THE USE OF REAL-TIME ULTRASOUND RECTALLY FOR EARLY-PREGNANCY DIAGNOSIS IN SHEEP

被引：56
|
作者：
BUCKRELL, BC
BONNETT, BN
JOHNSON, WH
机构：
来源：
THERIOGENOLOGY | 1986年 / 25卷 / 05期
关键词：
D O I：
10.1016/0093-691X(86)90124-X
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Three groups of ewes (n=64) were tested for pregnancy using a real-time ultrasound system rectally, beginning at Day 25 after breeding. The ewes were examined while standing, using a 5 mH transducer designed for equine rectal use. Each examination required less than one minute and produced no apparent distress. The results of the test compare favorably with other methods of early pregnancy detection with a predictive value of a positive test of 97%, a predictive value of a negative test of 80% and an accuracy of 91%.
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页码：665 / 673
页数：9
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