02370naa a2200325 a 450000100080000000500110000800800410001902400630006010000230012324501000014626000090024650000140025552013880026965000180165765000360167565000110171165300300172265300250175265300220177765300240179965300200182370000210184370000200186470000200188470000200190470000170192470000200194170000170196177300660197821181402024-02-06       2019    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.5433/1679-0359.2019v40n5Supl1p24272DOI1 aFERREIRA, A. C. H.  aIn situ degradability of elephant grass ensiled with acerola by-product.h[electronic resource]  c2019  aSuppl. 1.  aThis study evaluated the inclusion of increasing contents (0; 35; 70; 105 and 140 g kg-1) of dried acerola fruit (Malpighia glabra, Linn.) by-product (DABP) in the ensilage of elephant grass (Pennisetum purpureum, Schum.) considering the in situ degradability of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF) and hemicellulose. Plastic drums with 210 L capacity were used as experimental silos. After 45 days of ensiling, silos were opened and silage samples were collected for the degradability trial and laboratory analysis. For the in situ degradability trial, was used one rumen-fistulated adult male cattle. The five by-product inclusion contents were tested in three replicates, with five incubation times, in a randomized complete split-plot design in which the contents of DABP were the treatments (plots), the different silos were the replicates and the incubation times were the sub-plots. Longer incubation times significantly increased (P &lt 0.05) the disappearance rates of DM, CP, NDF, ADF and hemicellulose. The effective degradability of the DM, NDF and hemicellulose was higher in the silages with 35 g kg-1 of DABP in the rumen passage rates of 0.02; 0.05 and 0.08 h-1. Dried acerola fruit by-product can be added to elephant grass ensiling up to 35 g kg-1 without reducing the effective degradability of nutrients.  adigestibility  aTropical and subtropical fruits  aRúmen  aAgroindustrial by-product  aFeedstuff evaluation  aNutritional value  aRuminal degradation  aTropical fruits1 aRODRIGUEZ, N. M.1 aNEIVA, J. N. M.1 aPIMENTEL, P. G.1 aLOPES, F. C. F.1 aGOMES, S. P.1 aMIZUBUTI, I. Y.1 aPINTO, A. P.  tSemina: Ciências Agráriasgv. 40, n. 5, p. 2427-2438, 2019.