TITLE

EFFECT OF ENSILING RED CLOVER-RYEGRASS USING BLENDS OF HOMO-AND HETEROFERMENTATIVE LACTIC ACID BACTERIA ON FERMENTATION CHARACTERISTICS, AEROBIC STABILITY AND HYGIENIC PARAMETERS

AUTHOR(S)
Jatkauskas, Jonas; Vrotniakienė, Vilma
PUB. DATE
June 2012
SOURCE
Veterinarija ir Zootechnika;2012, Vol. 58 Issue 80, p13
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The second cut of a second-year red clover (Trifolium pretense L.) and perennial ryegrass (Lolium perenne L.) mixture (50:50 on fresh weight basis; 265 g dry matter kg -1) was ensiled in 3.0 litre laboratory bottles. The forage was ensiled (I) without additive, and (I1) with homo-and heterofermentative lactic acid bacteria (LAB) blend (L. plantarum, E. faecium and L. buchneri) or (I2) homofermentative LAB blend (E. faecium, L. lactis, L. plantarum). Application rates of the additives I1 and 12 were 250 000 cfu g -1 and 150 000 cfu g-1 fresh forage weight respectively. Both inoculants significantly increased dry matter content and retained significantly higher water-soluble carbohydrates compared to the uninoculated controls. Bacterial blends I1 and I2 had a positive effect on red clover-ryegrass silages with significantly lower pH and shifting fermentation toward lactic acid with homofermentative LAB (I2) or toward acetic acid with homo-and heterofermentative LAB (I1). Both inoculated silages had significantly lower ammonia-N, butyric acid, alcohols concentrations and in-silo DM loss. The application of both the additives was sufficient to inhibit clostridia, yeast and moulds growth and increased silages aerobic stability.
ACCESSION #
79200636

 

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