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The effect of mixed bacterial inoculant on the microbial population and aerobic stability of lucerne and maize balage

R. Stoškus 1  ,  
J. Jatkauskas 1,  
V. Vrotniakiene 1,  
V. Juozaitiene 2
 
1
Lithuanian University of Health Sciences, Institute of Animal Science, R. Zebenkos 12, LT-82317 Baisogala, Radviliskis distr., Lithuania
2
Lithuanian University of Health Sciences, Faculty of Animal Husbandry Technology, Department of Animal Breeding and Nutrition, Tilzes 18, LT-47181 Kaunas, Lithuania
J. Anim. Feed Sci. 2019;28(4):383–391
Publication date: 2019-12-27
DOI: https://doi.org/10.22358/jafs/114138/2019
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References (26)
 
KEYWORDS
aerobic treatment, fermentation, inoculation, silage
TOPICS
feed additives, feed materials
ABSTRACT
Two forages, maize (Zea mays) and lucerne (Medicago sativa), having opposite fermentability coefficient, were ensiled in big bales for 120 days without and with application of a dual purpose bacterial inoculant containing Lactococcus lactis and Lactobacillus buchneri at 1.5 × 105 cfu/g of fresh forage. The experiments were performed using the random sampling method, where each big bale was an experimental unit. The combination of each raw material and the inoculant was replicated ten times. Inoculated maize and lucerne silages had greater level of lactic acid (P < 0.01) and acetic acid (P < 0.01) as well as reduced pH value (P < 0.01) than not inoculated ones. Application of bacterial inoculant decreased yeast (P < 0.01) and mould (P < 0.01) counts and increased lactic acid bacteria count (P < 0.01). Inoculant had a positive effect on aerobic stability by delaying aerobic deterioration time. The inoculation of maize and lucerne was effective at improving the fermentation aerobic stability and decreasing yeast and mould growth.
CORRESPONDING AUTHOR
R. Stoškus   
Lithuanian University of Health Sciences, Institute of Animal Science, R. Zebenkos 12, LT-82317 Baisogala, Radviliskis distr., Lithuania
 
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