Bromatological characterization and fermentative profile of elephant grass silage mixed with alternative ingredients

• Published in: Research, Society and Development
• Main Authors: Borges, Letícia da Silva, Peixoto, Renato Mesquita, Pinedo, Lerner Arévalo, Santos, Betina Raquel Cunha dos, Ribeiro, Angelita Alecchandra, Oliveira, Palloma Vitória Carlos de, Amorim, Dayana Souza, Chacón, Salvador González, Firmino, Salenilda Soares
• Format: Article in Journal/Newspaper
• Language: Portuguese
• Published: Research, Society and Development 2020
• Subjects: Materia seca; Nopalea cochenilifera; pH; Temperatura; Theobroma grandiflorum; Dry matter; Temperature; Matéria seca; Elefante; Torta; DML
• Online Access: https://rsdjournal.org/index.php/rsd/article/view/8207; https://doi.org/10.33448/rsd-v9i9.8207

The objective was to evaluate the chemical composition, fermentative profile and fermentative losses of elephant grass (EG) silage with different levels of forage palm (FP) and cupuaçu seed cake (CSC). A completely randomized design (CRD) was adopted, in a 2x3+2 factorial scheme, with five replicates each, totaling 40 experimental mini silos, with storage for 50 days. Eight treatments were evaluated, one consisting only of EG, a pool containing 40% EG, 30% CSC and 30% FP, both mixtures at levels of 20, 40 and 60%. After opening, dry matter losses (DML), by gases (GL) and effluents (EL) were measured. Bromatological parameters and hydrogen potential (pH) were determined, organic acids and ammoniacal nitrogen were determined. Aerobic stability was determined by measuring the temperature at times 0, 12, 24, 48, 72 and 96 hours after opening the silos. For dry matter, there was a quadratic variation (P<0,05), where the pool and treatments with inclusion of 40 and 60% CSC obtained the lowest pH value (4,22). It was concluded that EG losses were minimized with the inclusion of 60% CSC, while the pool was intermediate, both in bromatological and fermentative terms. El objetivo fue evaluar la composición química, perfil fermentativo y pérdidas fermentativas del ensilado de pasto elefante (PE) agregado con diferentes niveles de palma forrajera y torta de semilla de cupuaçu. Se adoptó un diseño completamente aleatorizado (DCA), en un esquema factorial 2x3+2, con cinco repeticiones cada una, totalizando 40 mini silos experimentales, con almacenamiento por 50 días. Se evaluaron ocho tratamientos, uno que consistió solo en PE, un grupo que contenía 40% de PE, 30% de TSC y 30% de PF, mientras que los seis tratamientos restantes fueron solo PE ensilada con TSC, o con PF, ambas mezclas a niveles de 20, 40 y 60%. Después de la apertura, se midieron las pérdidas de materia seca (PMS), por gases (PG) y efluentes (PE). Se determinaron los parámetros bromatológicos y el potencial de hidrógeno (pH), se determinaron los ácidos ...