Antimicrobial susceptibility of some bacteria causing reproductive tract inflamation of sows after farrowing in Thoai Son district, An Giang province and experimental treatment

Abstract

This study was conducted to identify the antimicrobial susceptibility of the bacteria strains
isolated from the uterine fluid of sows after farrowing so as to serve for treatment of reproductive
tract inflamation in the sows. The disk diffusion procedure was used to determine the susceptibility
of bacteria to antibiotics. There were 122 bacteria strains (E. coli, Sta. areus, Streptococcus spp.
and P. aeruginosa) isolated from uterine and vaginal fluid of the sows after farrowing in Thoai Son
district. These bacteria strains showed the antibiotic susceptibility at high level to the ß-lactam
antibiotics (amoxicillin/clavulanic acid, cefotaxime, cefuroxime, ceftazidime) and doxycycline
(tetracycline group).
Three experimental treatment regimens were used to treat the reproductive tract inflammation
of 24 sows to determine the efficacy of antibiotic candidates. The experimental treatment results
showed that the efficacy of three treatment regimens was very high (100% of the disease sows were
recovered). Of which, the third treatment regimen was the best, that was shortest therapy duration
(3.6 ± 0.74 days), fast recovery of reproductive function (5.63 ± 0.74 days), and high pregnancy rate
(100%) at the first oestrus after weaning.