Implementación de tres dietas balanceadas con diferentes niveles de proteína para cría y levante de gallinas Lohmann Brown

Abstract

In the production unit poultry of the Animal Sciences Faculty, Escuela Superior Politécnica de Chimborazo, located in the Canton Riobamba, Chimborazo Province, we investigated the effect of different levels of crude protein in the diet of pullets replacement Lohmann Brown during breeding (19, 20 and 21% protein) and growing (17, 18 and 19% protein), for the test were employed three treatments and five replications forming each experimental unit by 20 pullets, giving a total of 300 experimental units, which were distributed in a completely randomized design, for 140 days. Determining that at the stage of breeding the best results in weight 705,60 g, (T2); 208,80 g, weight gain (T2); It was with the 20% of CP, however the best efficiency in converting food 1,50 (T3), and increased consumption of technological variables was with 21% of PC 60 days. In the stage of growing was obtained a final weight of 1301,8 g. (T2) weight gain of 144,6 G (T2) and a feed convertion of 3,17 (T2), with 18% of CP: While the increased consumption of technological variables is obtained in 19% of protein to the 120 days of evaluation. The best index benefit, he was obtained with treatment (T3)