FR 05. Field reproductive potential evaluation of Brahman bulls

• Pedro Bastidas ^[1] ; O. Silva ^[1] ; N. Guerrero ^[1] ; J. Troconiz ^[1]
  1. [1] Universidad Central de Venezuela

     Universidad Central de Venezuela

     Venezuela

     
• Localización: Archivos Latinoamericanos de Producción Animal, ISSN 1022-1301, ISSN-e 1022-1301, Vol. 5, Nº. Extra 3, 1997 (Ejemplar dedicado a: Proceedings XV ALPA meeting 2)
• Idioma: inglés
• Enlaces
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• Resumen

  • A total of 838 Brahman bulls were subjected to a breeding soundness evaluation (BSE) just prior to be exposed to cows under natural breeding. The bull population examined had a range of ages between 2 and 15 year-old. Classification of the bulls acording to BSE was as follows: 52 % of the 2-year-old bulls were satisfactory potential breeders while a 31% did result insatisfactory mainly due to either small scrotal circumference (SC) or poor semen characteristics. Bulls between 3 and 6 years of age were satisfactory breeders in a 80 to 87 % range. The percentage of insatisfactory bulls increased (P