Impact of concentrate feeding and rumination on the methane production of cows in a pasture-based automatic milking system.

Lucinda Watt, C.E.F. Clark, Gaye Krebs, Christopher Petzel, S.A. Utsumi

Research output: Book chapter/Published conference paperConference paper

Abstract

The impact of ruminant greenhouse gas emissions on the environment is an issue of global concern. The differential effect of grain-based concentrate (GBC) feeding and rumination level on the enteric methane output of cows was tested in a pasture-based, automatic milking system (AMS). Two close groups of cows (n=30/group) representing either consistently high (HR; 619.85 ± 8.89 min/d) or low (LR; 472.50 ± 10.22 min/d) rumination animals were selected and assigned to three GBC treatments offering same pasture and 7, 8.5, or 10 kg/d of GBC obtained by the offering of 7 kg/d of grain-based pellet plus 0, 1.5 and 3 kg/d of ground shelled corn (n=10 cows/GBC level). Rumination time, mass flux of methane (QCH4) and carbon dioxide (QCO2), milk production, and dry matter intake (DMI) derived from QCO2 measurements, was recorded and analysed with mixed models for a completely randomised design and structural equation models. Regardless of the level of rumination, there was only a marginal effect of GBC feeding on QCH4. However, evidence for differential effects of DMI on milk production and QCH4 support promising opportunities to reduce yield of QCH4/milk in grazing dairy cows.
Original languageEnglish
Title of host publicationCurrent Topics in Dairy Production
Place of PublicationSydney, Australia
PublisherDairy Research Foundation, The University of Sydney
Pages86-91
Number of pages5
Volume21
Publication statusPublished - Jun 2016
EventDairy Research Foundation Symposium: Current Topics in Dairy Production - Charles Sturt University, Wagga Wagga, Australia
Duration: 15 Jun 201617 Jun 2016
https://sydney.edu.au/vetscience/foundations/drf/2016ProgramFinal.pdf

Conference

ConferenceDairy Research Foundation Symposium
CountryAustralia
CityWagga Wagga
Period15/06/1617/06/16
Internet address

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rumination
methane production
milking
concentrates
pastures
cows
dry matter intake
milk production
greenhouse gas emissions
methane
pellets
milk yield
ruminants
dairy cows
carbon dioxide
grazing
corn
animals

Cite this

Watt, L., Clark, C. E. F., Krebs, G., Petzel, C., & Utsumi, S. A. (2016). Impact of concentrate feeding and rumination on the methane production of cows in a pasture-based automatic milking system. In Current Topics in Dairy Production (Vol. 21, pp. 86-91). Sydney, Australia: Dairy Research Foundation, The University of Sydney.
Watt, Lucinda ; Clark, C.E.F. ; Krebs, Gaye ; Petzel, Christopher ; Utsumi, S.A. / Impact of concentrate feeding and rumination on the methane production of cows in a pasture-based automatic milking system. Current Topics in Dairy Production. Vol. 21 Sydney, Australia : Dairy Research Foundation, The University of Sydney, 2016. pp. 86-91
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abstract = "The impact of ruminant greenhouse gas emissions on the environment is an issue of global concern. The differential effect of grain-based concentrate (GBC) feeding and rumination level on the enteric methane output of cows was tested in a pasture-based, automatic milking system (AMS). Two close groups of cows (n=30/group) representing either consistently high (HR; 619.85 ± 8.89 min/d) or low (LR; 472.50 ± 10.22 min/d) rumination animals were selected and assigned to three GBC treatments offering same pasture and 7, 8.5, or 10 kg/d of GBC obtained by the offering of 7 kg/d of grain-based pellet plus 0, 1.5 and 3 kg/d of ground shelled corn (n=10 cows/GBC level). Rumination time, mass flux of methane (QCH4) and carbon dioxide (QCO2), milk production, and dry matter intake (DMI) derived from QCO2 measurements, was recorded and analysed with mixed models for a completely randomised design and structural equation models. Regardless of the level of rumination, there was only a marginal effect of GBC feeding on QCH4. However, evidence for differential effects of DMI on milk production and QCH4 support promising opportunities to reduce yield of QCH4/milk in grazing dairy cows.",
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Watt, L, Clark, CEF, Krebs, G, Petzel, C & Utsumi, SA 2016, Impact of concentrate feeding and rumination on the methane production of cows in a pasture-based automatic milking system. in Current Topics in Dairy Production. vol. 21, Dairy Research Foundation, The University of Sydney, Sydney, Australia, pp. 86-91, Dairy Research Foundation Symposium, Wagga Wagga, Australia, 15/06/16.

Impact of concentrate feeding and rumination on the methane production of cows in a pasture-based automatic milking system. / Watt, Lucinda; Clark, C.E.F.; Krebs, Gaye; Petzel, Christopher; Utsumi, S.A.

Current Topics in Dairy Production. Vol. 21 Sydney, Australia : Dairy Research Foundation, The University of Sydney, 2016. p. 86-91.

Research output: Book chapter/Published conference paperConference paper

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T1 - Impact of concentrate feeding and rumination on the methane production of cows in a pasture-based automatic milking system.

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N2 - The impact of ruminant greenhouse gas emissions on the environment is an issue of global concern. The differential effect of grain-based concentrate (GBC) feeding and rumination level on the enteric methane output of cows was tested in a pasture-based, automatic milking system (AMS). Two close groups of cows (n=30/group) representing either consistently high (HR; 619.85 ± 8.89 min/d) or low (LR; 472.50 ± 10.22 min/d) rumination animals were selected and assigned to three GBC treatments offering same pasture and 7, 8.5, or 10 kg/d of GBC obtained by the offering of 7 kg/d of grain-based pellet plus 0, 1.5 and 3 kg/d of ground shelled corn (n=10 cows/GBC level). Rumination time, mass flux of methane (QCH4) and carbon dioxide (QCO2), milk production, and dry matter intake (DMI) derived from QCO2 measurements, was recorded and analysed with mixed models for a completely randomised design and structural equation models. Regardless of the level of rumination, there was only a marginal effect of GBC feeding on QCH4. However, evidence for differential effects of DMI on milk production and QCH4 support promising opportunities to reduce yield of QCH4/milk in grazing dairy cows.

AB - The impact of ruminant greenhouse gas emissions on the environment is an issue of global concern. The differential effect of grain-based concentrate (GBC) feeding and rumination level on the enteric methane output of cows was tested in a pasture-based, automatic milking system (AMS). Two close groups of cows (n=30/group) representing either consistently high (HR; 619.85 ± 8.89 min/d) or low (LR; 472.50 ± 10.22 min/d) rumination animals were selected and assigned to three GBC treatments offering same pasture and 7, 8.5, or 10 kg/d of GBC obtained by the offering of 7 kg/d of grain-based pellet plus 0, 1.5 and 3 kg/d of ground shelled corn (n=10 cows/GBC level). Rumination time, mass flux of methane (QCH4) and carbon dioxide (QCO2), milk production, and dry matter intake (DMI) derived from QCO2 measurements, was recorded and analysed with mixed models for a completely randomised design and structural equation models. Regardless of the level of rumination, there was only a marginal effect of GBC feeding on QCH4. However, evidence for differential effects of DMI on milk production and QCH4 support promising opportunities to reduce yield of QCH4/milk in grazing dairy cows.

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KW - Concentrates

KW - Rumination

KW - Methane emissions

KW - Pasture

KW - Automatic milking

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VL - 21

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BT - Current Topics in Dairy Production

PB - Dairy Research Foundation, The University of Sydney

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ER -

Watt L, Clark CEF, Krebs G, Petzel C, Utsumi SA. Impact of concentrate feeding and rumination on the methane production of cows in a pasture-based automatic milking system. In Current Topics in Dairy Production. Vol. 21. Sydney, Australia: Dairy Research Foundation, The University of Sydney. 2016. p. 86-91