Evaluación de diferentes niveles de 1,2- propanodiol como fuente de energía en dietas de pollos broiler.

Abstract

This study, developed in Domono civil parish, Macas, Morona Santiago Province, aimed to evaluate different levels of 1,2-Propanediol T1 (12,5%), T2 (25%) and T3 (37,5%), as energy sources in broiler chicken diets, and to compare them to a control treatment T0 (0 %), to improve the productive and economic parameters. It was used a completely randomized design, analyzed by the InfoStat software through the Regression and Tukey testing at 0,05 level of significance, composed by 200 experimental units with chicken Cobb 500 per day, divided into four treatments and five repetitions. At the end of the statistical analysis, no significant difference was detected (P > 0,05) during the different stages of feed intake; however, the best treatments numerically were T3 (1161,21 g), T1 (2297,43 g), T3 (1478,88 g) respectively. Regarding the weight gain at the early stage, growth and fattening; no significant differences existed, but there is a numerical difference in treatments T0 (332,50 g); T0 (1151,28 g) and T3 (1882,91) respectively. About the carcass yield, it was observed a significant difference (P < 0,05) outstanding T3 with (84,50 %). The result of the feed conversion ratio didn’t evince a significant difference, but; there was a numeric difference in treatment T3 with (1,54), which means that to produce 1kg of chicken meat, it is required to consume 1,54 kg of foodstuff. It was recorded a 2% of mortality of birds studied; the economic analysis about T3 reported (1,20) with 20 % of equivalent profitability, per each dollar invested it was obtained a profit of 0,20 cents. It is recommended to add levels of 37,5 % of 1,2 – propanediol to the formulated diet since the first day of birth; moreover, experiment diets with levels superior to 1,2 – propanediol in various climatic zones of the country to compare the results of the current study with the purpose to improve the productive and economic parameters.