云南部分地方鸡肌肉品质的比较研究  

Comparison on meat quality characteristics of partial Yunnan native chickens

作　　者：刘丽[1] 贾俊静[1] 李琦华[1] 余红心[1] 陈宝定[1] 柴艳[1] 文生萍[1] 

机构地区：[1]云南农业大学省动物营养与饲料重点实验室

出　　处：《中国饲料》2008年第13期15-18,23,共5页China Feed

基　　金：云南省自然基金项目资助;云南农业大学博士启动经费资助(2006C0033Q)

摘　　要：本研究旨在探讨日粮蛋白质水平对30～60日龄的云南部分地方鸡肉品质的影响。选取平均体重接近的云南茶花鸡、武定鸡、盐津乌鸡为试验对象,以土杂鸡和AA肉鸡做对照,各品种鸡96只,随机分为3组,分别饲喂3种不同的蛋白质水平日粮(CP水平分别为17.50%、18.00%和19.50%)。试验结果表明:(1)品种对鸡肌肉组织学特性的影响差异显著(P<0.05),地方鸡的肌纤维直径显著低于土杂鸡和AA肉鸡,肌纤维密度则相反。(2)日粮对肌肉组织学特性的影响不大(P>0.05),但日粮Ⅱ的胸肌肌纤维直径和密度略高于其他两个日粮。(3)鸡肉胸肌理化特性在不同品种间差异显著(P<0.05),地方鸡尤其是茶花鸡嫩度显著高于土杂鸡和AA肉鸡(P<0.05)。(4)饲喂高蛋白质水平日粮的鸡肉品质优于低蛋白质水平日粮的,但差异不显著(P>0.05)。综上所述,地方鸡的肌肉品质优于AA肉鸡和土杂鸡,随着日粮蛋白质水平的提高,肉质有改善的趋势。To investigate effects of breeds （genotypes） and diets nutrient levels on the meat quality performance of Yunnan native chicks during 30 - 60 days old, a total of 480 chicks of five breeds （Chahua chickens,Wuding chickens, Yanjing chickens,Hybrid chickens and AA broilers） were assigned to feed on three dietary treatments （CP： 17.50 %, 18.00 % and 19.50 %） with arranging three groups randomly.The results showed： （1）There were significant differences between histolgic characteristic of muscle and the Yunnan native chicks had smaller diameter of breast and limb muscle fiber （P 〈 0.05） and larger density of breast muscle fiber （P 〈 0.05） than that of Hybrid chickens and AA broilers.（2） There were no significant differences on histolgic characteristics of muscle in diets with different protein levels,and the breast muscle fiber diameter and density of the diet Ⅱ were higher than the other two diets （P 〉 0.05）. （3）There were significant differences from the chest muscle meat quality between five chicks and the tenderness of Yunnan native chicks obviously higher than that of Hybrid chickens and AA broilers （P 〈 0.05）.（4）The chest muscle meat quality of the chicks feeding higher diets were better than that of low protein diets （P 〉 0.05）.The results suggested that meat quality characteristics of Yunnan native chicks （Chahua chickens,Wuding chickens,Yanjing chickens） were better than that of Hybrid chickens and AA broilers and increasing protein levels,the chest muscle meat quality and the muscle tenderness were improved.

关 键 词：云南地方鸡 肌肉理化特性 肌肉组织学特性 

分 类 号：S816.32[农业科学—饲料科学]