农业工程学报Issue(17)：176-181,6.DOI:10.3969/j.issn.1002-6819.2013.17.023
日粮类型对细毛羊甲烷排放及代谢物碳残留的影响
Effects of diet types on methane production and carbon residue of metabolites of Xinjiang fine wool sheep
摘要
Abstract
This study explored a way which could decrease or control the rument animal methane gas production. The objective of the present study was to investigate the effects of diet types on methane production and carbon residue in metabolites of Xinjiang fine wool sheep. Sixty sheep, which were 4 months old and had a (25±1) kg body weight, were used in a completely randomized design and divided into four groups, which were groupⅠ(the concentrate to forage rate was 20:80, and the forage was dry corn stalks), groupⅡ(the concentrate to forage rate was 20:80, and the forage was corn silage), groupⅢ(the concentrate to forage rate was 40:60, and the forage was dry corn stalks), and group Ⅳ (the concentrate to forage rate was 40:60, and the forage was corn silage), respectively. The feeding, residues, feces, and urine were recorded and collected on post-feeding every day on the 11th to 17th days. Then parts of the samples were collected from the 7 days’ mixed samples by the quarter method, and -20℃ preservation for measuring carbon in the laboratory. The 24 h methane gas was collected on post-feeding every day on the 11th to 17th days. The results showed that methane production of groupⅡ was reduced (P<0.01) compared with the groupⅠ, and the groupⅣwas lower 12%than the groupⅢ(P>0.05) when the corn silage was substituted for corn stalks. When the forge were corn stalks, methane production per unit of dry matter was significant lower with the concentrate to forage rate increased (P<0.05), while no difference was observed when the forge were corn silage with the concentrate to forage rate increased. Carbon residue in metabolites of groupⅣwas lower than groupⅠ(P<0.05), and groupⅡand groupⅣwere reduced by 16.67%and 9.09%compared with groupⅠand groupⅢ(P>0.05), respectively. In this study, we found that the diet types have a significant effect for methane gas production and metabolite carbon residue on Xinjiang fine wool sheep.关键词
碳/排放控制/甲烷/日粮/新疆细毛羊Key words
carbon/emission control/methane/diet/Xinjiang fine wool sheep分类
农业科技引用本文复制引用
桑断疾,董红敏,郭同军,罗永明,刘翀,张俊瑜,洪权..日粮类型对细毛羊甲烷排放及代谢物碳残留的影响[J].农业工程学报,2013,(17):176-181,6.基金项目
自治区公益性科研院所基本科研业务经费资助项目；新疆维吾尔自治区自然科学基金 （）
