Elephant grass silage with the addition of crambe bran conjugated to different specific mass

Arilson   Moraes Cardoso; Saulo Alberto   do Carmo Araujo; Norberto  Silva Rocha; Felipe   Nogueira Domingues; Jorge   Cardoso de Azevedo; Lilian   de Araujo Pantoja

Elephant grass silage with the addition of crambe bran conjugated to different specific mass

Autores

Arilson Moraes Cardoso

Saulo Alberto do Carmo Araujo

Norberto Silva Rocha

Felipe Nogueira Domingues

Jorge Cardoso de Azevedo

Lilian de Araujo Pantoja

Editor

Universidade Estadual de Maringá

Descripción

This study aimed to evaluate the effects of inclusion of crambe bran concentrations (Crambe abyssinica Hochst.) with different specific masses in elephant grass silage (Penninsetum purpureum Schum.). For that, the bromatological and microbiological compositions of the experimental silages were determined. We used 48 mini silos distributed in a completely randomized design, arranged in a factorial 4 × 3, four levels of inclusion of crambe bran (0; 10; 20 and 30%) and three specific masses (400; 500 and 600 kg MN m-3), with four replications. After 240 days of fermentation the silos were opened. It was observed linear effect on DM, CP, NDFap, ADFap, HEM, LIG, NFC, TC and population of bacteria that produce lactic acid with the addition of crambe meal. There was interaction between the crambe bran factors and specific masses on the values of pH and N-NH3. For MM variables and yeast count there was a negative linear effect due to the evaluated specific mass. The inclusion of crambe bran helps to increase the fermentative profile and the bromatological composition of elephant grass silages studied, and the best results were obtained with the addition of 30% of this coproduct, based on the natural matter.