PERFORMANCE OF REPLACEMENT NELLORE HEIFERS WITH ALIMENTARY SUPPLEMENTATION ON THE DRY SEASON AT RENEWED PASTURES

Authors

  • Luiz Carlos Stahnke Jung Embrapa Cerrados
  • Hélder Louvandini Universidade de Brasília
  • Geraldo Bueno Martha Júnior Embrtapa Cerrados

DOI:

https://doi.org/10.5216/cab.v10i2.3491

Keywords:

Recria de novilhas, ganho de peso, suplementação energético/proteica, desempenho econômico, reprodução.

Abstract

The objective of this work was to evaluate the performance in live weight gain (LWG)  and economic of Nellore heifers in two strategies of alimentary supplementation: energy-protein (EP) and urea-salt (US). Twelve heifers with approximately twenty months old and initial live weight 306+21 kg were evaluated. The heifers had been kept in renewed pastures of Brachiaria brizantha cv Marandu. The duration of the experiment was of 55 days. The LWG and LWG/ha (live weight gain for hectare) were evaluated. For the economic analysis was considered operational cost, gross revenue, gross margin and the financial return direct. The heifers of EP showed 0.71 kg/animal/day higher than 0.43 kg/animal/day for SU (P<0.05). Although it was observed a better animal performance for heifers  suplemented with energy and protein, such  result was not confirmed on the  economic performance.

Key words: Economic performance, energy-protein supplements, rearing of heifers, weight profit.

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Published

2009-07-02

How to Cite

JUNG, L. C. S.; LOUVANDINI, H.; MARTHA JÚNIOR, G. B. PERFORMANCE OF REPLACEMENT NELLORE HEIFERS WITH ALIMENTARY SUPPLEMENTATION ON THE DRY SEASON AT RENEWED PASTURES. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 10, n. 2, p. 485–496, 2009. DOI: 10.5216/cab.v10i2.3491. Disponível em: https://revistas.ufg.br/vet/article/view/3491. Acesso em: 25 nov. 2024.

Issue

Vol. 10 No. 2 (2009)

Section

Animal Production

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