摘要
为比较速生型肉鸡和优质地方鸡种之间肉品质的差异,试验选取速生型AA肉鸡,优质地方鸡种北京油鸡各30只,分别在49日龄、110日龄屠宰测定部分屠宰和肉质性状,结果表明:①AA肉鸡肉质性状和北京油鸡有较大差异,AA肉鸡蒸煮损失、肌纤维指数、肌纤维密度、肌肉剪切力和韧性均显著低于北京油鸡(P<0.01);AA肉鸡滴水损失、肌纤维直径、肌纤维横截面积均显著高于北京油鸡(P<0.01)。②运用主成分分析法从10个肉质指标中提出前4个主成分,累积贡献率超过85%,能够比较准确地反映鸡肉肉质特点。③AA肉鸡屠宰性能优于北京油鸡,AA肉鸡体重、胸肌重、腿肌重、胸肌率、腿肌率均显著高于北京油鸡(P<0.01)。
The study examined carcass traits and meat quality of AA broilers and Beijing fatty chickens. The results showed that： （1）The cook loss,index of myofiber,myofiber density and shear force value of the AA broiler are significant lower than Beijing fatty chicken （P〈0.01/P〈0.05）. The drip loss,diameter of myofiber and myofiber cross section area of AA broilers are significant larger than Beijing fatty chickens （P〈0.01）. （2）Principal components analysis （PCA） showed that percentage of the largest four principal components accumulated contribution had exceeded 85% ,means these four major components represented the major meat quality indexes. （3）There were significant differences for body weight, percentage of breast muscle weight,percentage of thigh muscle weight and percentage of breast muscle between AA broilers and Beijing fatty chickens （P〈0.01）.
出处
《中国家禽》
北大核心
2009年第7期11-14,18,共5页
China Poultry
