Study on in vitro bacterial inhibition of medicinal plant extracts for Staphylococcus aureus, Streptococcus spp. and E.coli isolated from the metritis in dogs and experimental treatment

Abstract

This study was conducted to evaluate the suceptibility of bacteria to 14 common antibiotics used in veterinary, to investigate in vitro bacterial inhibition of 3 medicine plant exctracts (Eupatorium odorata L.; Excoecaria cochinchinensis Lour; Caesalpinia sappan) for Staphylococcus aureus, Streptococcus spp. and E.coli . The studied results showed that Staphylococcus aureus, Streptococcus spp. and E.coli resisted to 14 common antibiotics . At concentration of 100mg/ml, 3 medicine plant extracts performed high inhibition to 3 bacteria, the bacterial inhibition zone was ranked from 18.33 mm to 33.67 mm . The extract of Excoecaria cochinchinensis Lour showed the best anti-bacterial efficiency. This extract remained the anti-bacterial effect to Staphylococcus aureus and Streptococcus spp. at concentration of 0.195mg/ml and 3 medicine plant extracts at concentration of 0,78 mg/ml effected to E.coli inhibition. The experimental treatment for the metritis dogs showed that extract of Excoecaria cochinchinensis Lour has given good treatment result.