高、低肌内脂肪含量的贵州黄鸡的肉品质研究  

Study on meat quality of Guizhou yellow chickens with high and low intramuscular fat content

作　　者：王小亚 唐宏 陈大海 林家栋[1,2,3,4] 张芸 张福平[1,2,3,4] WANG Xiao-ya;TANG Hong;CHEN Da-hai;LIN Jia-dong;ZHANG Yun;ZHANG Fu-ping

机构地区：[1]贵州大学高原山地动物遗传育种与繁殖教育部重点实验室,贵州贵阳550025 [2]贵州省动物遗传育种与繁殖重点实验室,贵州贵阳550025 [3]贵州大学动物科学学院,贵州贵阳550025 [4]贵州大学科研鸡场,贵州贵阳550025 [5]贵州省畜禽遗传资源站,贵州贵阳550001

出　　处：《饲料研究》2022年第15期102-105,共4页Feed Research

基　　金：贵州省科技计划项目(项目编号:黔科合支撑[2019] 2288号)。

摘　　要：试验旨在比较高、低肌内脂肪(IMF)含量的贵州黄鸡的屠宰性能、肉品质、肌纤维特性以及脂肪酸含量的差异。选取相同饲养环境的雌性贵州黄鸡30只,于120日龄屠宰,测定其肌内脂肪含量、屠宰性能、肉品质、脂肪酸及肌纤维特性,根据其IMF含量分为高IMF组和低IMF组(IMFH组和IMFL组)。结果显示:IMFL组鸡的腹脂率极显著高于IMFH组(P<0.01),胸肌剪切力极显著高于IMFH组(P<0.01)。IMFH组与IMFL组鸡的胸肌中共检出23种脂肪酸,IMFL组鸡不饱和脂肪酸含量显著高于IMFH组(P<0.05),亚油酸和花生三烯酸含量显著低于IMFH组(P<0.05),花生四烯酸含量极显著高于IMFH组(P<0.01)。IMFL组鸡胸肌的肌纤维直径极显著高于IMFH组(P<0.01),肌纤维密度极显著低于IMFH组(P<0.01)。研究表明,贵州黄鸡的肌内脂肪含量高,肉品质较好,饱和脂肪酸含量丰富,肌纤维致密,肉质营养丰富和口感极佳。The study was to compare the slaughter performance, meat quality, muscle fiber properties and fatty acid content of Guizhou yellow chickens with high and IMF content. Thirty female Guizhou yellow chickens in the same rearing environment were selected and slaughtered at 120 d, and the intramuscular fat content, slaughter performance, meat quality, fatty acid and muscle fiber characteristics of chickens were determined. According to IMF content, they were divided into high IMF group and low IMF group(IMFH group and IMFL group). The results showed that the abdominal fat rate of chickens in IIMFL group was extremely higher than that in IMFH group(P<0.01), and the shear force of pectoral muscle was extremely higher than that in IMFH group(P<0.01). A total of 23 fatty acids were detected in chest muscles of IMFH group and IMFL group. The content of unsaturated fatty acids in IMFL group was significantly higher than that in IMFH group(P<0.05), and the content of linoleic acid and arachidonic acid were significantly lower than those in IMFH group(P<0.05), and the amount of arachidonic acid was extremely higher than that in IMFH group(P<0.01). The muscle fiber diameter of the pectoralis muscle in IMFL group was extremely higher than that in IMFH group(P<0.01),and the muscle fiber density was significantly lower than that in IMFH group(P<0.05). The study indicates that Guizhou yellow chicken has high intramuscular fat content, better meat quality, rich saturated fatty acid content, dense muscle fibers, and excellent meat nutrition and taste.

关 键 词：贵州黄鸡 肌内脂肪 屠宰性能 脂肪酸 肉品质 

分 类 号：S831[农业科学—畜牧学]