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Performance of Braford steers grazing on cultivated pastures and fed or not fed an energy supplement

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Performance of Braford steers grazing on cultivated pastures and fed or not fed an energy supplement

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Título Performance of Braford steers grazing on cultivated pastures and fed or not fed an energy supplement
Autor Vaz, Ricardo Zambarda
Lobato, Jose Fernando Piva
Pacheco, Paulo Santana
Abstract This experiment evaluated the performance of 84 Braford steers grazing on summer and winter cultivated pastures fed or not fed an energy-protein supplement. Steers were 10 months old and weighed, on average, 165 kg at the beginning of the trial. Steers grazed on cultivated winter pasture, consisting of black oats (Avena strigosa) and ryegrass (Lolium multiflorum Lam.), and then on cultivated summer pasture, consisting of Napier grass (Pennisetum purpureum). The following treatments were applied: SS – supplement was fed during both seasons; SN – supplement was fed only during the winter; NS – supplement was fed only during the summer; and NN – steers were not fed any supplement. Supplementation resulted in higher body weight and better body condition score (SS: 369.2 and 4.52; SN: 335.2 and 4.01; NS: 352.5 and 4.49; SS: 322.5 and 3.83). Longissimus dorsi area was larger in supplemented steers, which also presented thicker backfat when compared with those not fed any supplement (3.67 and 2.29 mm, respectively).
Contido em Revista brasileira de zootecnia= Brazilian journal of animal science [recurso eletrônico]. Viçosa, MG. Vol. 42, n. 2 (feb. 2013), p. 130-136
Assunto Novilho
Nutricao animal
Pastagem
[en] Black oats
[en] Body condition
[en] Body weight
[en] Napier grass
[en] Weight gain
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/98457
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