FR 19. Fourty five day breeding season. III: Calf growth

• Darío Montoni ^[1] ; Jose Rigoberto Vivas ^[1] ; Genaro Rojas ^[1] ; Jairo Parra ^[1] ; Milena Mago ^[1]
  1. [1] UNET, San Cristobal, 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
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• Resumen

  • This research was performed at Santa Rosa ranch located on a humid tropic in the southwest region of Táchira State, Venezuela, with Brahman heifers kept on pasture, supplemented with minerals and submitted to 45-days-breeding season beginning on march the first (E) vs conventional 90-days starting on april the first (C), to evaluate the growth performance of their calves. Least-squares analysis of variance on birth (PN, n = 210) and weaning (P205, n = 183) weights were performed including: Treatment (T:E,C) and calf’s year of birth (A: 1985,86,...93). sire (P:1,2,...,27) and sex (S:M,H). Adjusted means for PN and P205 were 28.9 ± 0.7 and 154.7 ± 2.5 kg, respectively. PN was affected by A (P