DEGRADABILIDADE RUMINAL DE DIETAS CONTENDO PALMA FORRAGEIRA ASSOCIADA AO FENO DE LEUCENA PARA RUMINANTES.

• Ano de defesa: 2018
• Autor(a) principal: ALVES, Fabiana Castro
• Orientador(a): MOREIRA FILHO, Miguel Arcanjo
• Banca de defesa: MOREIRA FILHO, Miguel Arcanjo , PARENTE, Michelle de Oliveira Maia, ARAÚJO, Daniel Louçana da Costa
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Maranhão
• Programa de Pós-Graduação: PROGRAMA DE PÓS-GRADUAÇÃO EM CIÊNCIA ANIMAL (25.06)/CCAA
• Departamento: DEPARTAMENTO DE BIOLOGIA/CCBS
• País: Brasil
• Palavras-chave em Português: Leucaena leucocephala; Nopalea cochenillifera; Valor nutritivo
• Palavras-chave em Inglês: Leucaena leucocephala; Nopalea cochenillifera; Nutritive value
• Área do conhecimento CNPq: Avaliação de Alimentos para Animais.
• Link de acesso: https://tedebc.ufma.br/jspui/handle/tede/2173

The objective of this study was to evaluate the in situ ruminal degradability of diets containing forage palm associated with leucine hay as a source of fiber for ruminants. A randomized block design (fistulated cattle) was used, with three treatments that consisted of diets containing: 65% of forage palm (PF) associated with 35% of leucine hay (FL); 55% PF associated with 45% FL and 45% FP associated with 55% FL, on plots subdivided in incubation times in rumen 3; 6; 12; 24 and 72 hours. There was greater (P < 0.05) soluble fraction (a), potentially degradable (b), potential degradation (DP) and effective (DE) of DM and CP to diets containing 65% PF associated with 35% of FL, however, the SD of DM and CP obtained for all the diets declined as increased pass rate (2, 5 and 8% / hour). Largest potentially degradable fraction of NDF (76.40%) and lower pass rate (3.55% / hour) were observed for a diet containing 65% PF associated with 35% FL. There was an effect (P <0.05) of diets for NDF degradation, with a higher value obtained with a diet containing 65% PF associated with 35% FL (38.89%). There was no effect (P> 0.05) on the interaction of diet x time of incubation for degradation of DM, CP and NDF, however were observed quadratic effect of the incubation time (P < 0.05) on the degradation of these rations constituents. The association of 65% PF with 35% FL increases the in situ ruminal degradability of DM, CP and NDF of diets for ruminants, which justifies the recommendation and use in the feeding of these animals.