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作 者:苏奎源 符汉宇 徐业芬 扎西旺杰 白马桑珠 朗珍 秦浩峰 巴桑次仁 刘锁珠 SU Kuiyuan;FU Hanyu;XU Yefen;ZHAXI Wangjie;BAIMA Sangzhu;LANG Zhen;QIN Haofeng;BASANG Ciren;LIU Suozhu(College of Animal Sciences,Xizang Agriculture and Animal Husbandry College,Linzhi,Xizang 860000;Bange County Agriculture and Animal Husbandry Science and Technology Service Station,Naqu,Xizang 853400)
机构地区:[1]西藏农牧学院动物科学学院,西藏林芝860000 [2]班戈县农牧科学技术服务站,西藏那曲853400
出 处:《高原农业》2025年第2期232-238,共7页Journal of Plateau Agriculture
基 金:西藏自治区科技厅区域科技协同创新专项项目(编号:QYXTZX-NQ2021-01);西藏农牧学院大学生创新创业训练计划项目(2023-12)。
摘 要:为了给西藏地区兽医临床上应用兽用B超技术对色瓦绵羊卵泡发育及妊娠进行诊断提供B超影像及各项基础数据,本文对6只健康成年色瓦母绵羊在体、离体卵巢进行了卵泡发育B超检测以及屠宰验证,结果表明,在体可检测出三级以上卵泡,较低级别卵泡无法探测,对三级卵泡、成熟卵泡以及排卵前卵泡直径进行验证发现在体、离体监测以及屠宰验证无显著差异(P>0.05);人工授精后37-40 d即可利用兽用B超仪观测囊胚期胎儿,第56 d-63 d胎儿面积为(39.55±1.07)cm^(2),胎儿骨骼回声逐渐增强,第84 d-98 d胎儿面积为(42.75±12.66)cm^(2),此时能够区分胎儿头部、躯干,第111 d-120 d胎儿面积(113.05±7.16)cm^(2)能够清楚观察到胎儿胎位、四肢、心率变化。因此,兽用B超技术可应用于色瓦绵羊成熟及以上卵泡以及妊娠的准确判断。In order to provide B-ultrasound images and various basic data for veterinary clinical application of veterinary B-ultrasound technology to diagnose the follicular development and pregnancy of Sewa sheep in Xizang,this research carried out follicular development B-ultrasound detection and slaughter verification on six healthy adult Sewa ewes’ovaries in vivo and in vitro.The results showed that follicles of more than three levels could be detected in vivo,while those of lower levels could not be detected.There was no significant difference between in vivo and in vitro monitoring and slaughter verification(P>0.05)when the diameters of third level follicles,mature follicles and pre ovulation follicles were verified;After 37-40 days of artificial insemination,the blastocyst stage fetus could be observed using a veterinary ultrasound instrument.The fetal area from 56-63 days was(39.55±1.07)cm^(2),and the fetal bone echo gradually increased.On 84-98 days,the fetal area was(42.75±12.66)cm^(2),and the fetal head and torso could be distinguished.On 111-120 days,the fetal surface area was(113.05±7.16)cm^(2),and changes in fetal position,limbs,and heart rate could be clearly observed.Therefore,veterinary ultrasound technology can be applied to accurately determine mature and above follicles as well as pregnancy in Seva sheep.
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