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Campo Grande, Brazil

Santana M.C.A.,Federal University of Vicosa | Euclides V.B.P.,Embrapa Beef Cattle Center | Mancio A.B.,Federal University of Vicosa | Medeiros S.R.,Embrapa Beef Cattle Center | And 2 more authors.
Asian-Australasian Journal of Animal Sciences | Year: 2013

The aim of this study was to evaluate the efficiency of supplements containing different energy sources in relation to mineral supplementation of steers grazing guineagrass (Panicum maximum cv Tanzânia) pasture, during the dry season. The experimental design was a randomized block with three treatments and four replications. The treatments consisted of a mineral supplementation and two other supplements, one based on corn seed and the other based on soybean hulls, and provided at 0.8% of body weight. Forty-eight, 12 month-old crossbred steers with an average initial body weight of 267 kg, were assigned to twelve paddocks (1,125 ha) of guineagrass. The animals that were fed with soybean hulls and corn seed presented a greater average daily gain (0.982 and 0.937) when compared with the mineral supplementation. Soybean hulls can be used as a satisfactory food source, replacing corn as an energy source in the supplementation of beef cattle without compromising animal performance. Copyright © 2013 by Asian-Australasian Journal of Animal Sciences. Source

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