[Retrospective study of the fertility outlook in cows after caesarean section].
Evaluating the possibility of performing a caesarean section on a cow with dystocia, the economic value of the animal usually plays a central role. The aim of this retrospective study was to analyse and to determine possible factors influencing the fertility. In 1998, 1999 and the first half-year of 2000 a total of 207 cows had a caesarean section. 68% of the inseminated cows which gave birth to a living calf became pregnant again, whereas only 46% of the cows with a dead calf were successfully reinseminated. Thus, 59% of all inseminated cows became pregnant, 2.5% of them had an abortion. The occurrence of retained fetal membranes or of endometritis has been shown to have negative effects on fertility. Only 30% of subsequent inseminations were successful in cows which had suffered from endometritis. The probability of being affected by endometritis was twice as high after birth of a dead calf than after a living calf.
Gschwind
D
D
Klinik für Fortpflanzungsmedizin der Universität Zürich.
Hässig
M
M
Bleul
U
U
D000818:Animals; D002417:Cattle / Q000502:physiology*; D002418:Cattle Diseases / Q000503:physiopathology*; D002585:Cesarean Section / Q000009:adverse effects / Q000662:veterinary*; D004420:Dystocia / Q000503:physiopathology / Q000601:surgery / Q000662:veterinary; D004715:Endometriosis / Q000503:physiopathology / Q000662:veterinary; D005260:Female; D005298:Fertility / Q000502:physiology*; D005313:Fetal Death / Q000503:physiopathology / Q000662:veterinary*; D018457:Placenta, Retained / Q000503:physiopathology / Q000662:veterinary; D011247:Pregnancy; D012189:Retrospective Studies