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|Title:||Four week repeatability of daily and one hour methane production of mature merino wethers fed 'ad libitum'||Contributor(s):||Bickell, S L (author); Robinson, Dorothy L (author); Toovey, A F (author); Goopy, John P (author); Hegarty, Roger (author); Revell, D K (author); Vercoe, P E (author)||Publication Date:||2011||Handle Link:||https://hdl.handle.net/1959.11/18704||Abstract:||Daily methane production (DMP) and 1-hour methane production (1-h MP) were measured twice, 4 weeks apart, on Merino wethers fed 'ad libitum'. This study aimed to determine the 4-week repeatability of DMP and 1-h MP as well as determine how well 1-h MP predicts DMP. After a 4-week interval, the repeatability of DMP was 0.49, while the repeatability of 1-h MP was 0.24. The correlation between DMP and 1-h MP was 0.56 for the first measurement and 0.66 for the second. It was estimated that the mean of 3 independent 1-hour measurements would be at least as repeatable as the DMP measurement. A 1-h MP measurement is a moderate predictor of DMP when sheep are fed 'ad libitum', which may occur during generous grazing conditions, and thus using 1-h MP as tool to select animals for low methane production may be feasible.||Publication Type:||Conference Publication||Conference Details:||19th Conference of the Association for the Advancement of Animal Breeding and Genetics, Perth, Australia, 19th - 21st July, 2011||Source of Publication:||Breeding Objectives: A New Paradigm, p. 415-418||Publisher:||AAABG: Association for the Advancement of Animal Breeding and Genetics||Place of Publication:||Perth, Australia||Field of Research (FOR):||070201 Animal Breeding
070204 Animal Nutrition
|Socio-Economic Objective (SEO):||830310 Sheep - Meat||Peer Reviewed:||Yes||HERDC Category Description:||E1 Refereed Scholarly Conference Publication||Other Links:||http://www.aaabg.org/aaabg19/||Series Name:||Proceedings of the AAABG ... Conference||Series Number :||19||Statistics to Oct 2018:||Visitors: 108
|Appears in Collections:||Conference Publication|
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