Porcentagem de proteína em suplementos para ovinos mantidos em pasto de capim-aruana na época seca

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Abstract

The aim of this study was to evaluate the forage intake and grazing sheep performance keep on Aruana grass subjected to increasing crude protein (CP) levels in the supplement on dry season. Twenty Santa Ines male lambs were used, with initial body weight of 31.80kg by a completely randomized design with five treatments and four replications. The supplements were provided daily at 1% of body weight, with protein levels of 0, 15, 20, 25 and 30%. The increase of the crude protein levels promoted a squarely effect on dry matter intake (kg/day and % of BW), with maximum estimated values of 1296g and 3.2% of DM in CP levels of 21.48 and 21.89, respectively. The maximum forage intake estimated of 893g/day occurred in CP level de 21.51%. The increased of crude protein level in supplements increased squarely the average daily gain, with a maximum of 104g/day, for the 23% crude protein in the supplement. Thus, the use of the multiple supplements supplied in 1% of body weight with CP levels ranged 21 a 23% is indicated for sheep grazing Aruana grass on dry season.

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Ribeiro, P. P., Cabral, L. S., Zervoudakis, J. T., Miranda, L., Abreu, J. G., Rodrigues, R. C., … Toledo, C. L. B. (2014). Porcentagem de proteína em suplementos para ovinos mantidos em pasto de capim-aruana na época seca. Arquivo Brasileiro de Medicina Veterinaria e Zootecnia, 66(6), 1779–1786. https://doi.org/10.1590/1678-5357

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