北京鸭Z_2系第六周体重与屠体性能及胸肌肌内脂肪含量的相关分析  

Correlation Analysis of Body Weight with Breast Intramuscular Fat and Carcass Traits in the Pekin Duck Z_2 Stain at Six-Week Age

作　　者：杨晓刚[1] 侯水生[2] 刘小林[3] 黄苇[2] 杨立霞[1] 高明华[1] 

机构地区：[1]呼伦贝尔学院生命科学与化学学院,内蒙古呼伦贝尔021008 [2]中国农业科学院北京畜牧兽医研究所动物营养学国家重点实验室,北京100094 [3]西北农林科技大学动物科技学院,陕西杨凌712100

出　　处：《湖北农业科学》2013年第21期5262-5263,5267,共3页Hubei Agricultural Sciences

基　　金：现代水禽产业技术体系建设专项资金资助项目(CARS-43)

摘　　要：对100只北京鸭Z2系公母鸭第六周体重与屠体性能及胸肌肌内脂肪含量的关系进行了相关分析。结果表明,Z2系母鸭第六周体重与胸肌肌内脂肪含量呈极显著强正相关(P<0.01),相关系数为0.56;公母鸭第六周体重均与屠体重、全净膛重、胸肌重、胸肌率、皮脂重、皮脂率呈极显著强正相关(P<0.01)。综合试验结果可得出,由于北京鸭Z2系公母鸭第六周体重与屠体性能及胸肌肌内脂肪含量相关程度不同,在北京鸭选育过程中,要针对公母鸭分别制定育种目标,以加快北京鸭的选育速度,同时尽量避免肌内脂肪含量的降低。The weight, carcass traits and breast intramuscular fat of 100 male and female ducks were measured at six weeks of age to analyze the correlation between the body weight trait and carcass traits and breast intramuscular fat（IMF） in Z2 stain Pekin duck. The results showed that the body weight at six week age had significantly positive correlation with breast IMF in male ducks, with correlation coefficient of 0.56（P0.01）. While both male and female ducks showed significant corre- lation between body weight and carcass traits such as carcass weight, eviscerated weight, breast muscle weight, breast muscle rate, subcutaneous fat weight and subcutaneous fat weight rate（P0.01）. It indicated that the correlation coefficients of body weight trait with carcass traits and breast IMF were various between male and female in Pekin duck Z2 strain. It was neces- sary to establish different breeding projects for different genders in the Pekin duck breeding process to accelerate the breeding process and avoid the declining of breast intramuscular fat content.

关 键 词：北京鸭Z2系 肌内脂肪 屠体性能 体重 相关分析 

分 类 号：S834[农业科学—畜牧学]