Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/18383
Tipo: Artigo
Título: Effects of supplements containing different additives on nutritional and productive performance of beef cattle grazing tropical grass
Autor(es): Carvalho, V.V.
Paulino, M.F.
Detmann, E.
Chizzotti, M.L.
Martins, L.S.
Silva, A.G.
Lopes, S.A.
Moura, F.H.
Abstract: A grazing trial was carried out to evaluate the inclusion of three feed additives in supplements (crude protein, CP 230 g/kg dry matter, DM) on the performance, voluntary intake, and digestibility of beef heifers grazing Brachiaria decumbens (CP 81 and neutral detergent fiber, NDF 615 g/kg DM). Thirty-five Nellore heifers (21 months of age and 383 ± 6.29 kg of body weight, BW) were used in a completely randomized design. The treatments were as follows: no supplement (control); supplement fed at 1 kg/animal/day without additives (S); supplement with monensin (S + M); supplement with yeast culture (S + YC); and supplement with enzyme complex (S + EC). All of the supplemented heifers had greater (P < 0.1) average daily gain (∼0.186 kg/day) compared to the control treatment (0.014 kg/day). Average daily gain and final BW were similar (P > 0.1) among supplemented heifers. Monensin inclusion in the supplement decreased (P < 0.1) forage DM (expressed as g/kg BW) and NDF intake (expressed as kg/day and as g/kg BW). All of the feed additive inclusions decreased (P < 0.1) NDF digestibility. In conclusion, the heifers’ performance was improved by concentrate supplementation. However, the inclusion of additives did not enhance this effect.
Palavras-chave: Pasture
Monensin
Yeast culture
Enzyme complex
Supplementation
Editor: Tropical Animal Health and Production
Tipo de Acesso: Springer Science+Business Media Dordrecht
URI: https://doi.org/10.1007/s11250-017-1286-8
http://www.locus.ufv.br/handle/123456789/18383
Data do documento: 7-Abr-2017
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