FR 08. Postpuberal comparative evaluation of 5/8 Bos taurus crosbreed young bulls. 1. Productive performance

• Jose A. Aranguren-Mendez ^[1] ; Ninoska Madrid-Bury ^[1] ; Carlos Gonzalez-Stagnaro ^[1] ; William Isea-Villasmil ^[1]
  1. [1] La Universidad del Zulia

     La Universidad del Zulia

     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
  • Texto completo
• Resumen

  • The productive performance of 8 5/8 Holstein (5/8H) and 8 5/8 Brown Swiss (5/8PS) young bulls was characterized. The bulls came from a commercial herd, located in a dry tropical forest zone with 28 ºC mean temperature and bimodal annual rainfall of 1200 mm. Body weigth (BW), thoracic girth (HG) and heigth (H) were studied. The effects of genotype (G), seasons (dry, subhumid and humid) and its interaction, as well as, the initial weigth (BIW) as a covariable were considered. Data were analysed through ANOVA (SAS). The 5/8H were superior (P