| 兴羔肉羊生长发育规律及遗传评估研究 |
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| 引用本文： | 兴羔肉羊生长发育规律及遗传评估研究.兴羔肉羊生长发育规律及遗传评估研究[J].畜牧与饲料科学,2022,43(6):72-76. |
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| 作者姓名： | 兴羔肉羊生长发育规律及遗传评估研究 |
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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 0100312.内蒙古农业大学动物科学学院，内蒙古 呼和浩特 0100183.内蒙古自治区农牧业技术推广中心，内蒙古 呼和浩特 0100114.兴安职业技术学院，内蒙古 乌兰浩特 137400 |
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| 基金项目： | 内蒙古自治区科技计划项目(2021GG0012);内蒙古自治区科技重大专项(2020ZD0003) |
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| 摘 要： | 目的]探究兴羔肉羊的生长发育特征及遗传特性。方法]对2018—2019年出生的1 054只兴羔肉羊羔羊的初生重、断奶重、6月龄体重、12月龄体重数据进行统计分析，并采集部分羊只6月龄、12月龄、24月龄的体高、体长及胸围数据。详细记录每只羔羊的出生类型及系谱档案，利用WOMBAT软件对其初生重、断奶重进行遗传评估。结果]兴羔肉羊羔羊初生重和断奶重的遗传力分别为0.980和0.885，表型相关为0.321，遗传相关为0.396；6月龄时，公羊体重占成年体重的44.21%、母羊体重占成年体重的60.33%，公羊和母羊的体尺数据都达到成年体尺数据的80%以上。结论]兴羔肉羊的初生重和断奶重具有高遗传力，且符合肉用品种羊早期生长发育快的遗传特性。
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| 关 键 词： | 兴羔肉羊 生长特性 遗传特性 WOMBAT软件 |
| 收稿时间： | 2022-10-07 |
Growth and Development Pattern and Genetic Evaluation of Xinggao Mutton Sheep |
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| Xuan ZHOU,Shu-juan LI,Jiao-xia XU,Terigele,Naqin,Xue-wen LIU,Xiao-long HE.Growth and Development Pattern and Genetic Evaluation of Xinggao Mutton Sheep[J].Animal Husbandry and Feed Science,2022,43(6):72-76. |
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| Authors: | Xuan ZHOU Shu-juan LI Jiao-xia XU Terigele Naqin Xue-wen LIU Xiao-long HE |
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| Institution: | 1. Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences，Hohhot 010031，China2. College of Animal Science，Inner Mongolia Agricultural University，Hohhot 010018，China3. Inner Mongolia Agricultural and Animal Husbandry Technology Promotion Center，Hohhot 010011，China4. Xing An Vocational and Technical College，Ulanhot 137400，China |
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| Abstract: | Objective] The present study aimed to explore the growth and development characteristics as well as genetic traits of Xinggao mutton sheep. Method] The data on birth weights, weaning weights as well as weights at 6 and 12 months of age of a total of 1 054 Xinggao lambs born between the year of 2018 and 2019 were statistically analyzed. Additionally, measurements of body height, body length and chest circumference of selected lambs were taken at 6, 12 and 24 months of age. Each lamb′s birth type and pedigree file were recorded in detail. WOMBAT software was used to undertake genetic evaluation on the birth weight and weaning weight. Result] The heritability of birth weight and weaning weight of Xinggao lambs was 0.980 and 0.885, respectively, and the phenotypic and genetic correlations were 0.321 and 0.396, respectively. At 6 months of age, the weights of the ram lambs and ewe lambs represented 44.21% and 60.33% of those of their adult counterparts, respectively, and their body measurements exceeded 80% of those of the adults. Conclusion] The birth weight and weaning weight of Xinggao mutton sheep were highly heritable and adhere to the genetic traits of rapid growth and development in the early stages of breeds for meat production. |
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| Keywords: | Xinggao mutton sheep growth characteristics genetic traits WOMBAT software |
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