摘要
This study aimed to study the germplasm characteristics of Tibetan goat distributed in Sichuan. Three male and three female goats of twelve-month-old Ti-betan goat were selected, and they were slaughtered for analysis of slaughter per-formance, muscle quality and muscle nutrients. The results showed that the pre-slaughter body weights, dressing percentages, meat percentages and carcass meat production rates of male and female Tibetan goats were （14.33±1.53） and （12.50±2.18） kg, （42.11±5.26）% and （43.85±4.51）%, （31.34±3.36）% and （32.84±3.16）%, and （72.34±0.54）% and （72.30±0.78）%, respectively. There were smal differences in car-cass size, carcass segmentation, muscle fiber properties, muscle quality, muscle nu-tritional composition, muscle minerals contents and muscle heavy metals contents between male and female Tibetan goats. A total of 18 kinds of amino acids were detected in the muscle of male and female Tibetan goats. The EAA/TAA ratios and EAA/NEAA ratios of male and female Tibetan goats were （39.18＆#177;0.38）%and （38.70±0.72）%, and （64.31±1.03）% and （63.21±1.92）%, respectively.
旨在了解分布于四川的藏山羊的种质特性,试验选择12月龄的藏山羊公、母羊各3只进行屠宰,测定其屠宰性能、肌肉品质及肌肉营养成分等。结果表明,1公、母羊的宰前体重分别为(14.33±1.53)和(12.50±2.18)kg,屠宰率分别为(42.11±5.26)%和(43.85±4.51)%,净肉率分别为(31.34±3.36)%和(32.84±3.16)%,胴体产肉率分别为(72.34±0.54)%和(72.30±0.78)%;2胴体体尺、胴体分割、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;3公、母羊肌肉中共检测到18种氨基酸,EAA/TAA分别为(39.18±0.38)%和(38.70±0.72)%,EAA/NEAA分别为(64.31±1.03)%和(63.21±1.92)%。
