Antibiotic resistance of bacterial pathogens isolated from clinical mastitis in intensive bovine breeding)

The objetive of the present study is to determine antibiotics' resistance developed by bacterial agents that produce bovine mastitis in intensive of four farming in Lurin. In this context, 139 samples were collected in sterile vials, keeping them at 4°C while taking them to the Microbiology Laboratory. Then, the samples were sown on agars Mc Conkey and blood, incubitating them at 37°C for 4 hours to proceed to the identification of bacteria, resulting in the presence of Staphylococcus aureus (24.84 ± 6.76)%, Streptococcus agalactiae (15.92 ± 5.72)%, Enterobacter aerogenes (6.37 ± 3.82)%, Enterobacter cloacae (3.82 ± 3.00)%, Bacillus sp (3.18 ± 2.75)%, Bacillus subtilis (3.18 ± 2.75)%, Citrobacter freundii (3.18 ± 2.75)%, and others. Staphylococcus aures strains were resistant to Penicillin 65.63%, while Streptococcus agalactiae were resistant to Cefalexin 56%, Penicillin 56% and Cefalotin 52%. The test was taken (p<0.05), being these antibiotics related to stable 3 to be statistically significant.