Inclusión de afrecho de maíz en niveles de 2.5 %, 5% y 7.5% en alimentación de gallinas ponedoras durante la etapa de muda forzada de la semana 97 a la 107

Abstract

The inclusion of corn bran (CB) in the diet of laying hens at levels of 2.5, 5 and 7.5% was evaluated against a control treatment in hens of the Lohmann Brown line at the “San Alfonso” farm located in the parish of Bayushig, Penipe of Chimborazo province. The experimental work was carried out under a completely randomized model (DCA), in hens from week 97-107, with an initial weight of 2.10 kg distributed in 4 treatments and 4 replications with a total of 320 hens, composed of 20 experimental units and 80 birds per treatment. Different productive parameters were evaluated, such as final weight, feed consumption, feed conversion per egg (FEC), egg production, egg production per bird/day, egg production per bird/house, egg weight and broken eggs, which did not show significant differences (p>0,05) when including the different levels of CB in the diet. In addition, mortalities were observed in the control treatment, which resulted in a viability of 97.5%, while the treatments with CB diets showed a viability of 100%. In terms of the cost to produce a bucket of eggs, the treatment with a 7.5% inclusion level of CB showed a profitability of 2.77 USD. Based on these results, it is recommended to use an inclusion level of 7.5% corn bran, since it proved to stand out economically, however, it is recommended not to discard different inclusion levels of CB.