Substituição do farelo de soja por uréia ou amiréia na dieta de bovinos de corte confinados
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Data
2004-09
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Resumo
The objective of this work was to evaluate the effects of replacing soybean meal by urea or starea on
feedlot cattle performance. Eighty-one yearling intact males (27 Nellore, 27 Canchim and 27 Holstein) were used,
with initial body weight of 250 kg. Animals were assigned to a completely random block design according to
initial weight and breed. There were nine pen/treatment with three animals/pen. Experimental treatments were:
1) soybean meal, 2) urea and 3) starea. Diets contained 13% CP and were composed of 80% concentrate and 20%
raw sugarcane bagasse. DMI was 6.56, 7.18 and 6.97 kg/day, average daily gain was 0.889, 1.114 and 1.088 kg/day
and feed conversion was 7.3, 6.5 and 6.7 kg DM/kg gain for soybean meal, urea and starea, respectively. Soybean
meal reduced (P<0.01) DMI, average daily gain and feed efficiency and there was no difference (P>0.05) between
urea and starea treatments.
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Palavras-chave
Bagaço de cana-de-açúcar in natura, Desempenho, PDR, Raw sugarcane bagasse, Performance
Citação
PIRES, Alexandre Vaz; OLIVEIRA JUNIOR, Reinaldo Cunha de; FERNANDES, Juliano José de Resende; SUSIN, Ivanete; SANTOS, Flávio Augusto Portela; ARAÚJO, Rafael Canonenco de; GOULART, Ricardo Cazerta Duarte. Substituição do farelo de soja por uréia ou amiréia na dieta de bovinos de corte confinados. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 39, n. 9, p. 937-942, 2004.