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王欣荣,郭天芬,杨雅楠,孙红梅,王彪,刘成泽.2018.牦牛和黄牛的睾丸形态及其血管构筑特征.动物学杂志,53(5):715-722.
牦牛和黄牛的睾丸形态及其血管构筑特征
Morphological Characteristics and Vascular Casts of Testes in Yak and Cattle
投稿时间:2018-01-16  修订日期:2018-08-16
DOI:10.13859/j.cjz.201805006
中文关键词:  牦牛  黄牛  睾丸形态  血管构筑
英文关键词:Yak, Bos grunniens  Cattle, B. taurus  Testis  Vascular casts
基金项目:国家自然科学基金项目(No. 31560634)
作者单位E-mail
王欣荣 甘肃农业大学动物科学技术学院 兰州 wangxr@gsau.edu.cn 
郭天芬 中国农业科学院兰州畜牧与兽药研究所 gtianfen@163.com 
杨雅楠 甘肃农业大学动物科学技术学院 1093516231@qq.com 
孙红梅 甘肃农业大学动物科学技术学院 1347988673@qq.com 
王彪 甘肃农业大学动物科学技术学院 1290247255@qq.com 
刘成泽 甘肃农业大学动物科学技术学院 190100037@qq.com 
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中文摘要:
      本实验旨在研究牦牛(Bos grunniens)和黄牛(B. taurus)的睾丸形态及其血管构筑和动脉管径特征,为牦牛睾丸在高原环境的生理适应性提供依据。从14头屠宰后的成年牦牛体内采集睾丸28枚,从9头成年黄牛体内采集睾丸18枚,测定其形态指标,利用血管铸型技术制作动静脉构筑标本,研究睾丸血管解剖学及主要动脉管径的特征。结果显示,牦牛和黄牛的睾丸、附睾的形态特征及动脉管径有差异,牦牛大部分睾丸动脉及其分支的管径与睾丸重的相对值极显著地高于黄牛(P < 0.01),牦牛睾丸的主要动脉构筑特征与黄牛的相同,但其大的集合静脉数量较少,小静脉呈“编织袋”状紧密排布。研究认为,牦牛睾丸的血管解剖特征可为睾丸提供更为充足的血液,其相对发达的动脉血管和睾丸静脉“编织袋”状分布特点有利于睾丸的温度调节及精子成熟,可能是牦牛生殖器官适应高海拔环境的生理特征之一。
英文摘要:
      The objective of this study is to analyze the characteristics and differences of the testes morphology, vascular casts and arterial diameters in yak and cattle and to explore the physiological mechanism of plateau adaptability in yak testis. Twenty-eight testes from fourteen slaughtered adult yaks (Bos grunniens) and eighteen testes from nine slaughtered adult cattle (B. taurus) were collected in Xining, Qinghai Province, and their morphological parameters were examined, vascular casts were achieved by adopting the vessel perfusion technology, arterial diameters were measured, and all of data were analyzed using T-test. Results showed that there were differences in morphology (Table 1), arterial diameters of testis and epididymis between yak and cattle, and relative ratios of diameter of testicular artery or its branch to testis weight in yak was higher than that of cattle (P < 0.01) (Table 2). The general arterial architecture of yak testis was similar to that of the cattle. Additionally, there were fewer thick collecting veins and fine veins showed the compact woven bag-shaped arrangement on the surface of testis (Fig. 1). The study suggests that testicular vascular anatomical characteristics are the basis for supplying enough blood to yak testis, especially the compact woven bag-shaped veins arrangement is able to benefit for adjustment of temperature and sperm maturation, which might be one of the plateau adaptability characteristics of testis in yak.
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