Slaughter Performance, Muscle Quality and Muscle Nutrients of Twelve-month-old Danba Goat  

12月龄丹巴黄羊屠宰性能、肌肉品质及肌肉营养成分研究（英文）

作　　者：杨平贵[1] 周明亮[1] 王燕军 毛进彬 陈明华[1] 阿龙呷 肖文平 庞倩[1] 

机构地区：[1]四川省草原科学研究院,四川成都611743 [2]丹巴县农牧和科技局,四川丹巴626300 [3]甘孜州畜牧站,四川康定626000

出　　处：《Agricultural Science & Technology》2016年第11期2652-2656,共5页农业科学与技术（英文版）

摘　　要：[Objective] The aim was to discuss the resource characteristics of Danba goat. [Method] Three male and three female goats of twelve-month-old Danba goat were selected to slaughter,and their slaughter performance, muscle qulity and mus- cle nutrients were determined. [Result] The pre-slaughter weights, dressing percent- ages, meat percentages and carcass meat production rates of the male and female Danba goats were （25.83±1.04） and （18.50±2.29） kg, （45.18±0.78）% and （38.89± 2.08）%, （33.76±1.4）% and （28.59±1.99）%, and （74.30±0.85）% and （74.08±0.65）%, respectively. The carcass length, carcass hind leg circumstance, carcass hind leg length, lumbar muscle thickness, hind leg meat yield, shoulder muscle yield and breast meat yield of male goats were significantly higher than those of female goats （P〈0.05）, and no significant differenceswere found in other carcass size and carcass segmentation indices between male and female goats （P〉0.05）. There were small differences in muscle fiber properties, muscle quality, muscle nutritional composition, muscle mineral content and muscle heavy metal content between male and female goats （P〈0.05）. A total of 18 kinds of amino acids were detected in the male and female goats. The EAA/TAAs and EANNEAAs of male and female goats were （39.56±0.26）% and （39.48±0.66）%, and （65.45±0.71）% and （65.43±1.80）%, respec- tively. [Conclusion] This study will provide the basis for the understanding of the resource characteristics of Danba goat.[目的]探讨丹巴黄羊的资源特性。[方法]选择12月龄丹巴黄羊公、母羊各3只,屠宰并测定其屠宰性能、肌肉品质及肌肉营养成分等指标。[结果](1)公、母羊宰前体重分别为(25.83±1.04)kg和(18.50±2.29)kg,屠宰率分别为(45.18±0.78)%和(38.89±2.08)%,净肉率分别为(33.76±1.4)%和(28.59±1.99)%,胴体产肉率分别为(74.30±0.85)%和(74.08±0.65)%;(2)公羊的胴体长、胴体后腿围、胴体后腿长、腰部肌肉厚、后腿肉重、肩胛肉重和胸下肉重等指标显著高于母羊(P<0.05),其他胴体体尺和胴体分割指标在公、母羊间差异不显著(P>0.05);(3)肌纤维特性、肌肉品质、肌肉营养成分、肌肉矿物质含量及其重金属含量等指标在公、母羊间的差异较小,公羊的a值显著高于母羊(P<0.05);(4)公、母羊肌肉中共检测到18种氨基酸,EAA/TAA分别为(39.56±0.26)%和(39.48±0.66)%,EAA/NEAA分别为(65.45±0.71)%和(65.43±1.80)%。[结论]该研究为丹巴黄羊资源特性的了解提供了依据。

关 键 词：Danba goat Slaughter performance Muscle quality Amino acid 

分 类 号：S827[农业科学—畜牧学]