The white oat forage dehydration method alters the carbohydrate concentration and degradation kinetics of haylage

The white oat forage dehydration method alters the carbohydrate concentration and degradation kinetics of haylage

ABSTRACT: This study assessed the effect of three oat forage dehydration methods on carbohydrate composition, rumen dry matter (DM) and neutral detergent fiber (NDF) degradation, and the degradation kinetics of carbohydrates via gas production from haylage. The dehydration methods tested were Mechan...

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Main Authors: André Martins de Souza, Mikael Neumann, Ellen Baldissera, Daniel Corrêia Plodoviski, Fernando de Souza Sidor, Leonardo Huçalo, Tainá Scabori Vargas, Valter Harry Bumbieris Junior
Format: Article
Language:English
Published: Universidade Federal de Santa Maria 2025-03-01
Series:Ciência Rural
Subjects:
non-fibrous carbohydrates
rumen fermentation
effective degradability
gas production
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782025000600201&lng=en&tlng=en
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Summary:ABSTRACT: This study assessed the effect of three oat forage dehydration methods on carbohydrate composition, rumen dry matter (DM) and neutral detergent fiber (NDF) degradation, and the degradation kinetics of carbohydrates via gas production from haylage. The dehydration methods tested were Mechanical (MEC); Mechanical + Bacterial chemical compound (M+BCC), composed of Bacillus amyloliquefaciens (7799) 1.0 x 109 CFU, Bacillus subtilis (CCT 0089) 1.0 x 109 CFU, Propionibacterium acidipropionici (7751) 1.0 x 109 CFU, potassium sulfate, and cellulase; and Chemical (CHEM), applied with glyphosate. The haylage obtained by M+BCC dehydration exhibited lower fibrous carbohydrate content (21.2% hemicellulose, 27.3% cellulose) and 3.2% lignin. The haylageobtained by the CHEM method had higher total carbohydrate content and fractions B2 and C (74.2, 47.1, and 13.7%, respectively). Gas production from the degradation of fibrous and non-fibrous carbohydrates was higher for the M+BCC method (196.9 mL g-1 of DM), followed by the MEC method (164.3 mL g-1 of DM) and CHEM (151.7 mL g-1 of DM). We recommended that haylage can be prepared from forage dehydrated using the M+BCC method, since it showed a lower proportion of structural carbohydrates, and higher DM and fibrous fraction degradation.
ISSN:1678-4596

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