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Position: Home > Articles > Study on protein requirements of 6~7 month-old Jinjiang cattle Feed Industry 2012,33 (18) 47-50

6~7月龄锦江黄牛蛋白质需要量研究

作  者:
王微;瞿明仁;游金明;欧阳克蕙;宋小珍
单  位:
江西农业大学动物科技学院
关键词:
锦江黄牛;蛋白质;需要量
摘  要:
选用45头6月龄体重为(225.76±13.44)kg的健康锦江黄牛,分为5个处理,每个处理3个重复,每个重复3头牛。采用单因素变量设计,按照我国《肉牛饲养标准》(2004)中225 kg肉牛,日增重为0.6 kg时蛋白质需要量的60%、80%、100%、120%、140%5个蛋白质水平配制试验日粮。结果表明,高蛋白日粮有利于提高锦江黄牛日增重;锦江黄牛在6~7月龄时期,维持的蛋白质需要量为246.65 g/d,试牛平均每千克增重的蛋白质需要量为528.79 g/d;锦江黄牛在6~7月龄时期,蛋白质需要量(RCP,g/d)可依照下式计算:RCP=528.79△W+246.65;可消化粗蛋白(RDCP,g/d)可按照下式计算:RDCP=453.86△W+211.70。
译  名:
Study on protein requirements of 6~7 month-old Jinjiang cattle
作  者:
Wang Wei,Qu Mingren,You Jinming,Ouyang Kehui,Song Xiaozhen
关键词:
Jinjiang cattle;protein;requirement
摘  要:
Forty-five healthy Jinjiang cattle at the age of 6 months weight(225.76±13.44) kg were selected to study the protein requirements and metabolism rules.All tested cattle were divided into five treatments,each treatment had three replications,each replication had three cattle.Protein single factor variable design was used in this study.Dietary nutrient levels were made according to the Feeding Standard of Beef cattle(2004),based on the level at 225 kg weight,0.6 kg daily weight gain,five levels as follows:60%,80%,100%,120%,140%.The results showed that high protein level was advantageous to the dailygain of the tested beef cattle.Protein requirements of Jinjiang cattle of 6~7 month-old can be estimated by the factorial models as follows:RCP=528.79△W+246.65;digestive protein requirements of Jinjiangcattle of 6~7 month-old can be estimated by the factorial models as follows:RDCP=453.86△W+211.70.

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