ABORTIONS AND TWIN PREGNANCIES IN THOROUGHBREDS - RATE OF OCCURRENCE, TREATMENTS AND PREVENTION

被引：24
作者：
MERKT, H
JOCHLE, W
机构：
[1] Clinic for Andrology and Artificial Insem, School of Veterinary Medicine, Hannover, D-30559
[2] Clinic for Andrology and Artificial Insem., School of Veterinary Medicine, Denvilla, New Jersey, 07834
来源：
JOURNAL OF EQUINE VETERINARY SCIENCE | 1993年 / 13卷 / 12期
关键词：
D O I：
10.1016/S0737-0806(06)81569-8
中图分类号：
S85 [动物医学（兽医学）];
学科分类号：
0906 ;
摘要：
Twin pregnancies recorded in German Thoroughbred mares were responsible for premature termination of 2.5% of 27 465 pregnancies between 1967 and 1992, and constituted 38.5% of all 1788 abortions (6.5% of all pregnancies) recorded over the same time. Over time, the rate of twin pregnancies dropped from 2.7% before 1984 to 1.7% thereafter (P<0.001). During the last 20 years several methods of treatment of early detected twin pregnancies were evaluated. Crushing of one embryo in 69 cases gave best results when conducted between Days 21 to 26 of pregnancy, resulting in 80% single gestations continuing. Curtailing food intake during early twin pregnancies to enforce regression of the weaker conceptus is difficult to manage. However, reducing feed intake for one cycle prior to breeding in three mares with histories of frequent twin pregnancies resulted in five single pregnancies in five attempts.
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页码：690 / 694
页数：5
相关论文
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