麻叶荨麻、羊草组合对乌珠穆沁羔羊表观消化率和瘤胃发酵参数的影响

发布时间：2018-02-21 20:06

本文关键词： 麻叶荨麻乌珠穆沁羔羊表观消化率瘤胃发酵　出处：《家畜生态学报》2017年05期 　论文类型：期刊论文

【摘要】：本试验旨在研究麻叶荨麻和羊草组合对乌珠穆沁羔羊表观消化性能和瘤胃发酵参数的影响。采用完全随机试验设计,将32只月龄、体重相近的健康乌珠穆沁羔羊随机分为4组,分别为:日粮1(天然牧草)、日粮2(羊草∶荨麻=1∶0)、日粮3(羊草∶荨麻=0∶1)、日粮4(羊草∶荨麻=1∶1)等进行饲养试验。其中预试期2周、正试期2个月。结果表明,日粮3组30d的干物质消化率、有机物消化率、粗蛋白质消化率显著低于日粮2组(P0.05),但在60d时的差异皆不显著(P0.05);日粮4组在30d和60d的NDF消化率显著高于日粮2组(P0.05);日粮3组在30d和60d的瘤胃液氨氮浓度显著高于其他日粮组(P0.05),总VFA浓度显著低于其他组(P0.05)、乙丙比显著高于日粮2组(P0.05);日粮3组的瘤胃液细菌蛋白在30d低于日粮2组,但瘤胃液总微生物蛋白含量及pH在各组间的差异不显著(P0.05)。综合以上结果表明,日粮中荨麻与羊草比例为1∶1时不影响乌珠穆沁羔羊的饲料养分表观消化率和瘤胃发酵参数,并能够在一定程度上提高纤维类物质的消化率。
[Abstract]:The purpose of this study was to study the effects of the combination of nettles and Leymus chinensis on the apparent digestibility and rumen fermentation parameters of Wuzhimuqin lamb. 32 healthy Wudhumqin lambs of similar weight were randomly divided into 4 groups by a complete randomized design. Diet 1 (natural forage grass), diet 2 (Leymus chinensis: urticaria 1: 0), diet 3 (Leymus chinensis: urticaria) 0: 1, diet 4 (Leymus chinensis: urticaria: urticaria 1: 1), diet 4 (Leymus chinensis: urticaria 1: 1: 1). The dry matter digestibility and organic matter digestibility of three groups were 30 days. The digestibility of crude protein was significantly lower than that of the two groups, but there was no significant difference at 60d, the digestibility of NDF in the fourth group was significantly higher than that in the second group at 30 d and 60 d, and the concentration of ammonia nitrogen in rumen fluid of the 3 groups was significantly higher than that of the control group at 30 d and 60 d. The concentration of total VFA in other groups was significantly lower than that in other groups, and the ratio of ethylene-C was significantly higher than that of group 2, and the bacterial protein in rumen fluid of group 3 was lower than that of group 2 at 30 days. However, there was no significant difference in total microbial protein content and pH among the three groups. The results showed that the apparent digestibility of feed nutrients and rumen fermentation parameters were not affected when the ratio of urticaria to Leymus chinensis in diet was 1: 1, and the nutrient digestibility and rumen fermentation parameters were not affected when the ratio of urticaria to Leymus chinensis was 1: 1. And it can improve the digestibility of fiber to some extent.
【作者单位】：扬州大学动物科学与技术学院;中国农业科学院草原研究所;江苏省泗阳县畜牧兽医站;
【基金】：自然科学基金项目(31402119) 江苏省农业三新工程项目(SXGC[2015]281) 中央级公益性科研院所基本科研业务费专项(1610332015013)
【分类号】：S826.5

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