Multi-vertebrae variation potentially contribute to carcass length and weight of Kazakh sheep
Multi-vertebrae variation potentially contribute to carcass length and weight of Kazakh sheep
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多椎骨变异可能影响哈萨克羊的胴体长度和重量
DOI：
10.1016/j.smallrumres.2017.02.021
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发表时间：
2017-05-01
影响因子：
1.8
通讯作者：
Hu, Shengwei
中科院分区：
文献类型：
--
作者：
Li, Cunyuan;Zhang, Xiangyu;Hu, Shengwei
椎骨变异是哺乳动物的一个重要特征。本研究的目的是研究哈萨克羊的椎体变异及其与胴体长度和体重的关系。我们通过分割468只哈萨克羊的胴体，检测了胸椎(T)和腰椎(L)椎体变异。他们发现了七种不同的椎骨结构。大多数羊（74.14%）有13条胸椎和6条腰椎（T13L6），其他变异包括T13L7（12.34%）、T14L6（10.68%）、T14L5（1.28%）、T12L6（0.64%）、T12L7（0.21%）和T14L7（0.21%）。T13L7和T14L6的胴体长度比正常T13L6分别增加了2.22 cm和2.93 cm，各增加了一节腰椎和一节胸椎。T13L7和T14L6的胴体质量也比T13L6分别提高了1.68 kg和1.90 kg。结果表明，哈萨克羊的多椎体变异对胴体长度和体重有一定影响。(C) 2017 Elsevier B.V.版权所有
Vertebrae variation is an important characteristic in mammals. The purpose of this study is to investigate vertebral variation and the association with carcass length and weight in Kazakh sheep. We examined thoracic (T) and lumbar (L) vertebral variation by splitting carcass on 468 Kazakh sheep. Seven kinds of vertebrae formations were discovered. The majority (74.14%) of sheep had 13 thoracic and 6 lumbar (T13L6), and other variations included T13L7 (12.34%), T14L6 (10.68%), T14L5 (1.28%), T12L6 (0.64%), T12L7 (0.21%) and T14L7 (0.21%). Moreover, carcass length of T13L7 and T14L6 sheep, possessing one more lumbar or thoracic vertebrae, respectively increased 2.22 cm and 2.93 cm compared with that of normal T13L6 sheep. Similarly, carcass weight of T13L7 and T14L6 sheep raised 1.68 kg and 1.90 kg, respectively, when compared with that of T13L6 sheep. Our results suggested that multi-vertebrae variation of Kazakh sheep could contribute to carcass length and weight. (C) 2017 Elsevier B.V. All rights reserved.