Título:	In situ degradability of elephant grass ensiled with acerola by-product.
Autoria:	FERREIRA, A. C. H. RODRIGUEZ, N. M. NEIVA, J. N. M. PIMENTEL, P. G. LOPES, F. C. F. GOMES, S. P. MIZUBUTI, I. Y. PINTO, A. P.
Afiliação:	FERNANDO CESAR FERRAZ LOPES, CNPGL ANDRÉA PEREIRA PINTO, UFC.
Ano de publicação:	2019
Referência:	Semina: Ciências Agrárias v. 40, n. 5, p. 2427-2438, 2019.
Conteúdo:	This 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 < 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.
Thesagro:	Rúmen
NAL Thesaurus:	Tropical and subtropical fruits digestibility
Palavras-chave:	Agroindustrial by-product Ruminal degradation Feedstuff evaluation Nutritional value Tropical fruits
Digital Object Identifier:	https://doi.org/10.5433/1679-0359.2019v40n5Supl1p2427
Notas:	Suppl. 1.
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPGL)