In vitro Lactococcus lactis PTCC 1403 versus standard antibiotic inhibition of bovine mastitis pathogens.

摘要

The inhibition of L. lactis PTCC 1403 was evaluated by agar spot test against contagious and environmental mastitis pathogen strains isolated from milk from cows with mastitis and compared with commonly used antibiotics. L. lactis PTCC 1403 produced inhibition of all pathogenic strains particularly against Pseudomonas aeroginosa and Arcanobacterium pyogenes with average inhibition zones of 15.2 mm and 14.8 mm respectively. Environmental mastitis pathogens were more susceptible to inhibitory effects of L. lactis PTCC 1403 than contagious mastitis pathogens.