Evaluación del comportamiento productivo de pollos Cobb 500 con diferentes niveles de Ácido Guanidinoacético

Abstract

In order to evaluate the productive behavior of Cobb 500 broilers in Riobamba Canton, Chimborazo Province, during, 60 days of experimentation, different levels of Guanidinoacetic Acid were used. Two treatments (T1 and T2) were used together with a control group (T0) under a completely randomized design. Each treatment had 5 replicates and 10 birds of one day of age per cubicle as the experimental unit size, with an average weight of 39.61 g. Several variables were evaluated, such as initial weight, final weight, feed comsumption, weight gain, feed conversion, uniformity, European efficiency, mortality, carcass yield, localized fat and cost benefit. The results showed that birds with different levels of Guanidinoacetic Acid presented significant differences. Trearment T2 (1200 g/MT of Guanidinoacetic Acid) showed a higher final weight (3519.3 g), weight gain (3479.59 g), feed conversion (1.65), feed efficiency (394.91) and localized fat (82.7 g). On the other hand, the T0 treatment showed a higher carcass yield (87.30%). In the benefit/cost analysis, the T2 treatment was the most adequate with a value of 1.23. For uniformity, treatment T2 had a percentage of 86%, the highest mortality was recorded in treatment T1 with 12%. The results obtained differ from other studies, possibly due to external factors such as environmental temperature, ventilation, feed, density, genetic line, among others. It was recommended to include Guanidinoacetic Acid (600, 1200 g/MT) in the feed of broilers at different stages of production (initiation, growth and fattening) to optimize the productive performance of the birds during their development.