Reproductive Anatomy and Physiology of the Bull

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Good reproductive performance of a bull is necessary to obtain a high percent calf crop when natural service is used for breeding. A bull must be fertile, capable and willing to mate a large number of cows during a short breeding season for optimum production. A basic knowledge of the reproductive tract is beneficial for improved management. An understanding of the bull’s reproductive system will also help the producer better understand breeding soundness examinations, reproductive problems and breeding impairments.