玉米芯+芦苇草不同组合对西杂肉牛生产性能及血液生化指标的影响
Effects of different combinations of corn cob and reed grass on production performance and blood biochemical indicators of Western crossbred beef cattle
张俊丽 1高旭红 1梁小军 1马秀明2
作者信息
- 1. 宁夏农林科学院动物科学研究所,宁夏银川 750002
- 2. 银川市三鑫绿源肉牛养殖专业合作社,宁夏银川 750002
- 折叠
摘要
为研究日粮中添加不同比例玉米芯、芦苇草对西门塔尔杂代肉牛生长性能、血清生化指标的影响,试验选择体重500 kg左右的健康西门塔尔杂交肉牛32头,随机分为4组,每组8头,每头为一个重复.对照组为添加 4％玉米芯+4％芦苇草基础TMR日粮,试验1组、2组、3组基础TMR日粮中玉米芯和芦苇组合比例分别为8％玉米芯+4％芦苇草、6％玉米芯+6％芦苇草、4％玉米芯+8％芦苇草,预饲期15 d,正式期60 d.结果表明:试验1组、2组、3组平均日增重分别比对照组提高了 27.03％、3.60％、22.52％(P＞0.05),平均料重比分别比对照组降低了 16.67％、12.34％、22.05％(P＞0.05).试验2组尿素氮含量分别比对照组、1组、3组降低了 28.16％、27.67％、35.20％,差异显著(P＜0.05);试验2组甘油三酯(TG)含量比3组降低了 43.90％(P＜0.05);结果提示,在肉牛育肥后期饲粮中添加适量玉米芯和芦苇草,可一定程度提高西门塔尔杂交肉牛平均日增重,降低料重比,促进机体对蛋白质的吸收代谢,可降低饲料成本,提高养殖效益,建议全混合日粮中添加4％～8％玉米芯+4％～6％芦苇草为宜.
Abstract
This experiment was conducted to study the effects of dietary supplementation of corn cob and reed grass with different proportions on growth performance and serum biochemical indices of Simmental hybrid beef cattle.Thirty-two healthy Simmental crossbred beef cattle with body weight of about 500 kg were randomly divided into 4 groups with 8 cattle per group and one replicate per head.The control group was supplemented with 4％corn cob+4％reed grass basal TMR diet,and the combination ratio of corn cob and reed grass in the basal TMR diet of test groups 1,2 and 3 were 8％corn cob+4％reed grass,6％corn cob+6％reed grass,4％corn cob+8％reed grass,respectively.The pre-feeding period was 15 days and the formal period was 60 days.The results showed that the average daily gain of group 1,group 2 and group 3 increased by 27.03％,3.60％and 22.52％(P＞0.05)compared with the control group,respectively,and the average feed to weight ratio decreased by 16.67％,12.34％and 22.05％(P＞0.05)compared with the control group.The urea nitrogen content in the experimental group 2 decreased by 28.16％,27.67％and 35.20％compared with the control group,group 1 and group 3,respectively,with significant differences(P＜0.05);The triglyceride(TG)content in group 2 decreased by 43.90％compared with group 3(P＜0.05);The results suggested that adding appropriate amount of corn cob and reed grass in the diets of beef cattle in the late fending period could improve the average daily gain of Simmental hybrid beef cattle to some extent,reduce the ratio of feed to gain,promote the absorption and metabolism of protein,reduce feed cost and improve breeding efficiency.It was recommended to add 4％～8％corn cob and 4％～6％reed grass in the total mixed diet.
关键词
芦苇草/玉米芯/西杂肉牛/生产性能/生化指标/效益Key words
reed grass/corncob/Xiza beef cattle/production performance/biochemical index/benefit引用本文复制引用
基金项目
宁夏农林科学院农业高质量发展和生态保护科技创新示范项目(NGSB-2021-12-11)
国家现代农业(肉牛牦牛)产业技术体系资助(CARS-37)
自治区重点研发计划(2022BBF02035)
出版年
2024
NETL
NSTL
万方数据