In vitro degradation and gas production of brachiaria grass with levels of biodiesel byproducts

• Autor(a) principal: Freire, Juliana Marques
• Data de Publicação: 2017
• Outros Autores: Silva, Aderbal Marcos de Azevedo, Carneiro, Heloisa, Pereira Filho, José Morais, Bezerra, Leilson, Bidler, Denise Cristiane
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Acta Scientiarum. Animal Sciences (Online)
• Texto Completo: https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/32832
• topic: digestibility; ruminal fermentation; protein.

This study aimed to evaluate the in vitro degradability and gas production in diets containing byproducts from the national biodiesel industry (castor bean, canola, forage radish and black sunflower) replacing Brachiaria grass in four levels (0, 30, 50 and 70%). The inoculum for in vitro incubation was obtained from three fistulated Holstein cows. The experimental design was 4 x 4 factorial completely randomized experimental design consisting of four byproducts and four levels. All byproducts studied had a significant effect (p < 0.05) on in vitro digestibility. The castor bean byproducts promoted the lowest cumulative gas production at the end of 48 hours incubation. Regarding digestibility, the byproducts of canola and radish at 70% level did not affect the degradability of dry matter.