Читать книгу Bovine Reproduction - Группа авторов - Страница 229

Congenital short penis is seen uncommonly and must be differentiated from a partial phimosis secondary to preputial injury or fibrosis of the retractor penis muscles. Some affected bulls may sire calves by natural service during their first or second breeding season, but copulation becomes impossible as they reach mature body size. Diagnosis is made by observation of breeding and measurement of the distance from the preputial orifice to the tip of the extended penis. The etiology of congenital short penis is unknown [24]. Affected bulls are unable to breed naturally and should be culled.