Economic evaluation of different supplementation of Nellore steers on pasture during the rainy season

• Weber Vilas Bôas Soares ^[1] ; Renato Nascimento Rodrigues ^[2] ; Rodrigo Eduardo da Silva ^[3] ; Marcus Antônio Zanetti ^[2]
  1. [1] Secretaria da Agricultura e Abastecimento, Departamento de Descentralização do Desenvolvimento, Polo APTA Nordeste Paulista
  2. [2] FZEA, USP/Pirassununga
  3. [3] FATEC Mococa/SP

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• Localización: Archivos Latinoamericanos de Producción Animal, ISSN 1022-1301, ISSN-e 1022-1301, Vol. 20, Nº. 3-4, 2012
• Idioma: inglés
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• Resumen

  • This work was undertaken to study the effects on animal performance and cost of supplementing Nellore steers grazing Brachiaria brizantha pastures in the rainy season over approximately 6 Mo of experimentation. Forty steers were used in four groups of 10 each; two of which received mineral supplementation (C) and two energy supplementation (ES). The latter resulted in more rapid live weight gain (P < 0.05), but the profit margin was 5.59% higher for animals under C.