口服促孕散治疗奶牛卵巢静止的B超影像学研究

为探讨促孕散治疗卵巢静止的作用机理，本研究主要通过直肠检查结合B超对卵巢静止奶牛做出诊断后，对其口服促孕散进行治疗，应用B超对卵巢卵泡直径、卵巢长度、卵巢宽度、子宫角纵径和子宫颈纵径进行测量，并与用药前进行对比。Ⅻ头卵巢静止奶牛口服促孕散后，治疗有效率达86．7％。停药后第1天卵巢出现中等卵泡和大卵泡，停药后第16天大卵泡数量最多，部分奶牛出现发情并排卵，与用药前卵巢比较发现，左右两侧卵巢长度在停药后第1、4、10、19天显著增大（P〈0．05）；左卵巢宽度在停药后第19天显著增大（P〈0．05）；右卵巢宽度在停药后第1、10、19天显著增大（P〈0．（15）7．子宫颈纵径在停药后第13、16天极显著增大（P〈o．01），第19天显著增大（P〈0．05），子宫角纵径与用药前比较差异不显著（P〉0．05）。结果表明，B超是诊断奶牛卵巢静止的有效手段，中药促孕散对卵巢静止奶牛卵巢和子宫形态学变化具有一定的作用，对治疗奶牛卵巢静止有明显的效果。

Study on B-Mode Ultrasonography of Ovary Inactivity after Taking Orally Fertility-promoting Power in Dairy Cattle

The objective of this study was to investigate the mechanism of taking fertility-promoting power to treat ovary inactivity in dairy cattle. Dairy cattles of ovary inactivity were diagnosed by rectal palpation and B-mode ultrasound scanning.These cows were determined 24h after taking medicine and some morphological indexs include diameter of foIlicule ,length of ovary, width of ovary, longitudinal diameter of cervix uterus and longitudinal diameter of horn uterus were assessd every three days by ultrasound scanning.The number of effective were 26 and effective ratio was 86.7% among 30 dairy cattles of ovary inactivity. The change of morphological indexs of ovarian and uterine before and after taking medicine were as follow： Medium and large follicules were appeared on ovary after finishing treatment for 1 day and most of large follicule were appeared after finishing treatment for 16 days and part of them appeared estrus and ovulation.The length of ovary on right and left side increased significantly （P〈0.05） after finishing treatment for 1 day, 4 days, 10 days, 19 days compared to that of dairy cows before taking medicine,respectively.The width of ovary on left side increased significantly （P〈0.05） after finishing treatment for 19 days compared to that of dairy cows before taking medicine. The width of ovary on right side increased significantly （P〈0.05） after finishing treatment for 1 day, 10 days, 19 days compared to that of dairy cows before taking medicine, respectively. The longitudinal diameter of cervix uterus was increased significant difference after finishing treatment for 13 days, 16 days （ P〈0.01 ） and for 19 days （P〈0.05）. The longitudinal diameter of horn uterus was not significant（P〉0.05）.The results showed that B-mode ultrasound scanning was a effective method to diagnose ovary inactivity and taking orally Fertility-promoting Power had obvious effect on morphological indexs of ovarian and uterine of ovary inactivity in dairy cows.