Selection and Preparation of the Mare and Stallion for BreedingHorse SA
Abdelsalam Talafha
DVM, Diplomate American College of Theriogenologists
School of Animal and Veterinary Sciences
The University of Adelaide, SA 5371
Australia
Selection and Preparation of the Mare and Stallion for BreedingHorse SA
Abdelsalam Talafha
DVM, Diplomate American College of Theriogenologists
School of Animal and Veterinary Sciences
The University of Adelaide, SA 5371
Australia
Presented at the Horse SA Horse Breeding Expo by Dr. Jose Len from the University of Adelaide Equine Health & Performance Centre.
Horse SA conducted three South Australian horse industry promotional events on the 2, 3, 4 June 2016. The events were made possible by members, sponsors and supporters ably assisted by many volunteers.
2 June: Horse health & industry information session at which ‘My Horse Disaster Plan’, http://www.myhorsedisasterplan.org.au/ to which the presentation by Dr. Robin van den Boom on the health of horses affected by the Pinery Fires is uploaded. http://tinyurl.com/hqejfmz Presentations also by Trevor Taylor, Regional Development Australia on a proposed equine multi-use centre and Chris Madigan of NRM Adelaide & Mt. Lofty Ranges.
3 June: Let’s Ride! (or drive, own or more with a horse!) http://www.horsesa.asn.au/lets-ride-or-drive-own-or-just-enjoy-horses/
4 June: Horse Breeding Expo http://www.horsesa.asn.au/horse-breeding/
Please take the time to visit more Horse SA member sites when choosing your next product, service or event to attend.
Club directory http://www.horsesa.asn.au/clubs/directory/
Business directory http://www.horsesa.asn.au/business/directory/
Horse SA http://www.horsesa.asn.au
This lecture describes the use of ultrasonography in animal reproduction. This lecture would be useful for veterinary students, practitioners, and researchers.
Cattle and Mare reproductive system differencesmbilalanwar
information about rep. system of mare and cow included there functions and differences.
also included about abnormalities (freemartin calf) and artificial insemination technique animation.
Presented at the Horse SA Horse Breeding Expo by Dr. Jose Len from the University of Adelaide Equine Health & Performance Centre.
Horse SA conducted three South Australian horse industry promotional events on the 2, 3, 4 June 2016. The events were made possible by members, sponsors and supporters ably assisted by many volunteers.
2 June: Horse health & industry information session at which ‘My Horse Disaster Plan’, http://www.myhorsedisasterplan.org.au/ to which the presentation by Dr. Robin van den Boom on the health of horses affected by the Pinery Fires is uploaded. http://tinyurl.com/hqejfmz Presentations also by Trevor Taylor, Regional Development Australia on a proposed equine multi-use centre and Chris Madigan of NRM Adelaide & Mt. Lofty Ranges.
3 June: Let’s Ride! (or drive, own or more with a horse!) http://www.horsesa.asn.au/lets-ride-or-drive-own-or-just-enjoy-horses/
4 June: Horse Breeding Expo http://www.horsesa.asn.au/horse-breeding/
Please take the time to visit more Horse SA member sites when choosing your next product, service or event to attend.
Club directory http://www.horsesa.asn.au/clubs/directory/
Business directory http://www.horsesa.asn.au/business/directory/
Horse SA http://www.horsesa.asn.au
This lecture describes the use of ultrasonography in animal reproduction. This lecture would be useful for veterinary students, practitioners, and researchers.
Cattle and Mare reproductive system differencesmbilalanwar
information about rep. system of mare and cow included there functions and differences.
also included about abnormalities (freemartin calf) and artificial insemination technique animation.
Nucleophilic Addition of carbonyl compounds.pptxSSR02
Nucleophilic addition is the most important reaction of carbonyls. Not just aldehydes and ketones, but also carboxylic acid derivatives in general.
Carbonyls undergo addition reactions with a large range of nucleophiles.
Comparing the relative basicity of the nucleophile and the product is extremely helpful in determining how reversible the addition reaction is. Reactions with Grignards and hydrides are irreversible. Reactions with weak bases like halides and carboxylates generally don’t happen.
Electronic effects (inductive effects, electron donation) have a large impact on reactivity.
Large groups adjacent to the carbonyl will slow the rate of reaction.
Neutral nucleophiles can also add to carbonyls, although their additions are generally slower and more reversible. Acid catalysis is sometimes employed to increase the rate of addition.
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptxMAGOTI ERNEST
Although Artemia has been known to man for centuries, its use as a food for the culture of larval organisms apparently began only in the 1930s, when several investigators found that it made an excellent food for newly hatched fish larvae (Litvinenko et al., 2023). As aquaculture developed in the 1960s and ‘70s, the use of Artemia also became more widespread, due both to its convenience and to its nutritional value for larval organisms (Arenas-Pardo et al., 2024). The fact that Artemia dormant cysts can be stored for long periods in cans, and then used as an off-the-shelf food requiring only 24 h of incubation makes them the most convenient, least labor-intensive, live food available for aquaculture (Sorgeloos & Roubach, 2021). The nutritional value of Artemia, especially for marine organisms, is not constant, but varies both geographically and temporally. During the last decade, however, both the causes of Artemia nutritional variability and methods to improve poorquality Artemia have been identified (Loufi et al., 2024).
Brine shrimp (Artemia spp.) are used in marine aquaculture worldwide. Annually, more than 2,000 metric tons of dry cysts are used for cultivation of fish, crustacean, and shellfish larva. Brine shrimp are important to aquaculture because newly hatched brine shrimp nauplii (larvae) provide a food source for many fish fry (Mozanzadeh et al., 2021). Culture and harvesting of brine shrimp eggs represents another aspect of the aquaculture industry. Nauplii and metanauplii of Artemia, commonly known as brine shrimp, play a crucial role in aquaculture due to their nutritional value and suitability as live feed for many aquatic species, particularly in larval stages (Sorgeloos & Roubach, 2021).
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...Travis Hills MN
Travis Hills of Minnesota developed a method to convert waste into high-value dry fertilizer, significantly enriching soil quality. By providing farmers with a valuable resource derived from waste, Travis Hills helps enhance farm profitability while promoting environmental stewardship. Travis Hills' sustainable practices lead to cost savings and increased revenue for farmers by improving resource efficiency and reducing waste.
Phenomics assisted breeding in crop improvementIshaGoswami9
As the population is increasing and will reach about 9 billion upto 2050. Also due to climate change, it is difficult to meet the food requirement of such a large population. Facing the challenges presented by resource shortages, climate
change, and increasing global population, crop yield and quality need to be improved in a sustainable way over the coming decades. Genetic improvement by breeding is the best way to increase crop productivity. With the rapid progression of functional
genomics, an increasing number of crop genomes have been sequenced and dozens of genes influencing key agronomic traits have been identified. However, current genome sequence information has not been adequately exploited for understanding
the complex characteristics of multiple gene, owing to a lack of crop phenotypic data. Efficient, automatic, and accurate technologies and platforms that can capture phenotypic data that can
be linked to genomics information for crop improvement at all growth stages have become as important as genotyping. Thus,
high-throughput phenotyping has become the major bottleneck restricting crop breeding. Plant phenomics has been defined as the high-throughput, accurate acquisition and analysis of multi-dimensional phenotypes
during crop growing stages at the organism level, including the cell, tissue, organ, individual plant, plot, and field levels. With the rapid development of novel sensors, imaging technology,
and analysis methods, numerous infrastructure platforms have been developed for phenotyping.
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability.
Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
I will finally argue that deep variability is both the problem and solution of frictionless reproducibility, calling the software science community to develop new methods and tools to manage variability and foster reproducibility in software systems.
Exposé invité Journées Nationales du GDR GPL 2024
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...University of Maribor
Slides from talk:
Aleš Zamuda: Remote Sensing and Computational, Evolutionary, Supercomputing, and Intelligent Systems.
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Inter-Society Networking Panel GRSS/MTT-S/CIS Panel Session: Promoting Connection and Cooperation
https://www.etran.rs/2024/en/home-english/
ANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptxRASHMI M G
Abnormal or anomalous secondary growth in plants. It defines secondary growth as an increase in plant girth due to vascular cambium or cork cambium. Anomalous secondary growth does not follow the normal pattern of a single vascular cambium producing xylem internally and phloem externally.
2. Stallion Physiology
Onset of sexual maturity 10-24 mo
Life span of sperm in female
tract
2-4 days
Survival time with fertilizing
capacity
1-2 days
Sperm output
Semen volume/ejaculate 20-100 ml
3. Sperm Production
• Sperm Output and
Production is
influenced by:
– Season
– Testicular size
– Age
– Frequency of
ejaculation
– Behavior
4. Number of Sperm Depends On:
• Seasonal Influences (Photoperiod)
– Effected Areas
• Ejaculate volume
• Sperm numbers
• Total sperm/ejaculate
• Sperm motility
• Willingness to breed
• Mounts before breeding
• Scrotal size
• Testosterone production
5. Mare Anatomy
• Vulva
• Vagina
• Cervix
• Uterus
• Oviducts
• Ovaries
Left Ovary
Oviduct
Left Uterine
Horn
Uterine Body
Cervix Vagina
7. Photoperiod Effect
• Reproductive activity in
spring is stimulated by
an increasing
photoperiod
• Mechanism
– Alteration of hormone
secretion by the pineal
gland and hypothalamus
8. Receptors in eye
Pineal gland
Hypothalamus
Anterior pituitary
Ovaries
Increasing day length Decreasing day length
Neuropathway Neuropathway
Decreasing melatonin Increasing melatonin
Increasing GnRH Decreasing GnRH
Increasing
gonadotropins
Decreasing
gonadotropins
J F M A M J J A S O N D
11. Diestrus
Corpus Luteum
Formation
• Corpus luteum -
secretion of
progesterone.
• Progesterone -
responsible for
keeping the mare out
of heat and for
maintaining
pregnancy.
12. Signs of Estrus
• Most consistent
– Elevated tail raise
– Winking
• Other supporting signs
– Leaning
– Squatting
– Standing still
– Urinating
Ovary – 2X1.5” in diameter. Located on pinched in face of ovary is ovulation fossa – unique anatomical feature of equine ovary.
Oviducts = ~8-12”long.
Uterus – Body & 2 horns. 8” wide X 3” wide
Cervix – 2-3”. Longitudinal folds
Vagina – 7-9” long & 4-5” diameter
Anestrus – The period when most mares show no signs of reproductive activity at all.
Diestrus – The period when the mare is not receptive to the stallion (usually lasts 17-19 days)
Estrous – Entire reproductive cycle. The average length of the estrous cycle is 21-23 days (from one ovulation to the next).
Estrus – Refers to “heat”, the period when the mare is receptive to the stallion (usually lasts 5-6 days).
Photoperiod Effect
Reproductive activity in spring is stimulated by an increasing photoperiod
Mechanism
Alteration of hormone secretion by the pineal gland and hypothalamus