Nutritional characterization and ruminal degradability of corn silage stored in different silo types
DOI:
https://doi.org/10.5433/1679-0359.2025v46n5p1611Keywords:
Dry matter losses, Silage fermentation profile, Ruminal microbiota.Abstract
This study assessed the nutritional composition, ruminal degradability, physical losses, and fermentation profile of corn silage stored in either trench silos or silo bags. A randomized block design was applied, with two treatments and four replicates, each replicate consisting of one silo. Compared with trench silos, storage in silo bags was more effective at maintaining levels of non-fibrous carbohydrates (NFC) (388.2 vs. 417.7 g kg-1 DM), net energy of lactation (NEL) (1.560 vs. 1.591 Mcal kg-1 DM), total digestible nutrients (TDN) (685.9 vs. 698.4 g kg-1 DM), and relative feed value (RFV) (133 vs. 144). Conversely, corn silage stored in trench silos showed higher values for ash (27.3 vs. 29.8 g kg-1 DM), acid detergent insoluble protein (ADIP) (99.49 vs. 110.43 g kg-1 CP), neutral detergent fiber (NDF) (451.0 vs. 482.5 g kg-1 DM), hemicellulose (193.8 vs. 207.4 g kg-1 DM), and acid detergent fiber (ADF) (257.2 vs. 275.0 g kg-1 DM). Storage in silo bags also reduced dry matter losses throughout the feeding period compared to trench silos (8.20 vs. 6.10 % in the first period, 9.40 vs. 2.50 % in the second, and 9.70 vs. 2.60 % in the third).
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Copyright (c) 2025 Mikael Neumann, Valéria Kalinovski, Ellen Baldissera, Dayana Rochinski da Silveira Pinto, Leonardo Huçalo, Paulo Victor Pinheiro Cesar, Luísa da Costa Venancio, Arno Passarin Filho, Caroline Bordignon da Rosa, Daniel Corrêa Plodoviski
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