
El objetivo de este trabajo fue evaluar el efecto de las dietas basadas en Erythrina sp sobre las caracteristicas productivas del animal y su carcasa. Se utilizaron 32 cuyes machos ( Cavia porcellus ) distribuidas en 4 tratamientos que recibieron dietas basadas en Erythrina sp (P) y alimento concentrado comercial (C) en las proporciones de 100:0% (Control), 75:25% (P75/C25), 50:50% (P50/C50) y 25:75% (P25/C75) respectivamente. Para evaluar el efecto de las dietas sobre algunas caracteristicas productivas y las propiedades tecnologicas de la carcasa se utilizo el diseno completo al azar con un nivel de confianza de 95%, y la diferencias entre promedios fue estimado con la prueba de Tukey (P≤0.05). El suministro de estas dietas a los animales, produjeron variaciones (P≤0.05) sobre el incremento de peso vivo y el rendimiento de la canal. De manera similar, se han encontrado variaciones (P≤0.05) en el pH, capacidad de retencion de agua e indices de coloracion de la carcasa. La dieta P50/C50 basada en una mezcla de Erythrina sp y concentrado comercial proporcionaron un efecto beneficioso sobre las caracteristicas productivas sin afectar la calidad de la carne respecto a las demas dietas. ABSTRACT The objective from work was to evaluate the effect of diets based on Erythrina sp on the productive characteristics of the animal and its carcass. We used 32 male guinea pigs ( Cavia porcellus ) distributed in 4 treatments that received diets based on Erythrina sp (P) and commercial concentrated (C) feed in the proportions of 100:0% (Control), 75:25% (P75/C25), 50:50% (P50/C50) and 25:75% (P25/C75) respectively. To evaluate the effect of the diets on some productive characteristics and the technological properties of the carcass, was used a completely randomized design with a confidence level of 95%. The differences between averages were determined with Tukey test (P≤0.05). Diets supply to the animals produced variations (P≤0.05) on the increase of live weight and the yield of the carcass. Similarly, variations (P≤0.05) have been found in pH, water retention capacity and carcass coloring rates. The diet P50/C50 based on a mixture of Erythrina sp and commercial concentrate provided a beneficial effect on the productive characteristics without affecting the quality of the meat with respect to the other diets. Key words: fodder shrubs, guinea pig meat, body condition, water holding capacity
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