YUCCA SILAGE. AN ALTERNATIVE FOR FEEDING SWINE CATTLE | ENSILAJE DE YUCA. UNA ALTERNATIVA PARA LA ALIMENTACIN DEL GANADO PORCINO

Spanish; Castilian. Se utilizaron 24 cerdos en crecimiento-ceba del cruce comercial (Yorkshire x Landrace x Duroc) con un peso vivo inicial de 25 kg y distribuidos segn diseo completamente aleatorizado con el objetivo de evaluar el consumo de ensilaje de raz de yuca. Se evalu el comportamiento productivo de los animales y se determin el peso (kg), la ganancia media diaria (g/da) y el ndice de consumo total de alimento (kg) a los 30, 60 y 90 das de comenzada la prueba. Para el estudio se utilizaron tres tratamientos experimentales: I dieta control a base de harina maz y harina de soya, II y III 20 % y 40 % de inclusin de ensilado de yuca, respectivamente. Los animales se distribuyeron a razn de ocho por tratamiento y la unidad experimental fue de un animal por corral. Para el peso vivo a los 30 das de la prueba se evidenci un mejor comportamiento en el tratamiento donde los animales consumieron la dieta control, seguido por aquellos que comieron el 20 % del ensilado de yuca, sin embargo, a los 60 y 90 das de estudio, el peso vivo de los animales fue similar en los tratamientos II y III. En cuanto a la ganancia media diaria se observ diferencias significativas con respecto al tratamiento control (P0.05) y a los 60 y 90 das de experimento los cerdos presentaron igual comportamiento en las tres dietas experimentales, por lo que no se present cambios en su respuesta. Los resultados indican que es posible la sustitucin hasta el 40 % de la dieta convencional estudiada por ensilado de yuca, como una alternativa alimentaria para los cerdos en crecimiento-ceba.

English. There were used 24 pigs in growing-fattening stage from the commercial cross Yorkshire x Landrace x Duroc, with an initial live weight of 25 kg. They were distributed according a totally randomized design in order to assess the intake of yucca root silage. It was assessed the productive performance of the animals, and there were determined the weight (kg), average daily gain (g/day) and the index of total consumption of the feed (kg) at 30, 60 and 90 days of trial. In the study there were applied three experimental treatments: I witness diet based on corn meal and soybean meal, II and III with 20 % and 40 % of inclusion of yucca silage, respectively. The animals were randomly distributed at a ratio of eight per treatment and the experimental unit was consisted of one animal per pen. For the live weight at 30 days of the experiment, it became evident a better performance in the treatment were the animals took the control diet, followed by the one with the 20 % of yucca silage. Nevertheless, at the 60th and 90th days, the live weight of the animals in treatments II and III were similar. As for the average daily gain, there were found significant differences compared to the witness treatment (p0.05) and at the 60th and 90th days of the trial the pigs had the same performance in the three experimental diets, therefore, no changes were found in their response. The results indicate it is posible to use yucca silage to substitute up to 40% of the conventional diet under study, as a viable alternative for growing-fattening stages.