Carbohydrate and protein fractioning of grass silages with added dehydrated brewery residue

Abstract This study aimed to measure the carbohydrate and protein fractioning of silage of Brachiaria brizantha cv. Marandu (BBS). The experiment was a completely randomized design with five treatments and five repetitions to evaluate the inclusion of dehydrated brewery residue (DBR) to Marandu grass silage at levels of 0, 10, 20, 30 and 40% fresh matter basis. The DBR inclusion resulted in a linear reduction (P<0.05) of total carbohydrate content, which decreased 0.35% per unit of residue added. The content of fraction B2 decreased linearly as DBR was added (P<0.05). Nitrogen content increased linearly when residue was added to silage of Marandu grass (P<005). Fraction A, obtained from Marandu grass, presented a linear increasing behavior according to the inclusion of DBR. This inclusion promoted a linear decrease (P<0.05) of fraction B1+B2, which resulted in a 0.37% reduction for each 1% of byproduct added. Dehydrated brewery residue is a good source of additives for ensiling Marandu grass, by considerably improving fractions of proteins and carbohydrates. The level of addition of 40% is recommended for providing better nutritional value to silage.

Bibliographic Details

Main Authors:	Ferreira,Daniele de Jesus, Zanine,Anderson de Moura, Lana,Rogério de Paula, Souza,Alexandre Lima de, Negrão,Fagton Mattos, Geron,Luiz Juliano Valério, Parente,Henrique Nunes, Parente,Michelle de Oliveira Maia
Format:	Digital revista
Language:	English
Published:	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2018
Online Access:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202018000200192
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