Evaluación del uso de mananasa en dietas de maíz-soya para pollos de engorde.

Abstract

This investigation was carried out at the Hacienda Emma del Rocio located at Km. 72 via Triunfo-Bucay. This investigation was divided into three treatments with 90 chickens in each treatment; All the treatments had male chickens of the Cobb 500 line, in turn, it was subdivided into cubicles where 15 chickens per cubicle were placed, leaving 6 cubicles for each treatment, giving a total of 90 chickens per treatment and that in turn 270 in all research. Each treatment was given different portions of Kcal in the diet, having 4 feeding stages. In treatment 1, 500 grams of the mannanase enzyme was added per ton of feed, providing this enzyme 60 Kcal / Kg in the feed, for this treatment, the chickens received the feed with the enzyme from the first day of entry to the shed, Until the end of rearing, in addition, this treatment received 60 Kcal / Kg of feed higher than what the other treatments received in each stage. While in Treatment 2, 500 grams of mannanase per ton of feed was added, the chickens received the feed with the enzyme from the first day of entry to the house, until the end of the rearing, taking into account that this group had 60 Kcal / Kg of food less than Treatment 1. Finally, the control treatment, which did not add the enzyme to this treatment and this group had 60 Kcal / Kg of food less than Treatment 2. The objective was to evaluate the effect of the use of the mannanase enzyme on the productive parameters of Cobb 500 chickens. The 3 study groups were subjected to the same rearing conditions. At the end of the investigation, it was concluded that, although there is no statistically significant difference, the control treatment without enzyme was the one that obtained the best results in terms of bioproductive parameters; Regarding mortality, the three treatments obtained a mortality within the parameters of less than 5%.