圈养努比亚山羊早期断奶试验  

Early weaning test of captive Nubian goat

作　　者：莫家会 庄海燕 李桂秋 何立贵 梁春意 孟观范 MO Jiahui;ZHUANG Haiyan;LI Guiqiu;HE Ligui;LIANG Chunyi;MENG Guanfan(Baipeng Breeding Stock Fann,Guangxi Zhuang Autonomous Region,Liuzhou 545102,China)

机构地区：[1]广西壮族自治区百朋种畜场,广西柳州545102

出　　处：《黑龙江畜牧兽医》2021年第3期79-81,共3页Heilongjiang Animal Science And veterinary Medicine

基　　金：广西壮族自治区科学技术厅重点研发计划项目(桂科AB18294030);柳江县科学研究与技术开发计划项目(201606)。

摘　　要：为了探讨适合圈养努比亚山羊断奶的日龄,试验选取断奶日龄分别为50,60,85日龄的羔羊各15只(公羔羊8只、母羔羊7只),按照断奶日龄分成3组,断奶后在相同饲养管理和营养水平下饲养,测定断奶后日增重、料肉比、每千克增重成本及利润等指标,根据这些测定结果确定最佳的断奶日龄。结果表明:断奶日龄对断奶后日增重、料肉比、每千克增重成本、利润有一定的影响,其中60日龄断奶的羊只日增重最高,为140.44 g/只,分别比50,85日龄提高22.88 g/只(P<0.05)、13.77 g/只(P>0.05);料肉比最低,为9.03,分别比50,85日龄降低1.21,2.58(P>0.05);每千克增重成本最低,为17.37元,分别比50,85日龄减少2.99,2.68元(P>0.05);利润水平高,为2 714.33元/组,分别比50,85日龄断奶的增加679.94,495.53元(P<0.05)。说明圈养努比亚山羊的最佳断奶日龄为60日龄。In order to study the weaning age suitable for captive Nubian goats,15 lambs(8 male and 7 female) with weaning age of 50, 60 and 85 days were selected and divided into three groups according to the weaning age. After weaning, the lambs were given the same feeding management and nutrition level, and their daily gain, feed to meat ratio, cost and profit per kilogram weight gain were measured. According to these results, the best weaning age was determined. The results showed that the weaning age had a certain impact on the daily weight gain, feed/meat ratio, cost and profit per kilogram weight gain. Among them, the daily gain of weaned sheep at 60 days old was the highest, reaching 140.44 g/sheep,which 22.88 g/sheep(P<0.05) and 13.77 g/sheep(P>0.05) higher than that of 50 and 85 days old sheep, respectively. The feed to meat ratio of weaned sheep at 60 days old was lowest, reaching 9.03,which was 1.21 and 2.58 lower(P>0.05)than that of 50 and 85 days old sheep, respectively. The cost per kilogram weight gain of weaned sheep at 60 days old was lowest, reaching 17.37 yuan, which was 2.99 yuan and 2.68 yuan lower(P>0.05)than that of 50 and 85 days old respectively.The profit level of weaned sheep at 60 days old was the highest, reaching 2 714.33 yuan, which was 679.94 yuan and 495.53 yuan higher(P<0.05) than that of 50 and 85 days old respectively.The results indicated that the best weaning age of captive Nubian goat was 60-days-old.

关 键 词：努比亚山羊 早期断奶 日增重 饲料利用率 增重成本 利润 

分 类 号：S826[农业科学—畜牧学]