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   Animal Variation Workshop NZ 2009  Minimize


Livestock Breeding for Greenhouse Gas outcomes
The 3 day workshop workshop funded by MAF and PGgRc was held in Wellington, New Zealand on March 3-5 2009 under the auspices of LEARN. There was Twenty-nine participants from 7 countries in attendance.

The workshop was the first opportunity to bring together animal genetics and animal methane researchers to discuss aspects of genetic improvement for enteric emissions. Many Opportunities and constraints to reducing emissions by genetic improvement of animals were identified.


Workshop Report 

Presentations

Workshop Introductory Presentation - Roger Hegarty Workshop introduction and background - Roger Hegarty

1. Livestock Greenhouse Fundamentals


  An overview from global to animal level and what we might breed for  Hegarty

 Greenhouse accounting for ruminant emissions and including animal genetic improvement   Clark

Enteric methane mitigation research underway in Australia    Henry

2. Genetics of methane production in ruminants


 Impact of genetic selection for performance on greenhouse gas emissions from Merinos Cottle

Spin-off benefits from current genetic improvement in the NZ sheep industry and potential for enhancement. Amer

GHG changes associated with genotype changes in the NZ dairy herd    Montgomerie

 New Zealand studies of low methane yield sheep’. Pinares

  Australian studies on “Low Methane Cattle   Hegarty

Results of PGgRc, Vialactia, LIC dairy genomics methane study   Berry


3. Defining the methane phenotype


 Between- and within-animal variation in methane production   Robinson

Current methane measurement techniques and their errors     Vlaming 

 High throughput measures and proxies for methane production from ruminants  Goopy

Development and possible applications of long term slow intake breath subsamplers in identifying methane phenotype of ruminants  Gere

DAY 2

4. The intake challenge (of relevance to methane & RFI)


Methods and possibilities for determining feed intake of grazing ruminants  Dove

 An assessment of net energy expenditure measurement in ruminants Brosh

A tracer approach to measuring energy expenditure   Hegarty

5. Future research & essential tasks


 Intended Australian research for breeding low methane cattle    Donoghue

 Intended Australian research for breeding low methane sheep   Vercoe

future NZ plans for sheep genetics research  New Zealand plans for sheep genetics research for GHG mitigation    McEwan/Pinares

6. Net Feed Intake (possibilities and current constraints)


Feed Intake, residual fee intake and its implementation in Australia   Donoghue

Basarab Implementation of RFI and GHG emissions in CanadaAssociation between RFI and GHG emissions, and implementation of RFI in Canada   Basarab

 Net feed intake research initiatives for cattle in Brazil    Lana

Irish Dairy cow studies on methaneStudies on breed differences in feed-use efficiency    Lewis

genetics and nitrogen efficiency.pdfIntroducing genetics & Nitrogen  efficiency    Waghorn

DAY 3


irish studies on NFI.pdf  Irish research on Net Feed Intake for beef (and effects on GHG emissions) Kenny

Selection for residual feed intake Selection for Net Feed Intake in NZ dairy heifers Waghorn

 Recommendations on trait, measurement procedures and research needed in breeding for low GHG livestock

     

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