Rendimiento productivo de pollitas de la línea lohmann brown en la fase de levante (9-17 semanas) alimentadas con diferentes niveles de proteína de origen animal.

Abstract

The productive performance of pullets of the Lohmann Brown line were evaluated in the lifting phase (9-17 weeks) fed with different levels of protein of animal origin, the chemical composition of the experimental diets were determined with 2, 4, and 6% of Proteika, and the cost of production of each treatment were analyzed; with an experimental methodology in the Academic and Poultry Research Unit, of the Animal Science Faculty, of the Escuela Superior Politécnica de Chimborazo, under a completely random design for which three treatments were used and a control with four repetitions, forming each experimental unit of 26 pullets giving a total of 416 birds under study for the course of 63 days. Significant differences (P˂0,05) were registered for the productive parameters, being the best pullets fed with diets elaborated with 6% Proteika (T3) as final weight 1451.41 ± 9.38 g, weight gain 722.951 ± 9.03 g, feed intake 3491, 26 ± 28.53 g, protein consumption on day 11, 24 ± 0.08 g, metabolizable energy consumption per day 0.168 ± 0.001 and the best feed conversion 4.83 ± 0.08; on the other hand, the best B/C was the control (T0) with 1,234 USD and with a profitability of 23%. It is concluded that for the productive variables, the best treatment was (T3) with 6% inclusion of Proteika in the diet. National poultry farmers are recommended to implement a 6% inclusion rate of protein of animal origin (Proteika) in the diets of pullets of the Lohmann Brown line in the lifting phase (9-17 weeks), since it is possible to significantly increase productive parameters with the obtaining fully developed birds in physiological and anatomical areas, prepared for the posture phase.