动物营养学报2018，Vol.30Issue(4)：1592-1602,11.DOI:10.3969/j.issn.1006-267x.2018.04.045
常规与非常规粗饲料在奶牛瘤胃中的降解特性
Degradation Characteristics of Common Roughage and Roughage Forage in the Rumen of Dairy Cows
摘要
Abstract
In order to provide references when making formulas for dairy cows,this experiment was conducted to investigate the rumen degradation characteristics of 10 roughages including alfalfa silage, whole wheat si?lage, whole corn silage, alfalfa hay, oat hay(2 kinds), rice straw, peanut vine, millet straw and wheat straw. Nylon?bag technique was used to evaluate the degradation rates and effective degradability of dry matter, crude protein, neutral detergent fiber and acid detergent fiber in 72 h. The results showed as follows:dry mat?ter effective degradability of alfalfa silage(58.24%)was the highest,and to the contrary,that of wheat straw (34.20%)was the minimum. Crude protein effective degradability of alfalfa hay was the highest,and was sig?nificantly higher than that of whole wheat silage,alfalfa silage,whole corn silage,oat hay,rice straw,wheat straw, millet straw and peanut vine(P<0.05), which was decreased in the above order. Neutral detergent fi?ber effective degradability of whole wheat silage was not significantly different from whole corn silage,alfalfa hay and oat hay(P>0.05), but was significantly higher than that of other roughages(P<0.05). Acid deter?gent fiber effective degradability of whole wheat silage was significantly higher than that of other roughages (P<0.05). It is concluded that the rumen degradation rate of alfalfa hay and alfalfa silage is higher, so they have better nutritional value; wheat straw and millet straw had low nutritional quality, and compared with them, peanut vine possesses certain advantages.关键词
奶牛/粗饲料/瘤胃/有效降解率Key words
dairy cow/roughage/rumen/effective degradability分类
农业科技引用本文复制引用
刘艳芳,马健,都文,王雅晶,曹志军,李胜利,余雄..常规与非常规粗饲料在奶牛瘤胃中的降解特性[J].动物营养学报,2018,30(4):1592-1602,11.基金项目
现代农业(奶牛)产业技术体系建设专项资金(CARS-37) （奶牛）
