In situ degradability of elephant grass silages with addition of mango by-product.
Ręgo A. C. do, Cândido M. J. D., Pereira E. S., Cavalcante M. de A. B., Feitosa J. V., Gomes F. H. T., Neiva J. N. M., Ręgo M. M. T.
Author Affiliation: UFLA, Brazil.
Revista Cientifica de Producao Animal 10 : 28-36
Abstract : To evaluate the dry matter, crude protein and neutral detergent fiber in situ degradation of elephant grass silages with five levels (0; 4; 8; 12 and 16%, on a fresh matter basis) of mango by-product, (MBP) this work was carried out. A randomized completely design in split-plot, consisting the addition levels the plots and the incubation times the sub-plots, with four replicates, was adopted. For the silages making, the elephant grass was cut 70 days-old and mixed to the by-product, in 20 plastic drums. The samples were dried, grid in a bolter of 5.0 mm mesh, being used 3.0 g of samples in each nylon bag, for incubation in the rumen for 0, 6, 48 e 96 h. The samples were dried, grid in a bolter of 5.0 mm mesh, being used 3.0 g of samples in each nylon bag, for incubation in the rumen for 6, 48 e 96 h. two ram without defined breed were used. The bags corresponding to the time 0 h. were washed in running water. For the DM and CP the disappearance increased until the level 12% of addition of MBP to the elephant grass silages for the incubation times 48 and 96 h. For the NDF the disappearance not increased with the addition for the incubation times 0, 6 e 48 h. For the whole of parameters of degradation, was observed that the level of addition of 12% of MBP presented the most values for the potential and effective degradability of variables in question. The addition of the mango by-product to the grass increased the silages degradability, so it should be recommended level up to 12% of this by-product.