Preliminary estimates of on-farm methane emissions for sheep production on the Northern Tablelands of Australia   Estimati...
Outline <ul><li>Background </li></ul><ul><li>Sheep production on the Northern Tablelands </li></ul><ul><ul><li>Objectives ...
UWA: Ridgefield, Pingelly, WA CSIRO: Lansdown, Qld DPI Victoria:  DPI Hamilton/ Demo dairy Terang, Victoria UNE: Trevenna,...
UWA: Ridgefield, Pingelly, WA CSIRO: Lansdown, Qld DPI Victoria:  DPI Hamilton/ Demo dairy Terang, Victoria UNE: Trevenna,...
Main Project Objectives at the Trevenna site <ul><li>Demonstrate </li></ul><ul><ul><li>differences in methane (CH 4 ) prod...
The Site - 36 ha at “Trevenna” UNE, Armidale Hills <ul><li>2 landscapes ( hills  and  flats ) </li></ul><ul><li>3 classes ...
On-farm data collection <ul><li>Soil samples </li></ul><ul><li>Pasture collection (monthly) </li></ul><ul><ul><li>Green </...
On-farm data collection (continued) <ul><li>GPS satellite data </li></ul><ul><ul><li>‘ Crop Circle’ scanning equipment </l...
Methane estimates and analyses <ul><li>Methane estimates </li></ul><ul><ul><li>GrazFeed TM </li></ul></ul><ul><ul><li>AusF...
Sheep Production <ul><li>144 Merino ewes group mated with Border Leicester rams </li></ul><ul><li>6 flocks (3 on the hills...
 
 
 
Heading Crop Scanner Index Green Biomass (kg DM/ha) Crop Circle Relationship  Between Green Biomass and Crop Scanner Index...
Flats Flats Hills (kg DM/ha) Index map: Green Pasture Available (kg DM/ha)
Intensity of grazing from 8 th  Sept to 18 th  October (kg DM/ha)
 
Methane (CH 4 ) produced (g)/kg live weight gain  (LWG)  on the hills and flats based on pasture available (GrazFeed TM  I...
From crop scanning and pasture assessment data Methane (CH 4 ) produced (g)/kg live weight gain  (LWG)  on the hills and f...
Conclusions <ul><li>On a sustainably stocked production system </li></ul><ul><ul><li>the flats produced lower methane emis...
Acknowledgements <ul><li>Advisory Team Members </li></ul><ul><ul><li>Clare Edwards  Agronomist. I & I NSW </li></ul></ul><...
 
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Preliminary results of estimating on-farm methane - Malcolm McPhee

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Preliminary results of estimating on-farm methane - Malcolm McPhee

  1. 1. Preliminary estimates of on-farm methane emissions for sheep production on the Northern Tablelands of Australia Estimating on-farm sheep methane emissions Preliminary results of estimating on-farm methane emissions for sheep production on the Northern Tablelands of Australia– Dr Malcolm McPhee – Animal Production – 15 th February 2011
  2. 2. Outline <ul><li>Background </li></ul><ul><li>Sheep production on the Northern Tablelands </li></ul><ul><ul><li>Objectives </li></ul></ul><ul><ul><li>On-farm data collection </li></ul></ul><ul><ul><li>Methane estimates and analyses </li></ul></ul><ul><ul><li>Sheep production data </li></ul></ul><ul><li>Preliminary results </li></ul>
  3. 3. UWA: Ridgefield, Pingelly, WA CSIRO: Lansdown, Qld DPI Victoria: DPI Hamilton/ Demo dairy Terang, Victoria UNE: Trevenna, Armidale, NSW “ Reducing Livestock Emissions Program” to demonstrate potential mitigation strategies for enteric emissions .
  4. 4. UWA: Ridgefield, Pingelly, WA CSIRO: Lansdown, Qld DPI Victoria: DPI Hamilton/ Demo dairy Terang, Victoria UNE: Trevenna, Armidale, NSW
  5. 5. Main Project Objectives at the Trevenna site <ul><li>Demonstrate </li></ul><ul><ul><li>differences in methane (CH 4 ) production from sheep grazing on different landscapes: </li></ul></ul><ul><ul><ul><li>low fertility (hills @ 3.7 DSE/ha) </li></ul></ul></ul><ul><ul><ul><ul><li>versus </li></ul></ul></ul></ul><ul><ul><ul><li>high fertility (flats @ 6.7 DSE/ha) </li></ul></ul></ul><ul><ul><li>techniques for </li></ul></ul><ul><ul><ul><li>estimating CH 4 (e.g. GrazFeed) and </li></ul></ul></ul><ul><ul><ul><li>measuring CH 4 (e.g. FTIR) </li></ul></ul></ul>
  6. 6. The Site - 36 ha at “Trevenna” UNE, Armidale Hills <ul><li>2 landscapes ( hills and flats ) </li></ul><ul><li>3 classes (A,B,C) </li></ul><ul><li>3 paddocks (1,2,3)/class </li></ul>Flats Flats
  7. 7. On-farm data collection <ul><li>Soil samples </li></ul><ul><li>Pasture collection (monthly) </li></ul><ul><ul><li>Green </li></ul></ul><ul><ul><li>Dead </li></ul></ul><ul><ul><li>Digestibility </li></ul></ul><ul><li>Animal (monthly) </li></ul><ul><ul><li>Live weights </li></ul></ul><ul><ul><li>Condition scores </li></ul></ul><ul><li>Wool (yearly) </li></ul><ul><ul><li>Staple and tensile strength and fibre diameter </li></ul></ul>
  8. 8. On-farm data collection (continued) <ul><li>GPS satellite data </li></ul><ul><ul><li>‘ Crop Circle’ scanning equipment </li></ul></ul><ul><ul><li>GPS tracking devices </li></ul></ul><ul><li>On-farm energy use e.g. fertilizer; supplementary feeding </li></ul><ul><li>Nitrous oxide (N 2 O) </li></ul><ul><li>H 2 O balance </li></ul>
  9. 9. Methane estimates and analyses <ul><li>Methane estimates </li></ul><ul><ul><li>GrazFeed TM </li></ul></ul><ul><ul><li>AusFarm TM </li></ul></ul><ul><ul><li>SGS </li></ul></ul><ul><li>Methane analyses </li></ul><ul><ul><li>Life cycle analysis </li></ul></ul><ul><ul><li>Economic analysis </li></ul></ul>
  10. 10. Sheep Production <ul><li>144 Merino ewes group mated with Border Leicester rams </li></ul><ul><li>6 flocks (3 on the hills and 3 on the flats) </li></ul><ul><ul><li>3.7 DSE/ha on hills </li></ul></ul><ul><ul><li>6.7 DSE/ha on flats </li></ul></ul><ul><ul><li>lambing in September. </li></ul></ul>
  11. 14. Heading Crop Scanner Index Green Biomass (kg DM/ha) Crop Circle Relationship Between Green Biomass and Crop Scanner Index Y=15.1exp 6.8x R 2 =0.63
  12. 15. Flats Flats Hills (kg DM/ha) Index map: Green Pasture Available (kg DM/ha)
  13. 16. Intensity of grazing from 8 th Sept to 18 th October (kg DM/ha)
  14. 18. Methane (CH 4 ) produced (g)/kg live weight gain (LWG) on the hills and flats based on pasture available (GrazFeed TM Inputs and Outputs) From crop scanning and pasture assessment data
  15. 19. From crop scanning and pasture assessment data Methane (CH 4 ) produced (g)/kg live weight gain (LWG) on the hills and flats based on pasture available (GrazFeed TM Inputs and Outputs)
  16. 20. Conclusions <ul><li>On a sustainably stocked production system </li></ul><ul><ul><li>the flats produced lower methane emissions per kg LWG </li></ul></ul><ul><li>Trevenna a demonstration site for farmer delivery </li></ul><ul><ul><li>estimating CH 4 (e.g. GrazFeed) and </li></ul></ul><ul><ul><li>demonstrating how to increase economic viability consistent with delivering lower emissions intensity </li></ul></ul>
  17. 21. Acknowledgements <ul><li>Advisory Team Members </li></ul><ul><ul><li>Clare Edwards Agronomist. I & I NSW </li></ul></ul><ul><ul><li>Jim Meckiff Livestock Officer. I & I NSW </li></ul></ul><ul><ul><li>Chris Shands Livestock Officer. I & I NSW </li></ul></ul><ul><li>UNE Farm Management </li></ul><ul><ul><li>Neil Baillie Senior Technical Officer. UNE </li></ul></ul><ul><ul><li>Paul Arnott Farm Manager. UNE </li></ul></ul><ul><li>Crop circle scanner </li></ul><ul><ul><li>Derek Schneider. UNE </li></ul></ul><ul><li>Research Team Members </li></ul><ul><ul><li>Roger Hegarty. UNE </li></ul></ul><ul><ul><li>Darryl Savage. UNE </li></ul></ul><ul><ul><li>Annette Cowie. PIIC – UNE & I & I NSW </li></ul></ul><ul><ul><li>Chris Guppy. UNE </li></ul></ul><ul><ul><li>David Lamb. UNE </li></ul></ul><ul><li>Producer Advisory Group </li></ul>
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