PERFORMANCE OF REPLACEMENT NELLORE HEIFERS WITH ALIMENTARY SUPPLEMENTATION ON THE DRY SEASON AT RENEWED PASTURES
DOI:
https://doi.org/10.5216/cab.v10i2.3491Keywords:
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: 21 nov. 2024.
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Section
Animal Production
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