Resíduo do beneficiamento de feijão em rações para ovinos

Abstract

Aimed to evaluate the inclusion of common bean residue in the diets of feedlot sheep. Evaluated the consumption apparent digestibility of dry matter (DM), organic matter (OM) and dietary nutrients and feeding behavior of the animals receiving the experimental diets. The experiment was conducted at the Federal University of Mato Grosso, Rondonópolis-MT campus. 16 sheep were used intact male, distributed in a completely randomized design with four treatments and four replications. Diets composed of 50% forage and 50% concentrate, in dry matter basis, were formulated with crude protein (CP) content of 12.22%. The treatments consisted of the inclusion of common bean residue in the concentrate, the level of 0, 10.1, 20.1 and 30.2% of the dry matter of diets. The experiment lasted twenty-one days, fifteen days for adaptation diets, the management and the environment-six days for data collection. The data were submitted to regression analysis, the choice of models based on the significance of regression parameters and the values of the coefficients of determination. There was linear effect (P<0.05) bean residue in the amounts of dry matter intake, crude protein, organic matter, ether extract and fiber indigestible neutral detergent expressed in g/animal/day, percentage of weight body (%PV) and metabolic weight (PV0,75). Fiber intakes of neutral detergent, non-fibrous carbohydrates and total digestible nutrients were not affected (P>0.05) due to the inclusion of common bean residue in the diets. A reduction in dry matter intake of 4.93 g/day; 0.01 %PV and 0.20 PV0,75 for each 1% inclusion of the residue. The crude protein intake in g/day,%PV and PV0,75 showed a linear decrease (P<0.05) with the inclusion of common bean residue in the diets. The fiber intake indigestible neutral detergent decreased 2.73 percentage units for each 1% inclusion of bean residue. Water consumption increased linearly (P<0.05) with the inclusion of common bean residue in the diets. Found a positive linear effect (P<0.05) the addition of bean residue on the digestibility of dry matter, crude protein, organic matter and neutral detergent fiber. The variables of feeding behavior, MS consumption g/day reduced with the inclusion of bean residue. The number of ruminated a day showed decreasing linear effect (P<0.05), a decrease of 0.66 percentage units for each 1% inclusion of bean residue. There was a quadratic effect (P<0.05) for average time spent on chews per ruminated bolus, the maximum values of 41.85 ruminated/seconds to the level of 10.3% inclusion bean residue in the diet. The total chewing time showed linear decrease (P<0.05) with the inclusion of common bean residue in the diet. There was no statistical difference (P>0.05) for the power efficiencies and rumination. The ruminating chews, in hours/day and no/chewing/cakes, a quadratic behavior (P<0.05), with maximum values of 14.52 hours/day and 66.54 chews/cakes for the levels of 13.00 and 2.61% bean residue in the diet. There was no effect (P>0.05) for the intake period and leisure, obtaining average values of 44.10 no/periods/day and 53.70 no/periods/day. The rumination period showed a quadratic effect (P<0.05), with estimated maximum of 42.90 no/periods/day for the level of 5.31% of inclusion of bean residue. There was no difference (P>0.05) for DM and NDF per meal (kg). There was no effect (P>0.05) for DM and NDF (min/kg), obtaining average values of 196.64 and 746.24 (min/kg). The rumination period showed a quadratic behavior (P<0.05), with maximum value of 4.97 hours, with 23.5% of inclusion of common bean residue in the diet DM. For rumination expressed in g/DM g/NDF cake/pie, unverified significant effect (P<0.05), the inclusion of bean residue. You can recommend the inclusion of common bean residue in the 30.2% level in the diet dry matter of confinement in sheep.