Abstract
This study evaluated the influences of nitrogen fertilizer and energy supplementation cattle on the growth performance of beef cattle. This study was conducted at the Federal University of Technology of Paraná, Dois Vizinhos through continuous grazing on 6.3 ha, divided into nine paddocks. The treatments were: Alexander grass +100 kg ha−1 of N (N100); Alexander grass + 100 kg ha−1 of N + 0.5 kg per 100 kg of weight live supplementation of wheat bran (N100S); and Alexander grass +200 kg ha−1 of N (N200), with an average herbage allowance of 10% for all treatments. Crossbred and non-castrated steers with an average weight of 276 ± 41 kg were used for 107 days. The crude protein from entire plant differed (P < 0.05) between treatments, with the greater value (14.8%) occurring in the N200, and the lesser value (13.3%) occurring in the N100S. The herbage accumulation rate was greater (P < 0.05) in the N200 (55.7 DM ha−1 d−1) than that in the N100S and N100 (40.0 and 39.7 kg DM ha−1 d−1, respectively). The N100S produced greater (P < 0.05) average daily weight gains (0.815 kg animal day−1) than did the N200 (0.685 kg animal day−1) and N100 treatments (0.727 kg animal day−1).
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Venturini, T., de Menezes, L.F.G., Montagner, M.M. et al. Influences of nitrogen fertilization and energy supplementation for growth perfomance of beef cattle on Alexander grass. Trop Anim Health Prod 49, 1757–1762 (2017). https://doi.org/10.1007/s11250-017-1389-2
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DOI: https://doi.org/10.1007/s11250-017-1389-2