[World-wide causes of insemination bul losses].
D000349:Africa; D000367:Age Factors; D000818:Animals; D001208:Asia; D001315:Australia; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D005060:Europe; D005823:Genetics; D007248:Infertility, Male / Q000453:epidemiology / Q000662:veterinary*; D007315:Insemination, Artificial / Q000662:veterinary*; D008297:Male; D009656:North America; D013020:South America; D013223:Statistics as Topic; D013997:Time Factors
Abgangsursachen bei Besamungsbullen in der Welt.