品种对肉兔断奶后窝生长性状的影响  

Influence of breed on postweaning litter growth and litter feed efficiency of meat rabbits

作　　者：张翔宇[1] 李丛艳[1] 邝良德[1] 郑洁[1] 张翠霞[1] 

机构地区：[1]四川省畜牧科学研究院,四川成都610011

出　　处：《草业学报》2013年第1期323-327,共5页Acta Prataculturae Sinica

基　　金：农业部国家兔现代农业产业技术体系(CARS-44-B-4);四川省畜禽良种繁育专项(SASA2009YZ005);四川省畜禽育种攻关课题(2006YZGG-17);四川省科技支撑项目(09ZC1719)资助

摘　　要：本研究旨在明确影响肉兔断奶后窝生长性状和料肉比的重要因素。利用一般线性模型分析了来自5个不同肉兔品种(新西兰白兔,加利福尼亚兔,比利时兔,青紫蓝兔和福建黄兔)的909只173窝肉兔断奶后窝生长和料肉比性状。结果表明,品种和断奶数对断奶窝重(5周龄窝重),窝增重,窝上市体重(10周龄窝重),个体平均上市体重,窝采食量和料肉比的影响极显著(P<0.01)。出生月份对窝采食量影响极显著(P<0.01),对断奶窝重和窝上市体重的影响显著(P<0.05)。比利时兔的断奶窝重、窝增重、窝上市体重、窝采食量和平均上市体重显著高于其他品种,而福建黄兔的上述5项指标显著低于其他品种(P<0.05)。断奶数与断奶窝重、窝采食量、窝增重、窝上市体重和料肉比的回归系数为正且显著。品种、断奶数和出生月份是影响肉兔断奶后窝性状和料肉比的重要因素。本研究的结果为将比利时兔作为杂交的终端父本提供重要依据。The major factors influencing post-weaning litter growth and litter feed efficiency were analyzed with the General Linear Model（GLM） using 909 meat rabbits,from 173 litters representing 5 breeds（New Zealand White,Californian,Flemish Giant,Chinchilla,and Fujian Yellow）.Breed and number weaned per litter had a significant effect on litter weaning weight at 5 weeks,litter weight gain,litter market weight at 10 weeks,average market weight,litter feed intake,and litter feed efficiency（P〈0.01）.Month of birth had a significant（P〈0.01） difference on litter feed intake and on litter weaning weight and litter market weight（P〈0.05）.Litter weaning weight,litter weight gain,litter market weight and average market weight were heavier and litter feed intake was higher in Flemish Giant litters than in other breed litters（P〈0.05）.However,the five traits mentioned above were lower in Fujian Yellow litters than in other breed litters.The overall linear covariate of litter size at weaning was related positively to litter weaning weight,litter feed intake,litter weight gain,litter feed efficiency and market weight at 10 weeks and regressions were significantly different（P〈0.01）.The main effects of breed,number weaned per litter and month of birth were important sources of variation for post-weaning litter traits and litter feed efficiency.The results provide evidence in support of using Flemish Giant as a terminal sire breed.

关 键 词：生长 品种差异 断奶数 料肉比 环境效应 

分 类 号：S829.1[农业科学—畜牧学]