Casca de sururu: fonte alternativa de cálcio na alimentação de codornas Japonesas

Abstract

The objective of this study was to evaluate the influence of replacement shell sururu in feeding Japanese quails on performance and economic viability during the period of one to 35 days of age. 360 Japanese quails in cages housed in battery cages galvanized wire type were used. The experimental design was completely randomized with six treatments and six replicates of 10 birds each. The treatments were: T1-basal ration with 0.90% calcium, derived from limestone; T2 - basal ration with 20% reduction of calcium derived from the flour of the shell sururu providing 0.72% calcium; T3 - basal ration with 10% reduction in calcium derived from the flour of the shell sururu providing 0.81% calcium; T4 - basal ration with 10% increase in calcium derived from the flour of the shell sururu providing 0.99% calcium; T5 - basal ration with 20% increase in calcium derived from the flour of the shell sururu providing 1.08% calcium and T6 - basal ration containing 0.90% calcium derived from the flour of the shell sururu. The performance variables evaluated were: weight gain, feed intake and feed conversion. Weight gain and the conversion of quail in the period 22 to 35 days old, fed diets with 0.81% calcium derived from the shell flour sururu differed significantly (P <0.05), compared to the other treatments evaluated. There was a significant difference (P <0.05) feed intake of quails within one to 35 days of age, and T3 (0.81% Ca derived from the flour of the shell sururu) that showed the best result; not for the other variables observed a significant difference (P> 0.05). According to the results obtained in this research, flour shell sururu can be used as a source of calcium to 100% replacement of limestone in diets of Japanese quail from one to 35 days old, without affecting the performance of birds, moreover, allows to reduce the level of calcium rations to 0.81%.