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Title: Towards selecting for lower methane sheep
Contributor(s): Fitzgerald, P T  (author)orcid ; Clayton, E H (author); Donaldson, A J (author); Brown, D J  (author)orcid ; Oddy, V H  (author)orcid ; Van Der Werf, J H J  (author)orcid 
Publication Date: 2023-07-26
Open Access: Yes
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The aim of this project is to enable Australian sheep breeders to select for reduced enteric methane emission, allowing industry to achieve a permanent and cumulative 4.2% reduction (0.8 MtCO2e) in methane emissions from sheep by 2030 and 15% reduction (2.6 MtCO2e) by 2040. A mobile field test using portable accumulation chambers for measuring methane emissions on 10,000 sheep across research and breeder flocks is being rolled out. Five thousand sheep will have feed intake, rumen microbiome and volatile fatty acids profiles recorded to better understand and improve CH4 emission predictions. Combined with their genotype information, this data will allow genomic prediction of breeding values on selection candidates. Work to date has demonstrated that the protocol for methane measurement is robust and the preliminary data gathered has shown that there is sufficient variation in methane production among animals to enable selection for reduced methane production. Different technologies used to measure emissions data are highly correlated.

Publication Type: Conference Publication
Conference Details: AAABG 2023: 25th Conference of the Association for the Advancement of Animal Breeding and Genetics, Perth, Australia, 26th - 28th July, 2023
Source of Publication: Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.25, p. 178-181
Publisher: Association for the Advancement of Animal Breeding and Genetics (AAABG)
Place of Publication: Armidale, Australia
ISSN: 1328-3227
Fields of Research (FoR) 2020: 300305 Animal reproduction and breeding
Socio-Economic Objective (SEO) 2020: 100412 Sheep for meat
100413 Sheep for wool
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
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Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Conference Publication
School of Environmental and Rural Science

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