NUTRITIVE VALUE OF ELEPHANT GRASS SILAGE AT DIFFERENT REGROWTH AGES

• Autor(a) principal: Sauceda, Mayra Suyapa
• Data de Publicação: 2023
• Outros Autores: Gonçalves de Abreu, Joadil, Barros Assis, Lucas Matheus, Ferreira, Eduardo André, Lima Corrêa Abreu, Matheus, de Faria, Dayana Aparecida
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Nativa (Sinop)
• Texto Completo: https://periodicoscientificos.ufmt.br/ojs/index.php/nativa/article/view/14272
• topic: aditivo; características fermentativas; Pennisetum purpureum

The objetive of this study was to evaluate the nutritive value and fermentative characteristics of elephant grass silage at different regrowth ages with whole rice meal. The design was in randomized blocks with five treatments (ages: 42, 60, 76, 91 and 105 days of regrowth) and four replications. Whole rice meal was used at 10% of the roughage applied to elephant grass forage before ensiling. Dry matter (DM), soluble carbohydrates (SC), buffer capacity (BC), fermentation coefficient (FC); pH value, ammonia nitrogen (N-NH3), DM ash, acid detergent-insoluble fiber (ADF) and neutral detergent-insoluble fiber corrected for ash and protein (NDFap), neutral detergent-insoluble protein (NDIP) and acid (ADIP) ), indigestible neutral detergent insoluble fiber (iNDF), net lactation energy (NEL), in vitro dry matter digestibility (IVDM), gas asymptotic volume (Vf) and fraction digestion rate rapidly (k1) and slowly (k2 ) digestible, latency (L) were analyzed. Except for NDIP and K2 rate, there was a significant linear effect (P<0.05) for the analyzed variables. It is recommended to ensil the elephant grass with rice bran at 10% of the bulky matter until the age of 60 days, providing silages with nutritional value superior to the other analyzed regurgitation ages.