Drug Susceptible and Bacteriostatic Tests of Two Strains of Bacillus Subtilis of Yak Origin
Two yak-derived Bacillus subtilis strains were subjected to a drug susceptible y test for 10 antimicrobial drugs and an inhibition test for three pathogenic bacteria.The results showed that BS-1 strain was moderately sensitive to ceftriaxone,streptomycin and cotrimoxazole in the drug susceptible test,and BS-2 strain was moderately sensitive to ceftriaxone,and both strains were highly sensitive to kanamycin,chloramphenicol,norfloxacin,amikacin,ciprofloxacin,gentamicin,and ofloxacin;and in bacteriostatic test BS-1 and BS-2 had certain bacteriostatic activity on Escherichia coli,Salmonella,and Staphylococcus aureus.But the bacteriostatic activity of BS-2 is relatively stronger,and it has the potential of being developed into a probiotic preparation.
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维普
