不同育肥模式对关岭黄牛增重与产肉性能的影响  

Influence of Different Fattening Models on Weight Gain and Meat Production Performance of Guanling Yellow Cattle

作　　者：陈奎冲 CHEN Kuichong(Agricultural Service Center,Yongning Town,Guanling Buyei and Miao Autonomous County,Anshun 561302,Guizhou China)

机构地区：[1]贵州省安顺市关岭布依族苗族自治县永宁镇农业服务中心,贵州安顺561302

出　　处：《饲料博览》2024年第2期15-18,共4页Feed Review

摘　　要：为探究不同育肥模式对关岭黄牛增重与产肉性能的影响,试验使用180日龄的60头关岭黄牛,体重为(200±3)kg,随机分为A和B两组,每组30头关岭黄牛,每组5个重复,每个重复6头。A组从210日龄至出栏期间全程饲喂育肥期全混合日粮采用直线育肥;B组210~360日龄期间饲喂育成期全混合日粮,采用阶段育肥,361日龄后开始饲喂育肥期全混合日粮。计算阶段关岭黄牛的平均日增重,并对540日龄出栏的关岭黄牛的产肉性能指标进行检测。试验结果表明:在210~360日龄,黄牛育成期时,A组的平均日增重高于B组(P<0.05);361~540日龄,黄牛育肥期时,B组平均日增重高于A组(P>0.05)。此外,B组黄牛的宰前活重、胴体重量、净肉重、净肉率、骨重和骨头率均略高于A组(P>0.05)。综合结果表明,阶段育肥模式比直线育肥模式更适合提高关岭黄牛的增重和肉质表现。因此,建议在关岭黄牛养殖中优先考虑采用阶段育肥模式。To investigate the effect of different fattening modes on the performance and meat performance of Guanling yellow cattle,this study utilized 60 Guanling yellow cattle aged 180 days with a weight of(200±3)kg.They were randomly divided into two groups,labeled as Group A and Group B,each comprising 30 Guanling yellow cattle.Within each group,there were five replicates,with six heads per replicate.Group A was fed a full mixed ration throughout the fattening period from 210 days of age until slaughter,employing a linear fattening mode.On the other hand,Group B was fed a full mixed ration during the growth period from 210 to 360 days of age using a staged fattening mode,followed by a switch to the full mixed ration for the fattening period after 361 days of age.The average daily weight gain of Guanling yellow cattle during the staged fattening period was calculated,and meat performance indicators of Guanling yellow cattle slaughtered at 540 days of age were examined.The experimental results revealed that the weight gain performance of Groups A and B varied across different age segments.The test results showed that at 210-360 days of age,when the yellow cattle were in the nursery period,the average daily weight gain of Group A was higher than that of Group B(P<0.05);and at 361-540 days of age,when the yellow cattle were in the fattening period,the average daily weight gain of Group B was higher than that of Group A(P>0.05).In addition,the pre-slaughter live weight,carcass weight,net meat weight,net meat percentage,bone weight and bone percentage of yellow cattle in Group B were slightly higher than those in Group A (P>0.05). In conclusion, theresults suggested that the staged fattening mode was more suitable than the linear fattening mode for improving thegrowth and meat quality performance of Guanling yellow cattle. Therefore, it is recommended to prioritize theadoption of the staged fattening mode in Guanling yellow cattle breeding.

关 键 词：育肥模式 关岭黄牛 增重 产肉性能 

分 类 号：S815.4[农业科学—畜牧学]