Genetic and environmental variation in methane emissions of sheep at pasture

Robinson, Dorothy L; Goopy, John P; Vercoe, P E; Hegarty, Roger; Oddy, Hutton; Thompson, A N; Toovey, A F; Macleay, CA; Briegal, J R; Woodgate, R T; Donaldson, A J

doi:10.2527/jas.2014-8042

Author(s)

Robinson, Dorothy L

Goopy, John P

Vercoe, P E

Hegarty, Roger

Oddy, Hutton

Thompson, A N

Toovey, A F

Macleay, CA

Briegal, J R

Woodgate, R T

Donaldson, A J

Publication Date

2014

Abstract

A total of 2,600 methane (CH4) and 1,847 CO2 measurements of sheep housed for 1 h in portable accumulation chambers (PAC) were recorded at 5 sites from the Australian Sheep CRC Information Nucleus, which was set up to test leading young industry sires for an extensive range of current and novel production traits. The final validated dataset had 2,455 methane records from 2,279 animals, which were the progeny of 187 sires and 1,653 dams with 7,690 animals in the pedigree file. The protocol involved rounding up animals from pasture into a holding paddock before the first measurement on each day and then measuring in groups of up to 16 sheep over the course of the day. Methane emissions declined linearly (with different slopes for each site) with time since the sheep were drafted into the holding area.

Citation

Journal of Animal Science, 92(10), p. 4349-4363

ISSN

1525-3163

0021-8812

Link

https://hdl.handle.net/1959.11/17298

Language

en

Publisher

American Society of Animal Science

Title

Genetic and environmental variation in methane emissions of sheep at pasture

Type of document

Journal Article

Entity Type

Publication

Author(s)	Robinson, Dorothy L Goopy, John P Vercoe, P E Hegarty, Roger Oddy, Hutton Thompson, A N Toovey, A F Macleay, CA Briegal, J R Woodgate, R T Donaldson, A J
Publication Date	2014
Abstract	A total of 2,600 methane (CH4) and 1,847 CO2 measurements of sheep housed for 1 h in portable accumulation chambers (PAC) were recorded at 5 sites from the Australian Sheep CRC Information Nucleus, which was set up to test leading young industry sires for an extensive range of current and novel production traits. The final validated dataset had 2,455 methane records from 2,279 animals, which were the progeny of 187 sires and 1,653 dams with 7,690 animals in the pedigree file. The protocol involved rounding up animals from pasture into a holding paddock before the first measurement on each day and then measuring in groups of up to 16 sheep over the course of the day. Methane emissions declined linearly (with different slopes for each site) with time since the sheep were drafted into the holding area.
Citation	Journal of Animal Science, 92(10), p. 4349-4363
ISSN	1525-3163 0021-8812
Link	https://hdl.handle.net/1959.11/17298
Language	en
Publisher	American Society of Animal Science
Title	Genetic and environmental variation in methane emissions of sheep at pasture
Type of document	Journal Article
Entity Type	Publication

Genetic and environmental variation in methane emissions of sheep at pasture

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