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Optimal standardized ileal digestible arginine to lysine ratio for Japanese quails in the egg-laying phase

Tuesta, G. M. R.; Viana, G. S.; Barreto, S. L. T.; Muniz, J. C. L.; Reis, R. S.; Mencalha, R; Hannas, M. I..
R. bras. Ci. avíc.; 20(2): 351-356, Apr.-June 2018. tab
Artigo em Inglês | VETINDEX | ID: vti-734685


This study was conducted to determine the optimal standardized ileal digestible arginine to lysine (SID Arg:Lys) ratio for Japanese quails in the egg-laying phase. A total of two hundred forty-five 35-week-old Japanese quails (181 ± 1.30 g initial body weight) were randomly assigned to five treatment groups with seven replicates of seven quails. Graded levels of L-Arginine were added to a basal diet in order to produce five SID Arg:Lys ratios (101, 106, 111, 116 and 121%). Collected data were analyzed as one-way ANOVA and optimal ratio was estimated using polynomial regression model (linear and quadratic) based on performance traits. Statistical differences were considered for p<0.05. Graded SID Arg:Lys ratios did not affect performance traits assessed. Based on results, the SID Arg:Lys ratio of 101% is sufficient to warrant proper performance of Japanese quails in the egg-laying phase.(AU)
Biblioteca responsável: BR68.1
Localização: BR68.1