Читать книгу Bovine Reproduction - Группа авторов - Страница 208

Recovery of normal testis tone and spermatogenesis is possible in most cases of testicular degeneration if the cause can be removed. Obese bulls may be fed restricted diets or put on pasture for weight loss, although it often takes three to four months for sufficient weight loss and seminiferous epithelium regeneration to restore semen production. When breeding seasons are short and bull to female ratio is ~1 : 35, there is sufficient breeding overlap to prevent an infertile dominant bull from making a significant impact on herd fertility [32, 33].