摘要
试验旨在研究日粮不同精粗比对思南黄杂交肉牛生产性能与血液生化指标的影响,选择体重相近的12头思南杂交肉牛随机分为4组。A、B、C、D组精粗比分别为3:7、4:6、5:5、6:4。结果表明:C组和D组末重、增重和平均日增重极显著高于A组和B组(P<0.01);C组的平均日采食量和料重比显著高于A组和B组(P<0.05)。C组谷丙转氨酶(ALT)显著高于A组和B组(P<0.05);C组谷草转氨酶(AST)显著高于B组(P<0.05),极显著高于A组(P<0.01)。研究表明,日粮精粗比5:5时思南杂交肉牛的生长性能较佳,平均日增重可达1.59 kg/d。
The paper was to study the effect of different concentrate to coarse ratio on production performance and blood biochemical indices on Sinan crossbred beef cattle.Twelve Sinan crossbred beef cattles with approximate weight were randomly divided into four groups,and the ratio of concentrate to forage of group A,B,C and D were 3:7,4:6,5:5,6:4 respectively.The results showed that the final weight,weight gain and average daily gain of group C and D were significantly higher than those of group A and B(P<0.01).The average daily feed intake and feed weight ratio of group C were significantly higher than those of group A and group B(P<0.05).The ALT of group C was significantly higher than that of groups A and B(P<0.05),the AST of group C was significantly higher than that of group B(P<0.05),and it was extremely significantly higher than that of group A(P<0.01).The research indicated that the growth performance of Sinan hybrid beef cattle at a dietary ratio of 5:5 was better,with an average daily gain of 1.59 kg/d.
作者
段俊红
杨帆
侯芳
任明晋
郭靖
吴高奇
DUAN Jun-hong;YANG Fan;HOU Fang;REN Ming-jin;GUO Jing;WU Gao-qi
出处
《饲料研究》
CAS
北大核心
2020年第12期10-13,共4页
Feed Research
基金
贵州省科技支撑计划项目“思南黄牛保种选育及开发利用研究(项目编号:黔科合支撑(2018)2262)”
铜仁市基础科学研究计划“日粮不同精粗比对肉牛育肥效果的影响(项目编号:铜市科研(2019)12-11号)”。
关键词
精粗比
生产性能
血液生化指标
杂交肉牛
concentrate to coarse ratio
production performance
blood biochemical indices
crossbred beef cattle