NR 38. Heifers management supplementation in savannas plains conditions. I. Reproductive behavior to two ages supplemented with multinutritional blocks

• Beatriz Birbe ^[1] ; Pablo Herrera ^[1] ; Nelson Martinez ^[2] ; M. Hernandez ^[1] ; Domingo Mata ^[1]
  1. [1] Universidad Nacional Experimental Simón Rodríguez

     Universidad Nacional Experimental Simón Rodríguez

     Venezuela

     
  2. [2] 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. 3, 1997 (Ejemplar dedicado a: Proceedings XV ALPA meeting 1)
• Idioma: inglés
• Enlaces
  • Texto completo
• Resumen

  • A group of 42 contemporary zebu crossbred dual-purpose heifers, grazing Trachypogon sp. were randomly assigned to 3 treatments: (T1), group control with commercial minerals (normal farm management); (T2) and (T3) groups that had received supplementation 22 and 30 months of age respectively, with multinutritional blocks (MB) of whole cottonseed (Gossypium hirsutum). Age and the live weight to first detected ovarian activity was significantly (P