Título:	In situ ruminal degradability of forage cactus-based diets associated with pornunça silage.
Autoria:	GOMES, M. L. R. SILVA FILHO, J. R. V. da ALVES, F. C. SILVA, M. N. P. da SOUZA, C. M. de SOUZA, L. C. de VOLTOLINI, T. V.
Afiliação:	MARIA LETÍCIA RODRIGUES GOMES, UFPB; JOSÉ RENALDO VILAR DA SILVA FILHO, UNIVASF; FABIANA CASTRO ALVES, UNIVASF; MARIA NAIARA PEREIRA DA SILVA, UNIVASF; CLESIO MORGADO DE SOUZA, UNIVASF; LUARA COELHO DE SOUZA, UPE; TADEU VINHAS VOLTOLINI, CPATSA.
Ano de publicação:	2023
Referência:	Semina: Ciências Agrárias, v. 44, n. 2, p. 549-566, mar./abr. 2023.
Conteúdo:	The knowledge of ruminal degradation kinetics of forage cactus-based diets associated with Euphorbiaceae species of the genus Manihot assist in understanding nutrient quality and use, contributing to the indication of combinations of theseingredients in ruminant diets. This study aimed to evaluate the in situ ruminal degradability of diets with increasing association of forage cactus Elephant Ear (MEE) and pornunça (Manihot sp.) silage, as well as to analyze and evaluate the indigestible neutral detergent fiber (FDNi) content of forage cactus MEE and pornunça silage. The treatments consisted of diets with cactus pear associated with pornunça silage in the roughage portion in the proportions of 375, 250, 125 and 0 g kg-1 of DM. The feed was composed of 50% roughage and 50% concentrate of dry matter. Incubation times of 0, 6, 12, 24, 48, 96, and 144 hours were evaluated for the ingredients and 0, 2, 4, 6, 8, 12, 24, 48, 72, and 96 hours for the diets. Incubation to obtain the iNDF was given for 288 hours. The experimental design consisted of randomized blocks, with three replications. Regarding roughage ingredients, MEE showed higher average disappearance, potential degradability (PD), and effective degradability (ED) in relation to pornunça silage, as well as lower NDFi content. The proportion of 375 g kg-1 MEE and 125 g kg-1 pornunça silage provided higher fractions a, b, and c, increasing ED considering the three passage rates, with higher PD. In conclusion, the association between MEE and pornunça silage at a proportion of 375 g kg-1 MEE and125g kg-1 pornunça silage of the roughage portion increases the in situ degradability of dry matter, crude protein, and neutral detergent fiber.
Thesagro:	Euphorbiaceae Palma Forrageira Silagem Dieta
NAL Thesaurus:	Opuntia stricta Forage Manihot
Palavras-chave:	Forage cactus Orelha de Elefante Mexicana Silage de pornunça
Digital Object Identifier:	10.5433/1679-0359.2023v44n2p549
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPATSA)