation of cattle fattening innovations of smallholder farm...ILRI
Poster prepared by Azage Tegegne, Yoseph Mekashaand Tesfaye Dubale for the Tropentag 2016 Conference on Solidarity in a Competing World—Fair Use of Resources, Vienna, Austria, 19–21 September 2016
http://www.fao.org/about/meetings/afns/en/
Presentation from Jean-François Soussana, United Nations Environment Programme (UNEP) on integrated crop-livestock agroecological systems. The presentation was prepared and delivered in occasion of the International Symposium on Agroecology for Food Security and Nutrition, held at FAO in Rome on 18-19 September 2014.
Farmers’ uptake of improved feed practices and reasons for adoption/ non adop...ILRI
Presented by Gregory Ndwandwa Sikumba at the CLEANED Project East Africa Stakeholder Consultation on Dairy and Environment Nairobi, Kenya, 18 September 2013
The sustainable use of animal genetics in developing countriesILRI
The document summarizes a presentation about the sustainable use of animal genetics in developing countries. It notes that demand for livestock products is growing rapidly in Southeast Asia but that lack of private incentives threatens indigenous animal genetic resources. It suggests that ex-situ conservation is one option but in-situ conservation could be facilitated by new market-driven models that create demand for traits in local breeds and by exciting new genomic tools that can increase local breeds' adaptability and productivity.
Draft chicken performance testing protocols: Deliberations with country teams ILRI
Presented by Fasil Getachew, Tadelle Dessie, Jasmine Bruno and Jane Pool at the Second ACGG Program Management Team Meeting, Arusha, 27-28 January 2016
Overview of the Dairy Genetics East Africa (DGEA) projectILRI
Presented by John P. Gibson, Ed Rege, Okeyo Mwai, Julie Ojango at the Dairy Genetics East Africa (DGEA) Project 2013 Grand Challenges Meeting, Rio de Janeiro, Brazil, 28-30 October 2013
Row spacing and fertilizer rate on yield and yield components of tef eragrost...Alexander Decker
This study evaluated the effects of row spacing and fertilizer rates on yield and growth of transplanted tef in Ethiopia over two growing seasons. Four row spacings (15cm, 20cm, 25cm, 30cm) and two fertilizer rates (100/100 and 50/100 kg/ha of urea/DAP) were tested. Transplanting tef resulted in 29.2-39.3% higher yields than broadcasting. The highest grain yield of 24.4 Q/ha was obtained with a row spacing of 15cm. Applying 100 kg/ha of urea produced more tillers and higher yields than 50 kg/ha. The optimum row spacing and fertilizer rate for transplanted tef
Cattle keeping and dairy farming are important livelihood activities for rural communities in Senegal. The study found large differences in profits depending on the breed or cross-breed of cattle and livestock management practices. Households keeping crosses of indigenous Zebu cattle with introduced Bos Taurus breeds under good management conditions achieved the highest profits, largely due to higher milk yields. Improving cattle breeds and management can enhance rural livelihoods, food security, and dairy industry policies in Senegal.
Presented by Tesfaye Getachew, Amhara Regional Agricultural Research Institute, at the EIAR/ATA/ICARDA Workshop on small Ruminant Breeding Programs in Ethiopia, Debre Birhan, 17-18 December 2015
Estimate of Genetic Variability Parameters among Groundnut (Arachis hypogaea ...Premier Publishers
Sixteen groundnut genotypes (including local check) were evaluated for quantitative parameters. The crop was sown during 2015 wet season in Ethiopia across four locations. The experiment was laid out in Randomized Complete Block Design with three replications. Twelve quantitative parameters were studied. The analysis of variance revealed the prevalence of significant difference among the genotypes for all studied parameters. Based on mean performance of genotypes Beha gudo, Manipeter and Werer-962 were found to be best for grain yield in kg/ha. High to moderate estimates of genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) were exhibited by all characters except for SHP and NSP indicating that those characters could be used as selection indices for crop improvement. High heritability was observed for 100SW (91.2%), AGBP (90.3%), NBP (90.2%), PH (89.4%), NMP (86.8%), NSPOD (85.7%), HI (83.7%) and KY (79.7%) accompanied by high genetic advance indicating the predominant role of additive gene action and the possibilities of effective selection for the improvement of groundnut genotypes based on these characters. Low broad sense heritability and low genetic advance was observed only for SHP and NSP indicating low genetic potentials for these characters and non-additive gene effect prevails.
Standard heterosis of pipeline maize (Zea mays L.) hybrids for grain yield an...Premier Publishers
The knowledge of gene action and heterosis also helps in identification of superior F1 hybrids in order to use further in future breeding programs. The objective of this study was to estimate the amount of standard heterosis of the pipeline maize hybrids for grain yield and yield related traits. A total of eleven pipeline maize hybrids and two standard checks (BH546 and BH547) were evaluated using randomized complete block design with three replications during the 2015 main cropping season at Northwestern Ethiopia. Mean squares due to genotypes were highly significant (P ≤ 0.01) for most grain yield and yield related traits indicating the existence of genetic variation among the evaluated genotypes. The standard heterosis ranged from -38.72 to 33.65%and the highest heterosis was recorded for CML395/CML202//CML464 cross. The observed highest heterosis for grain yield and related traits indicated the possibility of increasing yield by exploiting heterotic potential of maize genotypes. The information generated by this study could be useful for researchers who need to develop high yielding maize hybrids.
Genetic Variability, Heritability and Genetic Advance in Potato (Solanum Tube...Premier Publishers
Potato (Solanum tuberosum L.) used as fresh products and commercially processed foods such as French fries and chips.The objective of the experiment was to assess the nature and magnitude of variability in potato genotypes for tuber quality, yield and yield-related traits. Twenty four potato genotypes were evaluated at Holetta Agricultural Research Centre using a randomized complete block design with three replications during the growing season of 2017. The results of the analysis of variance indicated there was highly significant differences among the genotypes for all traits excepted peel content. The phenotypic (PCV) and genotypic (GCV) coefficient of variation ranged between 0.90 to 46.43% and 0.75 to 40.0%. Heritability in the broad sense (H2) and genetic advance as percent of the mean (GAM) ranged from 38.13 to 91.64% and 1.28 to 73.50%. High phenotypic coefficients of variation and genotypic coefficients of variation coupled with high heritability and genetic advance as percent of mean were observed for shoot dry mass weight, average tuber number, average tuber weight, unmarketable tuber yield, small size tuber and large size tubers. Therefore, selection for these characters would be effective for the emerging processing industry and could be selected as parents for future crossing program in Ethiopia.
Title: The System of Tef Intensification (STI): Modifying crop management for greater food security in Ethiopia
Poster by: Tareke Berhe, Ayele G. Ayetenfisu,
Zewdie Gebretsadik, and Norman Uphoff
Date: October 13, 2015
[Poster presented at the 2nd International Conference on Global Food Security at Cornell University.]
TEST CROSS PERFORMANCE AND COMBINING ABILITY OF QUALITY PROTEIN MAIZE (ZEA MA...Premier Publishers
The present study was conducted to assess the performance of test cross hybrids and estimate the combining ability of highland maize inbred lines for grain yield and yield-related traits. 40 crosses generated by crossing twenty lines with two testers and two genetic checks were evaluated using alpha lattice design with two replications at Ambo and Kulumsa agricultural research centers in 2019 main cropping season. Analyses of variances showed significant mean squares due to crosses for all studied traits that indicated genetic variation among the materials. GCA mean square due to lines showed significant differences for all traits. Similarly, GCA mean square due to testers was significant for all traits except anthesis-silking interval, while SCA mean squares were significant only for grain yield and number of ears per plant. Inbred lines viz., L7, L13, L5, L2 and L18 were good general combiners for yield and yield attributing characters. Tester CML159 was high combiner for grain yield than CML144. Among the hybrids, L5 x T1, L18 x T1 and L12 x T1 exhibited high mean values over checks and highest SCA effects for yield and yield attributing traits, thus could be used for further use in the breeding and cultivar development process.
Evaluation of Soya Bean Varieties at Moisture Stress of Eastern Harerghe Zone...CrimsonpublishersMCDA
Soya bean is a multi-purpose crop. The area of production for soybeans is expected to increase due raised demand of domestic processing industries and boosted demand for use in animal feed. This experiment were conducted with the objective of identify superior genotypes in terms of yield, insect pest & disease tolerance/resistance and with desirable agronomic traits for the last two years of (2014 & 2015). Analysis of variance showed that there were significant difference among the varieties in terms of disease reaction, grain yield and yield related attributes. Korme, Ethio-eugoslavia and Didesa provided about 32.67%, 29.11%, 22.55%, yield advantages over the standard check (Clark), respectively. Therefore, the three high yielding varieties (Korme, Ethio-eugoslavia, and Didesa) were selected and recommended for further production at Fedis and similar agro-ecologies.
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Evaluation of Improved Cowpea (Vigna unguiculata L) Varieties for Adaptation ...Premier Publishers
This study was carried out to evaluate and identify adapted improved cowpea (Vigna unguiculata (L.) Walp.) (Fabaceae) varieties in southern tigray lowlands of Ethiopia. A field experiment was conducted during the 2016 and 2017 main cropping seasons using a randomized complete block design with three replications to evaluate three improved cowpea varieties for yield and yield related traits under rain-fed conditions at Mekoni Agricultural Research Center site and Kara Adisheho farmer’s field. Analysis of variance showed that all the traits measured were statistically significant at 5% level of probability except plant height. The earliest days to 90% maturity (79 days) were observed for the variety Kenkety, whereas the longest was recorded by bole variety (89.6 days). Similarly, Kenkety variety filled their seeds in a short period of time (25 days) compared to Assebot and Bole varieties (29; 32 days). The highest pooled mean grain yield was obtained from Kenkety variety (1958 kgha-1), while Assebot and Bole had the lowest yield of 1656 and 1481 kgha-1 respectively. When we see variety × location wise mean, still Kenkety variety outsmarts in both locations over the varieties and Kara Adisheho were suitable for cowpea production with (2128 kgha-1) grain yield. Taken as a whole, Kenkety variety over weights Assebot and Bole varieties especially for the two main traits of earliness and yield performance. Thus, Kenkety was promising variety for demonstration and scaling up activities in the agro ecology.
Dairy Production System in Lowland Areas of Gambella, EthiopiaAI Publications
The objective of this study was to identify and assessing the different types of dairy cattle production systems, management practices, marketing and its constraints that exist in the Itang district. A total of 120 households were selected from four kebeles using simple random selection method after identifying the dairy owner from the community using purposive sampling method. Descriptive statistics, one way ANOVA, chi-square and ranking were analysed using SPSS statistical package. The majority of producers (63.3%) in the pastoral system produced milk for home consumption, while the majority of mixed crop–livestock producers (40.0%) produced milk for selling purpose. In the mixed crop–livestock system, mostly cereal crop based grazing is the major feed resource but these feed resources were managed in a traditional ways. Almost all respondents in the mixed crop-livestock system (96.5%) and pastoral system (100%) did not supplement their lactating cow with additional feeds. More than 400 cattle herds from 2-3 villages graze together between 10 am to 4 pm daily. The majority of households (68.3%) in the mixed crop–livestock system kept their cattle separately in barn, while other 8.3% of the households did the same in pastoral areas. Constraints for dairy development in the area are diseased condition, thieves, lack of veterinary services, lack of credit, feed and feeding and poor extension services. It can be concluded dairy cattle production in the mixed crop-livestock system was economical and based on mixed agriculture (crops plus livestock) with some fishing activity, mining and wild food collection.
- On-farm experiments were conducted in Nigeria to study cassava yield and nutrient uptake under different fertilizer treatments.
- At intermediate harvests of 4 and 8 months after planting, and final harvests of 12-14 months, plant parts were weighed and analyzed for nitrogen, phosphorus, and potassium concentration.
- On average across treatments, locations, and years, 67% of nitrogen, 61% of phosphorus, and 52% of potassium uptake occurred by 4 months after planting. Nutrient uptake and allocation to plant parts over time was similar for fertilized and unfertilized plants. Whole plant nutrient concentration decreased with increasing biomass, with dilution accounting for about 65% of nutrient variation.
Seed Yield Stability and Genotype x Environment Interaction of Common Bean (P...Premier Publishers
This document evaluates 15 common bean lines and one check variety across 5 environments in Ethiopia over 2 years to analyze genotype by environment interaction and identify stable, high-yielding lines. Significant genotype by environment interaction was found, with environments explaining most variation (81.06%) followed by interaction (15.73%) and genotypes (3.21%). Combined analysis of variance and AMMI modeling partitioned the interaction into two significant principal component axes explaining 39.45% and 17.38% of variation. Biplots of the results identified lines KG-71-1, KG-71-23, and KG-71-44 as both high yielding and broadly adapted. However, specific adaptation of lines was not consistent over
Combining ability of inbred lines in quality protein maize (QPM) for varietal...Premier Publishers
Information on the combining ability of elite germplasm is essential to maximize their use for variety development. Sixty-six F1 crosses resulted from diallel crosses of 12 QPM inbred lines and two standard checks BHQP542 and Melkassa6Q were evaluated to determine general (GCA) and specific (SCA) combining ability for yield and yield related traits using alpha-lattice design with two replications during the 2013 cropping season at Mechara. Analysis of variance showed that mean squares due to entries were significant for most traits studied, indicates existence of variability among the materials. Mean squares due to crosses and crosses versus checks were also significant for most studied traits. GCA and SCA mean squares revealed highly significant (p<0.01) differences for grain yield and most yield related traits. Inbred lines P1, P3 and P12 were good general combiners as the lines showed significant and positive GCA effects for grain yield. Among the crosses, P2 x P11 and P6 x P8 manifested positive and significant SCA effects for grain yield, indicating high yielding potential of the cross combinations. In general, this study identified inbred lines and hybrid combinations that had desirable expression of important traits which will be useful for the development of high yielding varieties.
Adaptation Trial of Improved Perennial Grass Varieties/Accessions at the High...Premier Publishers
This study was conducted with an objective of adapting, see the yield, quality and recommend improved perennial grass accessions to the highland of Guji Zone, Ethiopia in a randomized complete block design (RCBD) with three blocks. Accessions were (Phalaris aquatica Sirossa Phalaris aquatica Sirocco, ILCA 14983, ILCA 14984 and variety X (Holeta local). Broadcasting method for Phalaris and 0.5meter between plant and 1meter between row spacing for Napier grass was applied at planting time each plot measuring 4meter x 6meter. Yield parameters were analyzed using statistical analysis software (SAS) and the means of quality parameters were compared with standards. Accordingly, Napier variety X was significant in survival rate, number of shoot, date of first harvest and harvesting frequency at (P<0.05) and highest in crude protein (CP) content. ILCA 14983 were also significant in survival rate and number of shoot and has highest in vitro dry matter digestibility (DOMD). Phalaris aquatica Sirossa was significant in green forage yield and has highest in vitro dry matter digestibility (DOMD). Generally, considering most parameters, Variety X and ILCA 14983 from Napier grass, Phalaris aquatica Sirossa from Phalaris were selected and recommended to the area and has to be evaluated under farmers’ conditions.
This study evaluated the effects of altitude (mid vs. high) and harvesting date (90, 120, 150 days) on the morphological characteristics, yield, and nutritive value of desho grass in Ethiopia. Key findings include:
1) Most morphological characteristics were not significantly affected by altitude except leaf length. Harvesting date significantly impacted number of leaves, leaf-to-stem ratio, and dry matter yield.
2) Both altitude and harvesting date significantly affected crude protein content, yield, and fiber fractions. Calcium was only impacted by harvesting date while phosphorus was only impacted by altitude.
3) Dry matter content and yield were positively correlated with plant height, leaf length, crude protein yield
Genetic Variability, Heritability and Genetic Advance of Kabuli Chickpea (Cic...Premier Publishers
The present study was carried out to assess the extent of genetic variability among yield and yield related traits in selected kabuli chickpea genotypes. Forty-nine kabuli chickpea genotypes were studied for thirteen traits at Debre Zeit and Akaki using 7x7 simple lattice design in 2018 cropping season. Combined analysis of variance revealed that there was a significant difference among genotypes for all traits studied, indicating the presence of considerable amount of variability among genotypes. High Phenotypic coefficients of variation and moderate genotypic coefficients of variation value were shown for number of pods per plant and number of seeds per plant, respectively, indicating the possibility of genetic improvement in selection of these traits. High broad sense heritability coupled with high genetic advance were obtained for hundred-seed weight (91.88 and 23.81), number of pods per plant (68.07 and 28.13), number of secondary branches (80.92 and 27.80), number of seeds per plant (67.86 and 31.840), grain yield (62.33 and 24.42) and harvest index (75.70 and 28.17), respectively. This indicates that these characters could be improved easily through selection.
Adaptation and Performance Evaluation of Released Napier Grass Varieties unde...PriyankaKilaniya
Five Napier grass varieties were evaluated for agronomic performance and yield at Abobo agricultural research center under rain fed condition in Gambella. The experiment was conducted in randomized complete block design with three replications. Data on agronomic parameters such as plant height, survival rate, leaf to stem ratio, node number per plant, internodes length per plant, tillering performance and dry matter yield were analyzed using general linear model(GLM) procedure of SAS, least significant difference (LSD) at 5% was used for mean separation. Combined analysis indicated that tested varieties varied significantly (p<0.05) for survival rate, plant height, leaf to stem ratio, tillering performance, internodes length per plant and dry matter yield. The highest plant survival rate (86.33%) was recorded for Check followed by varieties 16819(73.60%), 16984(71.92%), and 16791(67.83%) respectively. On the other hand, variety 15743(66.67%) showed the lowest plant survival rate. The mean plant height ranges from 2.09m to 2.49m with an overall mean plant height of 2.31m. The tallest mean plant height (2.49m) was recorded in 15743 while shortest mean plan height (2.09m) was recorded in check. The mean leaf to stem ratio range from 1.71 to 1.28 with the overall mean of 1.52, and The higher leaf to stem ratio value (1.71) were recorded from check, followed by 16984(1.67), 15743(1.59), 16819(1.35) while the lowest value were recorded in 16791(1.28). In a combined analysis the mean dry matter yield range from 20.02 t/ha to 14.05 t/ha with the overall mean of 16.24 t/ha. The higher dry matter yield value (20.02 t/ha) were recorded from 16819, followed by 16791(16.77t/ha) and check (16.12t/ha) respectively. The lowest mean dry matter yield were recorded in 16984(14.05 t/ha) and 15743(14.26t/ha). Generally, Napier grass varieties tested has shown variation for agronomic performance and yield under rain fed condition in Gambella
Adaptation and Performance Evaluation of Released Napier Grass Varieties unde...PriyankaKilaniya
Five Napier grass varieties were evaluated for agronomic performance and yield at Abobo agricultural research center under rain fed condition in Gambella. The experiment was conducted in randomized complete block design with three replications. Data on agronomic parameters such as plant height, survival rate, leaf to stem ratio, node number per plant, internodes length per plant, tillering performance and dry matter yield were analyzed using general linear model(GLM) procedure of SAS, least significant difference (LSD) at 5% was used for mean separation. Combined analysis indicated that tested varieties varied significantly (p<0.05) for survival rate, plant height, leaf to stem ratio, tillering performance, internodes length per plant and dry matter yield. The highest plant survival rate (86.33%) was recorded for Check followed by varieties 16819(73.60%), 16984(71.92%), and 16791(67.83%) respectively. On the other hand, variety 15743(66.67%) showed the lowest plant survival rate. The mean plant height ranges from 2.09m to 2.49m with an overall mean plant height of 2.31m. The tallest mean plant height (2.49m) was recorded in 15743 while shortest mean plan height (2.09m) was recorded in check. The mean leaf to stem ratio range from 1.71 to 1.28 with the overall mean of 1.52, and The higher leaf to stem ratio value (1.71) were recorded from check, followed by 16984(1.67), 15743(1.59), 16819(1.35) while the lowest value were recorded in 16791(1.28). In a combined analysis the mean dry matter yield range from 20.02 t/ha to 14.05 t/ha with the overall mean of 16.24 t/ha. The higher dry matter yield value (20.02 t/ha) were recorded from 16819, followed by 16791(16.77t/ha) and check (16.12t/ha) respectively. The lowest mean dry matter yield were recorded in 16984(14.05 t/ha) and 15743(14.26t/ha). Generally, Napier grass varieties tested has shown variation for agronomic performance and yield under rain fed condition in Gambella
Nine groundnut varieties were tested across six environments in western Oromia, Ethiopia during 2013 main cropping season to evaluate the performance of groundnut varieties for kernel yield and their stability across environments. The varieties were arranged in randomized complete block design (RCBD) with three replications. Pooled analysis of variance for kernel yield showed significant (p≤0.01) differences among the varieties, environments and the genotype by environment interaction (GxE). Additive main effect and multiplicative interactions (AMMI) analysis showed highly significant (p≤0.01) differences for varieties, environments and their interaction on kernel yield. Similarly, the first and the second interaction principal component axis (IPCA1 and IPCA 2) were highly significant (p≤0.01) and explained 41.32 and 7.2% of the total GxE sum of squares, respectively. The environment, genotype and genotype by environment interaction accounted 14.7, 24.1 and 53.3% variations, respectively. This indicated the existence of considerable amounts of deferential response among the varieties to changes in growing environments and the deferential discriminating ability of the test environments. Shulamith and Bulki varieties showed the smallest genotype selection index (GSI) values and had the highest kernel yield and stability showing that these varieties had general adaptation in the tested environments. In the genotype and genotype by environment (GGE) biplot analysis, IPCA1 and IPCA 2 explained 63.5% and 22.4%, respectively, of genotype by environment interaction and made a total of 85.9%. GGE biplot analysis also confirmed Bulki and Shulamith varieties showed better stability and thus ideal varieties recommended for production in the test environments and similar agro-ecologies.
Agricultural sector remains the main source of food and income for most rural communities in
Ethiopia. Being dependent mainly on rainfall, this sector has been affected by climate change. Hence,
employing adaptation strategies within the agricultural sector to climate change is vital to ensure food security
and care for the livelihoods of farmers. Food security and adaptation are among the options to abate the
negative impact of climate changes. This study has analyzed factors influencing the impact of climate change
on food security and adaptation choices by farm households in eastern Ethiopia. The study used data obtained
from 330 household heads randomly and proportionately sampled from two agroecologies in East Hararghe
Zone of Oromiya Region and Dire Dawa Administration, Ethiopia. The study used a univariate profit model
and multinomial logistic regression model to identify factors affecting food security and the choice of
adaptation strategies to climate change. As food security indicator, calorie intake per adult equivalent per day
was considered for adaptation strategies; changing planting date, irrigation water use, soil and water
conservation, and crop variety selection were considered. The result indicated that farmers in the study area are
vulnerable to climate change and the factors determining the choice of climate adaptation options were
determined by sex of household head, family size, education status of household head, Agroecology, distance
to market, cultivated land, credit access, decreasing precipitation and change of temperature. Policy thrust
should focus on linking farmers to fertilizer usage, credit access and social participation as well as in creating
awareness of climate change.
Agricultural sector remains the main source of food and income for most rural communities in Ethiopia. Being dependent mainly on rainfall, this sector has been affected by climate change. Hence, employing adaptation strategies within the agricultural sector to climate change is vital to ensure food security and care for the livelihoods of farmers. Food security and adaptation are among the options to abate the negative impact of climate changes. This study has analyzed factors influencing the impact of climate change on food security and adaptation choices by farm households in eastern Ethiopia. The study used data obtained from 330 household heads randomly and proportionately sampled from two agroecologies in East Hararghe Zone of Oromiya Region and Dire Dawa Administration, Ethiopia. The study used a univariate profit model and multinomial logistic regression model to identify factors affecting food security and the choice of adaptation strategies to climate change. As food security indicator, calorie intake per adult equivalent per day was considered for adaptation strategies; changing planting date, irrigation water use, soil and water conservation, and crop variety selection were considered. The result indicated that farmers in the study area are vulnerable to climate change and the factors determining the choice of climate adaptation options were determined by sex of household head, family size, education status of household head, Agroecology, distance to market, cultivated land, credit access, decreasing precipitation and change of temperature. Policy thrust should focus on linking farmers to fertilizer usage, credit access and social participation as well as in creating awareness of climate change.
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Whole genome sequencing of Napier grass (C. purpureus) accessions from sub-Saharan Africa
1. Better lives through livestock
Whole genome sequencing of Napier grass (C. purpureus)
accessions from sub-Saharan Africa
Abel Teshome (PhD), FLAIR research fellow
Feeds and Forages Program, ILRI
December 2021
Addis Ababa
2. 2
Small-scale dairy
farmer milk yield/day
Diary farms in Ethiopia
2% of the total cattle population
Dairy farms in EU/UK Carcass average/head
Ethiopia:110 kg
UK: 346 kg
Ethiopia boasts the largest livestock inventory in Africa. However, below-par productivity in the
dairy sector forces the country to spend hard currency on importing dairy products from abroad
30L
15L
5L
3. 3
Improving livestock productivity requires:
• Access to feed/ fodder/ grazing resources (improved)
• Access to water
• Breeding stock
• Animal health services
• Access to markets
• Access to finance (incl. insurance)
• Access to knowledge
• Security
Health &
management
Breed
Forage &
feed
5. 5
Why Napier grass?
• High yield per unit area,
• Perennial,
• Can withstand repeated cuttings,
• Energy crop,
• Tolerance to intermittent drought,
• Cut and carry feeding,
• Pests & disease tolerant,
• Salt tolerance,
• Soil and water conservation, &
• Ease of propagation Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Subfamily: Panicoideae
Genus: Cenchrus
Species: C. purpureum
6. 6
• Morphological traits
• Height
• No of tillers per plant
• Leaf hairiness
• Agronomic traits
• Number of plants surviving
• Plant vigour
• Yield traits
• Total fresh weight (g)
• Leaf dry matter (g)
• stem dry matter (g)
• Leaf/Stem ratio
Drought tolerance trial established in Bishoftu, Ethiopia (2017 - 2021)
7. 7
• MINING GENEBANKS: Quantify genome variation in a large and
representative sample of accessions from Africa (500)
• POPULATION ANALYSIS: Identify features that make specific geographic or
genetic subsets particularly well suited for forward genetics, field experiments
and select
• ASSOCIATION MAPPING: GWAS analysis for traits of interest such as water
use efficiency, nutritional quality, anthocyanin content, and dry matter yield etc.
• FUNCTIONAL GENETICS: Conduct comparative genomic analysis through
the use of genes that are known to contribute to the regulation of traits of interest
in Arabidopsis and identify their homologues in C. purpureus.
Research objectives
8. 8
0.0e+00
5.0e+07
1.0e+08
1.5e+08
2.0e+08
A01 B01 A02 B02 A03 B03 A04 B04 A05 B05 A06 B06 A07 B07
Chromosome
Position
chr
A01
B01
A02
B02
A03
B03
A04
B04
A05
B05
A06
B06
A07
B07
More than a million polymorphic and bi-allelic SNPs identified from 350
Napier grass accessions
12. 12
Association mapping for agronomic traits
4 of 17 TIBBS CORTES ET AL.
The Plant Genome
F I G U R E 1 Genome-wide association study methods for improving computational speed and statistical power. Different methods are grouped by
general strategy, and the position of each method shows the general trend of improved statistical power (shown on the x axis) and computational speed
(shown on the y axis). CMLM, compressed mixed linear model; ECMLM, enriched compressed mixed linear model; EMMA, efficient mixed-model
Cortes et al 2021
rMVP (R )
GAPIT (R )
Tassel (GUI)
13. 13
Correlation between six agronomic traits
Traits Acronym
Plant height PH
Leaf length LL
Leaf width LW
Tiller number TN
Total fresh weight TFW
Total dry weight TDW
16. 16
SNPs significantly associated (FarmCPU method) with
plant height (PH) under wet seasons
0 1 2 3 4
0
2
4
6
8
1
0
FarmCPU.PH_wet_sws_sqrt
Expected −log10(p)
O
b
s
e
r
v
e
d
−
l
o
g
1
0
(
p
)
0 1 2 3 4
0
2
4
6
8
10
FarmCPU.PH_wet_MWS_sqrt
Expected −log10(p)
Observed
−
log
10
(
p
)
20. 20
4 of 17 TIBBS CORTES ET AL.
The Plant Genome
F I G U R E 1 Genome-wide association study methods for improving computational speed and statistical power. Different methods are grouped by
general strategy, and the position of each method shows the general trend of improved statistical power (shown on the x axis) and computational speed
(shown on the y axis). CMLM, compressed mixed linear model; ECMLM, enriched compressed mixed linear model; EMMA, efficient mixed-model
association; EMMAX, efficient mixed-model association expedited; FarmCPU, fixed and random model circulating probability unification; FaST-
Cortes et al 2021
rMVP (R )
GAPIT (R )
Tassel (GUI)
Association mapping for nutritional traits
21. 21
Traits Acronym
Acid detergent fibre ADF
Acid detergent lignin ADL
neutral detergent fiber NDF
crude protein CP
Organic matter OM
in vitro organic matter digestibility IVOMD
Metabolizable energy ME
Correlation among seven nutritional traits
24. 24
Upcoming project activities
Repeat SNP calling with more than 450 bam files
• There are additional accessions currently being squenced
Develop molecular markers (SNPs/SSRs) for all Napier grass
genebank accessions
Paternal analysis for progenies
Plan crosses based on the field trial results and genomic tools
developed in this project
• Crosses between hetrotic groups
Comparative genomics
• Correlate identified SNPs with genes in other
forage/food species such as pearl millet
Publish the Linux/R scripts in CGspace
Manuscript development