Saturday, February 2, 2019

AGRIBUSINESS: BREEDING SOUNDNESS.

             AGRIBUSINESS: BREEDING SOUNDNESS IN BULLS.

 How long can I keep a bull, and at what age can a young bull start mating cows?
 Puberty in bulls occurs when they can produce viable sperm. This happens at approximately 12 months of age, though it can vary in individual bulls several months before or after this age depending on biological type (primarily frame size and potential mature weight), nutrition, and health status.

The Importance of the Breeding Soundness Exam circumference measures approximately 26 cm. A generally accepted guideline is to purchase/use only yearling bulls that have a minimum 32-cm scrotal circumference.

  Bulls can remain in service until they are 10 or 12 years of age. However, this is not the norm and usually remain in the herd for 4 to 5 years. Many do not last nearly that long due to hoof problems, structural problems, fertility issues, or injuries.

 Read: The management factors affecting fertility.


  Profitability for the cow-calf producer starts with high pregnancy rates and a high percentage of the calves being conceived early in the breeding season. A critical component of reproductive success is having sound, highly fertile bulls.

 This requires bull(s) that can detect cows in estrus, successfully mount and deliver viable, normal sperm into the reproductive tract of the cow.

A proven method to determine the breeding potential of bulls is the Breeding Soundness Evaluation (BSE) system developed by the Society for Theriogenology.

 The Breeding Soundness Evaluation (BSE) is a relatively quick and economic procedure that can be performed by your veterinarian. It is recommended that all bulls be checked annually, within 60 days of the start of the breeding season.
 
   The BSE system is a screening procedure that places bulls into categories of satisfactory, unsatisfactory, or deferred.

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