比格犬妊娠早期孕囊发育及子宫血流变化分析  

Changes of Gestational Sac Development and Uterine Blood flow in Beagles

作　　者：董志颖 王岩 郭志林 刘俊平[1] DONG Zhiying;WANG Yan;GUO Zhilin;LIU Junping(College of Veterinary Medicine,Inner Mongolia Agricultural University,Hohhot 010018,China;Hohhot Vocational College,Hohhot 010051,China)

机构地区：[1]内蒙古农业大学兽医学院,内蒙古呼和浩特010018 [2]呼和浩特职业学院,内蒙古呼和浩特010051

出　　处：《家畜生态学报》2023年第10期49-53,76,共6页Journal of Domestic Animal Ecology

基　　金：国家重点研发计划(2016YFD0501000)。

摘　　要：应用超声检查对犬进行早期妊娠诊断有一定优势,然而对妊娠早期孕囊发育和子宫血流变化的研究报道不多。该研究采用B型超声和多普勒超声于妊娠早期对18只比格犬进行监测,测量了孕囊头臀侧外径(OLL)和内径(ILL)、背腹侧外径(ODV)和内径(IDV)、子宫动脉收缩期血流速度峰值(PSV)、舒张末期血流速度(EDV)、搏动指数(PI)和阻力指数(RI),分析犬早期孕囊与妊娠时间的相关性以及子宫动脉血流的变化。结果表明:孕囊OLL在妊娠第24~25天显著高于第23天,第26~27天显著高于第24~25天、显著低于第28天(P<0.05);ILL在妊娠第23天显著高于第20~21天,第26~28天显著高于第23~24天(P<0.05);ODV在妊娠第23天显著高于第20天,第25天显著高于第23天、显著低于第28天(P<0.05);IDV在妊娠第22天显著高于第20天,第25天显著高于第22天,第27天显著高于第25天、显著低于第28天(P<0.05);第22、25、28天子宫动脉血流无明显变化。利用超声探查技术成功地监测到比格犬妊娠早期孕囊OLL、ILL、ODV、IDV随着妊娠时间增加而快速增长,且妊娠时间对其有正向影响;子宫动脉血流在测定期内变化不明显。检测结果提示妊娠情况良好、胎儿发育正常。The use of ultrasonography to diagnose early pregnancy in dogs has certain limited advantages.Researches on gestational sac development and changes in uterine blood flow were especially few.Eighteen early pregnant Beagles were monitored by application of B-mode ultrasound and Doppler.The outer(OLL)and inner(ILL)latero-lateral diameters,and the outer(ODV)and inner(IDV)dorso-ventral diameters of gestational sac were measured.The peak systolic velocity(PSV),end-diastolic velocity(EDV),pulsatility index(PI)and resistance index(RI)of uterine artery were measured.The analysis on the correlation between the gestational sac development and gestation age,and the changes of uterine blood flow was also conducted.The results showed OLL in day 24 to 25 was significantly higher than in day 23,day 26 to 27 higher than in day 24 to 25,and was remarkably lower than in day 28(P<0.05).ILL in day 23 of preganancy was significantly higher than in day 20 to 21,and day 26 to 28 remarkably higher than day 23 to 24(P<0.05).ODV was significantly higher in day 23 than day 20,day 25 higher than day 23 and remarkably lower than day 28(P<0.05).IDV was higher in day 22 than in day 20,day 25 higher than day 22,day 27 higher than day 25 and lower than day 28(P<0.05),and there was no significant change in uterine arterial blood flow on days 22,25,28.Ultrasound exploration technology has successfully monitored the rapid growth of OLL,ILL,ODV and IDV of the gestational sac in the early trimester of Beagle dogs with the rapid growth of gestational days,and the gestation time has a positive effect on them.Uterine arterial blood flow does not change significantly during the measurement period.The results indicate good pregnancy and normal fetal development.

关 键 词：超声探查 比格犬 早期妊娠诊断 

分 类 号：S829.2[农业科学—畜牧学]