| Popis: |
El objetivo de este trabajo fue el evaluar el efecto de inclusión de maíz (0, 10, 20, 30 y 40%) en alimentos a base de caña de azúcar fermentada en la degradación efectiva (DE) y el peso de ovinos de pelo corto. Las dietas, Saccharina, Saccharina +10, 20, 30, y 40% de maíz, fueron evaluadas. La DE e in situ de la material seca (MS) y la fibra detergente neutra (FDN) fueron evaluadas de acuerdo a un diseño completamente al azar con arreglo factorial. Se evaluó el consumo voluntario y la ganancia de peso en 24 ovinos (Kathadin x Pelibuey), de un peso promedio de 17 ±3 kg, con un arreglo completamente al azar. Con excepción de DE de MS y la tasa de degradación, el tratamiento al 10% presentó los niveles más altos de degradación in situ (MS=75.90%, FDN=53.70%), DE (FDN=60.81%), FS (MS=73.14%, FDN=51.31%), presentando valores más bajos al 0%. Los ovinos alimentados con 40% tuvieron el mayor consumo, con diferencias significativas. Los animales con mayor peso fueron los que recibieron la dieta con el 30% de maíz, sin embargo, no existieron diferencias significativas en el cambio de peso y en el promedio de la ganancia diaria de peso. La aportación de maíz en las dietas a base de Saccharina mejoró la degradación y el consumo del mismo, sin embargo, no se encontraron diferencias significativas en las ganancias de peso que pudieran estar relacionadas a bajos niveles de consumo y proteína cruda en las dietas. _______________ DEGRADATION ASSESSMENT OF EFFECTIVE AND PRODUCTIVE PERFORMANCE HAIR SHEEP FED SACCHAMAIZ. ABSTRACT: The objective of this work was to assess the effect of including corn (0, 10, 20, 30 and 40%) on effective degradation and weight gain in short-haired sheep fed a fermented sugarcane-base diet. The diets, Saccharin, Sacchamaiz +10, 20, 30 and 40% of corn, were evaluated. The effective and in situ degradation of dry matter (DM) and neutral detergent fiber (NDF) were evaluated, according to a completely randomized design with factorial arrangement. On fieldwork, voluntary intake and weight gain were evaluated in 24 sheep (Kathadin x Pelibuey) with an average weight of 17 ± 3 kg. The behavior evaluation had a completely randomized arrangement. The treatments were randomly assigned among the four diets. Except of MS and the degradation rate, the treatment at 10% had the highest levels of degradation in situ (MS=75.90% NDF=53.70%), DE (NDF=60.81%), FS (MS=73.14%, NDF=51.31%), with lower values at 0%. The sheep were fed 40% increased consumption, with significant differences. Animals with greater weight were fed the diet with 30% corn, however, no significant differences in weight change and average daily weight gain. The contribution of maize-based diets improved Saccharina degradation and consumption of it, however, no significant differences in weight gains that could be related to low levels of consumption and crude protein in diets. |
