| 杜蒙羊肉用性能活体检测及屠宰性能对比分析 |
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| 引用本文： | 特日格勒,何辉杰,何小龙,陈大勇,付绍印,达赖,李华,刘永斌.杜蒙羊肉用性能活体检测及屠宰性能对比分析[J].畜牧与饲料科学,2022,43(1):104-108. |
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| 作者姓名： | 特日格勒 何辉杰 何小龙 陈大勇 付绍印 达赖 李华 刘永斌 |
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| 作者单位： | 1.内蒙古自治区农牧业科学院,内蒙古 呼和浩特 010031; 2.内蒙古赛诺种羊科技有限公司,内蒙古 乌兰察布 011800; 3.内蒙古中泰牧业有限公司,内蒙古 乌兰察布 011800 |
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| 基金项目： | 中央引导地方科技发展专项资金项目;内蒙古自治区科技重大专项(2020ZD0003);财政部和农业农村部:国家现代农业产业技术体系资助(CARS-38)。 |
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| 摘 要： | 目的] 评价杜蒙羊的肉用性能、屠宰性能及肉品质。方法] 选取60只杜蒙羊,公母各半,于5月龄时利用超声波背膘检测仪对羊只进行活体肉用性能检测,于6月龄时对羊只进行屠宰,测定主要屠宰性能指标以及肉品质和安全性评价指标;对杜蒙羊公羊和母羊的活体肉用性能指标、主要屠宰性能指标、肉品质和安全性评价指标进行统计学分析和比较。结果] 杜蒙羊活体肉用性能指标检测结果表明,公羊的腰肌厚度和眼肌面积显著（P<0.05）大于母羊,背膘厚度与母羊差异不显著（P>0.05）;屠宰后肉用性能指标测定结果表明,公羊的背脂厚和眼肌面积显著（P<0.05）大于母羊。屠宰性能指标测定结果表明,杜蒙羊公羊的胴体重、净肉重、宰前活重均显著（P<0.05）高于母羊,公羊的屠宰率、胴体净肉率高于母羊,但无显著（P>0.05）差异;母羊的大腿骨重、小腿骨重、大腿骨长、小腿骨长均显著（P<0.05）低于公羊,公羊和母羊的4个骨指标两两之间呈正相关,大腿骨重和小腿骨重更接近线性相关。肉品质和安全性评价指标测定结果表明,杜蒙羊公羊的肌内脂肪含量显著（P<0.05）低于母羊;公羊的胴体肌肉水分含量与母羊差异不显著（P>0.05）;公羊和母羊肌肉中的铅、铬、汞、砷元素含量均符合《农产品安全质量 无公害畜禽肉安全要求》（GB 18406.3—2001）,母羊肌肉中的铬含量和汞含量显著（P<0.05）低于公羊。结论] 杜蒙羊公羊的活体肉用性能和屠宰性能优于母羊,母羊的肉品质优于公羊。
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| 关 键 词： | 杜蒙羊 肉用性能 屠宰性能 肉品质 |
| 收稿时间： | 2021-09-02 |
Evaluation of Live Meat Performance and Slaughter Performance of Dumeng Mutton Sheep |
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| Terigele,HE Hui-jie,HE Xiao-long,CHEN Da-yong,FU Shao-yin,Dalai,LI Hua,LIU Yong-bin.Evaluation of Live Meat Performance and Slaughter Performance of Dumeng Mutton Sheep[J].Animal Husbandry and Feed Science,2022,43(1):104-108. |
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| Authors: | Terigele HE Hui-jie HE Xiao-long CHEN Da-yong FU Shao-yin Dalai LI Hua LIU Yong-bin |
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| Institution: | 1. Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China; 2. Inner Mongolia Sainuo Sheep Breeding Technology Co.,Ltd.,Ulanqab 011800,China; 3. Inner Mongolia Zhongtai Animal Husbandry Co.,Ltd.,Ulanqab 011800,China |
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| Abstract: | Objective] To evaluate the meat performance, slaughter performance, and meat quality of Dumeng mutton sheep. Method] A total of 60 Dumeng mutton sheep, half male and half female, were chosen. The live meat performance of the experimental sheep was assessed with ultrasonic backfat tester at the age of 5 months, and they were slaughtered at the age of 6 months to evaluate the parameters associated with slaughter performance, meat quality and edible safety. Furthermore, the differences in indicators of live meat performance, slaughter performance, meat quality and edible safety between ewes and rams were statistically analyzed and compared. Result] In terms of live meat performance, the rams had significantly （P<0.05） higher psoas muscle thickness and eye muscle area than the ewes, while no significant （P>0.05） difference in backfat thickness between rams and ewes was observed. The backfat thickness and eye muscle area of the rams measured after slaughter were significantly （P<0.05） higher than those of the ewes. The carcass weight, net meat weight, and live weight before slaughter of the rams were significantly （P<0.05） higher in comparison to those of the ewes. While the rams had higher slaughter rate and carcass net meat rate than the ewes, no statistical differences （P>0.05） were found. The thigh bone weight, calf bone weight, thigh bone length, and calf bone length of the ewes were significantly （P<0.05） lower compared with those of the rams. For both rams and ewes, there were positive correlations between the four bone indexes when pairwisely compared, and the thigh bone weight and calf bone weight were more prone to be linearly correlated. The rams had significantly （P<0.05） lower intramuscular fat content than the ewes, and there was no significant （P>0.05）difference in moisture content of carcass muscle between rams and ewes. The muscular contents of lead, chromium, mercury and arsenic of the rams and the ewes were all in line with the edible safety requirements listed in China′ s national standard of Safety Qualification for Agricultural Product （GB 18406.3-2001）. The ewes had significantly （P<0.05） lower muscular contents of chromium and mercury than the rams. Conclusion] The live meat performance and slaughter performance of Dumeng mutton rams are superior to those of the ewes, while ewes have better meat quality. |
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| Keywords: | Dumeng mutton sheep meat performance slaughter performance meat quality |
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