摘要
目的:本试验旨在研究干稻草对黄牛瘤胃液生理指标的影响。方法:选择6头安有永久性瘘管的健康黄牛,分为两组,对照组饲喂干稻草加精饲料,实验组仅饲喂干稻草,分别在一天的8:00时(上午)、12:00时(中午)、16:00时(下午),连续四天抽取瘤胃液,测定瘤胃液的p H、总酸度、纤毛虫总数和活性、微生物蛋白含量及氨态氮浓度。结果:试验组在下午纤毛虫总数显著(P<0.05)低于上午和中午,在下午总酸度显著(P<0.05)高于上午和下午,p H、纤毛虫活性、微生物蛋白含量及氨态氮浓度差异不显著(P>0.05)。小结:由此可见,采食前的三个时间点中,黄牛瘤胃液生理指标有所波动。
Objective： This experiment was conducted to investigate the effects of dry straw on physiology indices of rumen milieu interne from cattle. Methods： choice six healthy cattle that have a permanent fistula, ivided into two groups, the control group feeded dry straw and concentrate ,the experimental group only feeded dry straw, in the day of 8：00（morning）, 12：0（3 （at noon）, 16：013 （af- ternoon）, were selected and extracted tumor 5astrie juice in four consecutive days, Determinating the pH, total acidity, ciliate activi- ty, microbial protein content and total ammonia nitrogen concentration of rumen fluid.. Results The results showed as follows, the number of total ciliates in the afternoon significantly （P 〈 0. 05 ） lower than in the morning and at noon, total acidity in the afternoon significantly （P 〈 0. 05） higher than in the morning and afternoon. There was not significant （P 〉 0. 05） different in PH, ciliate ac- tivity, microbial protein content and ammonia nitrogen concentration. Summary： It is concluded that in three time points before fee- ded, physiology indices of rumen milieu interne fluctuate in cattle.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
北大核心
2014年第5期12-16,共5页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
国家肉牛产业技术体系专项资金项目(rncytx-38)
关键词
干稻草
黄牛
瘤胃液
生理指标
Dried straw
cattle
rumen juice
physiology indices
