Programa de alimentação dividida (Split feeding) para galinhas poedeiras

Abstract

It was evaluated a Split feeding program for commercial laying hens, its zootechnical and physiological results, egg bromatology and the diets digestibility. A total of 240 commercial Lohmann LSL®, laying hens were used, divided into four treatments (60 birds / treatment), with five replications each. The treatments were: MC - conventional feed program (50% in the morning and 50% in the afternoon); SFB: Split feeding base (hight energy / protein and low calcium in the morning and low energy / protein and high calcium in the afternoon); SF-2: SFB feed program with 2% reduction in nutrients; SF + 2: SFB feed program with 2% increase in nutrients. The experiment was carried out in 56 days, comprising two cycles of 28 days. The birds were fed twice a day, each one receiving 108 g of feed/day, divided equaly in the morning and afternoon. We evaluated productive, physiological and blood parameters, economic analysis of diets, diets digestibility test and bromatological analysis of eggs. Egg production, bird weight and blood parameters were the same between treatments. The best results for specific gravity were observed in Split feeding systems (SFB; SF-2 and SF + 2). The Split feeding program did not cause any loss to the zootechnical performance of the laying hens, being economically more viable.