Effect of slow release urea in sheep feed on nitrogen balance / Ureia de liberação lenta na alimentação de ovinos sobre o balanço de nitrogênio
Geron, Luiz Juliano Valério; Garcia, Jocilaine; Aguiar, Sílvia Cristina de; Costa, Fabiana Gomes da; Silva, Ana Paula da; Sousa Neto, Eurico Lucas; Carvalho, Joilma Toniolo Honório de; Silva Roberto, Lucas; Coelho, Kallynka Samara Martins; Santos, Ilda Souza.
Semina ciênc. agrar
; 39(2): 683-696, mar.-abr. 2018. tab, graf
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| VETINDEX | ID: biblio-1501108
The aim of this study was to evaluate the effect of inclusion of 0.0%, 0.4%, 0.8%, and 1.2% slow release urea (SRU) in sheep feed on nitrogen balance (intake, fecal and urinary excretion, nitrogen absorbed and retained and/or nitrogen balance). Four sheep with an average body weight (BW) of 30.8 ± 1.7 kg were distributed using a Latin square experimental design. Sheep were allocated in metabolic cages and received two meals a day. The data were subjected to analysis of variance and differences were tested using a regression equation with a 5% probability. The inclusion of 0.0%, 0.4%, 0.8%, and 1.2% SRU in sheep diets did not change (p > 0.05) nitrogen intake (NI), with an average value of 20.49 g animal day-1 and 1.57 g (kg0.75)-1. The inclusion of 0.0%, 0.4%, 0.8%, and 1.2% SRU in sheep diets did not affect (p > 0.05) fecal nitrogen (FN) in g (kg0.75)-1, with an average value of 0.65 g (kg0.75) -1. However, the inclusion of SRU changed (p 0.05) the NB expressed as g animal day-1 (10.86) and g (kg0.75)-1 (0.82). However, the NB expressed as % NI or in relation to the NI responded in a quadratic manner (p < 0.05) to the inclusion of different levels of SRU in sheep food...
Biblioteca responsable:
BR68.1
Ubicación: BR68.1
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