Comportamiento productivo de pollitas de la línea lohmann brown en la fase de cría (1-8 semanas) alimentadas con diferentes niveles de proteína de origen animal.

Abstract

The productive behavior of chicks of the Lohmann Brown line in the breeding phase (1-8 weeks) fed with different protein levels of animal origin was evaluated, the chemical composition of the experimental diets was determined with 2, 4 and 6 % of Proteika and the cost of each treatment was analyzed; with an experimental methodology in the Academic and Poultry Research Unit, of the Animal Science Faculty, of the Escuela Superior Politécnica of Chimborazo, under a completely raised design for which three treatments were used and a control treatment with four repetitions, formed each experimental unit for 26 chicks, giving a total of 416 birds under study, with a duration of 56 days. Significant differences were registered between the treatments (P<0,05) for the productive parameters, having the best results the pullets fed with diets of 6 % inclusion of Proteika (T3), as final weight 713,20 ± of 9,41 g, weight gain 569,53 ± of 9,33 g, food intake 1399,34 ± 17,88 g, protein intake/day 7,33 ± 0,09 g, metabolizable energy consumption/day 0,11 ± 1,39 Mcal, and the best feed conversion 2,46; on the contrary the best cost benefit ratio reported the control treatment (T0) with USD 1,176 and a profitability of 17,6 %. It is concluded that in terms of productive variables, the best treatment was T3 with 6 % inclusion of Proteika. It is recommended the inclusion of Proteika to the poultry sector and evauate higher levels, since it is possible to significantly raise the productive parameters obtaining a better morphophysiological development of the birds.