Methane emissions, feed intake, and total tract digestibility in lambs fed diets differing in fat content and fibre digestibility
| Autor: | Sean M. McGinn, Y.-H. Chung, Odd Magne Harstad, G. H. Crow, E. J. McGeough, L.C.G Passetti, Tim A. McAllister, Karen A. Beauchemin |
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| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
Methane emissions Chemistry Fat content 0402 animal and dairy science 04 agricultural and veterinary sciences 040201 dairy & animal science Enteric methane 03 medical and health sciences 030104 developmental biology Animal science Food Animals Latin square Animal Science and Zoology |
| Zdroj: | Canadian Journal of Animal Science. 99:858-866 |
| ISSN: | 1918-1825 0008-3984 |
| Popis: | This study determined enteric methane (CH4) emissions, intake, and apparent total tract digestibility of diets varying in fibre digestibility and fat content. A Latin square design with two levels of fat [2.0% and 6.0% dry matter (DM); low and high] and two levels of fibre digestibility [low fibre digestibility (LFbD) or high fibre digestibility (HFbD)] was used. Higher dry matter intake (DMI) was observed (P −1, respectively), with no effect of fat. Fibre, DM, and organic matter digestibility were higher (P 4 (g kg−1 DMI, organic matter intake, neutral detergent fibre intake, and percent gross energy intake), with emissions being higher when fat was added to the HFbD than the LFbD diet. The CH4 emissions per kilogram of neutral detergent fibre (NDF) digested were higher (P 4 emissions as a proportion of DMI or NDF intake in diets differing in fibre digestibility. |
| Databáze: | OpenAIRE |
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