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The effects of three silage inoculants on aerobic stability in grass, clover-grass, lucerne and maize silages

Jatkauskas, J.; Vrotniakiene, V.; Ohlsson, C.; Lund, B.

Agricultural and Food Science 22(1): 137-144

2013

ISSN/ISBN: 1459-6067
Accession: 066271058
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The objective of the study was to investigate the effects of homofermentative and heterofermentative lactic acid bacteria (LAB) inoculants on fermentation and aerobic stability in a variety of crops and dry matter concentrations. The experiments were conducted with lucerne, ryegrass, ryegrass-timothy, red clover-ryegrass and whole crop maize using three additives in laboratory scale conditions. Each treatment and crop was replicated five times when determining the chemical composition and aerobic stability in the silage. The data were statistically analyzed as a randomized complete block by using the GLM procedure of SAS. Additive application reduced pH and formation of butyric acid, alcohols and ammonia-N in all crops compared with the untreated silage (p < 0.05). The use of additives increased the content of lactic acid except heterofermentative LAB in maize with 276 g kg(-1) DM and increased the content of acetic acid except homofermentative LAB in ryegrass-timothy and maize with 276 g kg(-1) DM compared with the untreated silage (p < 0.05). It was observed that the aerobic stability of silages was improved significantly (p < 0.05) by using homofermentative and heterofermentative LAB inoculants.

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Related References

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