Causes of copulatory failure in beef bulls.

摘要: A cow in full standing estrus is required to assess a bull's ability copulate. Insufficient libido not involved if the bull sniffs cow's vulva and attempts mount. Blood or pus exiting penis prepuce indicates penile preputial lacerations other lesions. Rear foot stifle lesions, seminal vesiculitis, traumatic reticulitis lumbar spinal injuries may prevent from mounting. Preputial stenosis, adhesions, desensitization, hematomas deviations, peripreputial abscess, cavernosal shunts, insufficient length occlusions of canals intromission after