家畜生态学报2026，Vol.47Issue(3)：45-51,7.DOI:10.3969/j.issn.1673-1182.2026.03.007
不同饲料原料营养价值及对肉牛瘤胃体外发酵特性的影响
Nutritive Value of Different Feed Ingredients and Their Effect on in vitro Fermentation Characteristics of Beef Cattle
摘要
Abstract
The aim of this experiment was to analyze the nutritional composition of different feedstuffs and to assess their methane production potential and their effect on the in vitro fermentation characteristics of beef cattle using in vitro gas production.Soybean meal,rapeseed meal,sesame meal,palm meal,brew-er's lees,dry white wine lees and dry corn lees were used as fermentation substrates,and the gas produc-tion,dry matter degradation rate(DMD),volatile fatty acid(VFA),ammoniacal nitrogen(NH3-N),mi-crobial protein(MCP),and pH were determined using gas-producing flasks with in-vitro gas-producing method.The results showed that the highest crude protein(CP)among the raw materials were soybean meal(47.88％)and sesame meal(47.30％),followed by rapeseed meal(39.91％).Soybean meal and cano-la meal had the fastest gas production rate(P＜0.01)at 0h-24h of fermentation,with the rapid gas pro-duction of canola meal being significantly higher than that of other fermentation substrates(P＜0.01).Fermentation of soybean meal and canola meal produced significantly higher total VFA and acetic acid con-centrations than the other substrates(P＜0.01).The in vitro degradation rate of soybean meal(82.39％)was the highest,significantly higher than that of the rest of the substrates(P＜0.01);the NH3-N concen-tration of sesame meal(30.97％)was the highest,significantly higher than that of the rest of the sub-strates(P＜0.01);and the MCP concentration of canola meal(56.75％)was the highest,significantly higher than that of the rest of the substrates(P＜0.01).Methane emissions varied among fermentation substrates,with soybean meal(22.15％)and canola meal(20.91％)having significantly higher methane e-missions than the rest of the substrates(P＜0.01),while dry white wine lees(13.28％)had the lowest methane emissions(P＜0.01).In summary,there are some differences in nutritional value,in vitro fer-mentation characteristics and methane emission among different feeds,among which canola meal with high in vitro fermentation dry matter digestibility,gas production and microbial protein content is a suitable protein source for ruminant diets and can be developed and utilized as a good protein feed resource.关键词
蛋白质饲料/粕类饲料/酒糟/体外产气法/瘤胃发酵特性/甲烷Key words
protein feed/meal feed/wine lees/in vitro gas production method/rumen fermentation characteristics/methane分类
农业科技引用本文复制引用
夏敏,肖定福,肖海翔,刘文昌,李靖,张现东,米慧,何帮林,李付强,肖正中..不同饲料原料营养价值及对肉牛瘤胃体外发酵特性的影响[J].家畜生态学报,2026,47(3):45-51,7.基金项目
国家现代农业产业技术体系建设专项资助(CARS-37) （CARS-37）
