[Frequency of congenital anomalies in cattle: results from the practice in comparison with literature].
The study gives a short survey of the literature of frequently observed congenital anomalies in cattle and refers to data on cases of congenital anomalies registered in a veterinary practice over a period of 8 years and in an AI (artificial insemination) station of the Rinder-Union West (RUW) during 4 years. The frequency of congenital anomalies was estimated at 0.013% in the area of the RUW. In the veterinary practice a frequency of 0.51% was found. The most prevalent anomalies were seen in legs (39% in the veterinary practice and 21% in RUW) followed by congenital anomalies of the spine (9% in the veterinary practice and 17% in RUW). Arthrogryposes were most frequent among the anomalies of the legs with 65% (veterinary practice) and 39% (RUW), respectively, of all cases of registered leg anomalies in the respective area. Umbilical hernia and atresia of segments of the intestinum were seen in 8-30% of all registered cases. The frequency of congenital anomalies differed not significantly among paternal half sib groups. A questionnaire was proposed for the registration of congenital anomalies in progeny tests of AI bulls. A series of photographs showing the most prevalent congenital anomalies is supporting the registration form.
Bähr
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Institut für Tierzucht und Vererbungsforschung der Tierärztlichen Hochschule Hannover. ottmar.distl@tiho-hannover.de
Distl
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D000818:Animals; D002417:Cattle / Q000002:abnormalities*; D000013:Congenital Abnormalities / Q000453:epidemiology / Q000235:genetics / Q000662:veterinary*; D005260:Female; D005858:Germany / Q000453:epidemiology; D007315:Insemination, Artificial / Q000662:veterinary; D008297:Male; D011159:Population Surveillance; D015995:Prevalence; D012042:Registries