不同月龄南充黑山羊的屠宰性能及肉质性状研究  

Study on slaughter performance and meat quality characteristics of Nanchong black goats at different months of ages

作　　者：王怀禹[1] 熊荣园 樊平[1] 龙冬梅 魏玲[1] WANG Huaiyu;XIONG Rongyuan;FAN Ping;LONG Dongmei;WEI Ling

机构地区：[1]南充职业技术学院,四川南充637000

出　　处：《饲料研究》2025年第2期165-170,共6页Feed Research

基　　金：南充市应用技术研究与开发专项项目(项目编号:22YYJCYJ0073)。

摘　　要：试验旨在探究南充黑山羊在不同月龄的屠宰性能和肉质性状变化规律。试验选取18只不同月龄的南充黑山羊,测定其在不同月龄的生长性能、屠宰性能、肉品质及羊肉加工与感官品质。结果显示,随着月龄的增加,南充黑山羊的体重、体长、体高和胸围,以及胴体重、净肉重、骨重均显著增加(P<0.05),屠宰率和净肉率呈现上升趋势。6~24月龄的屠宰率从39.57%提高至54.37%,净肉率从31.61%提高至42.54%,肉骨比从4.03提高至4.42。12月龄的黑山羊肉粗蛋白和粗脂肪含量较高,色泽鲜红,口感嫩滑,膻味小,背脊肉感官评分最高(90.50分),背脊部滴水损失最高。随着月龄的增加,黑山羊快/慢肌纤维数量比值下降。24月龄的黑山羊屠宰率最高,但肉质嫩度和口感有所下降。研究表明,12月龄南充黑山羊肉品质较好,适合生产和销售。This experiment aimed to investigate the slaughter performance and meat quality characteristics variation patterns of Nanchong black goats at different months of age.Eighteen goats of varying ages were selected,and their growth performance,slaughter performance,meat quality,processed mutton attributes,and sensory qualities were measured across developmental stages.The results showed that with increasing age,body weight,body length,height,chest circumference,carcass weight,meat yield,and bone weight significantly increased(P<0.05),while slaughter rate and meat percentage demonstrated upward trends.Between 6 and 24 months of age,the slaughter rate improved from 39.57%to 54.37%,meat percentage increased from 31.61%to 42.54%,and the meat-to-bone ratio rose from 4.03 to 4.42.At 12 months of age,the meat exhibited higher crude protein and fat content,bright red color,tender texture,and mild odor.The longissimus dorsi muscle received the highest sensory evaluation score(90.50 points),but also showed the greatest drip loss in the dorsal region.The fast-to-slow twitch muscle fiber ratio decreased with advancing age.Although 24-month-old goats achieved the highest slaughter rate,their meat tenderness and texture declined.The study indicates that 12-month-old Nanchong black goat meat exhibits optimal quality characteristics,making it most suitable for production and market distribution.

关 键 词：南充黑山羊 不同月龄 屠宰性能 肉质性状 

分 类 号：S827[农业科学—畜牧学]