929492b6c5fb97f147c02bf6463c4c86 pmc_34065566.pdf 93abd12d3bf649c421e07e92c11e2fd8c3f1a552 pmc_34065566.pdf 4aa463c6820f1177c1ae7f8f011c438540723db650f24a17fbd3ead60bd726b5 pmc_34065566.pdf Title: Microbial Prevalence and Antimicrobial Sensitivity in Equine Endometritis in Field Conditions Subject: Endometritis is one of the main causes of infertility in mares. In the present study, 363 mares with a history of repetitive infertility, and positive endometrial cytology and/or vaginal discharge were included. An endometrial swab for microbiological purposes plus sensitivity test was obtained from each mare. A positive culture was obtained in 89% of mares. The main isolated genera were Staphylococcus (25.1%), Streptococcus (18.2%), Escherichia (17.3%) and Pseudomonas (12.1%). With regard to species, the most isolated microorganism was Escherichia coli (17.3%), Staphylococcus spp. (15.6%) and Streptococcus spp. (13.5%). Sensitivity tests showed that the most efficient antimicrobial was amikacin (57.3% of cultures), followed by cefoxitin (48.6%) and gentamicin (48.3%). When sensitivity test was analyzed in terms of Gram+ and Gram– bacteria, Gram+ were highly resistant to cephaloridine (77.3% of cultures), apramycin (70.8%) and penicillin (62.3%), whereas Gram– were highly resistant to penicillin (85.8%), followed by cephaloridine (78.9%). In conclusion, the present study shows the most prevalent microorganisms isolated from equine endometritis, which were found to be resistant to -lactam antimicrobials. Likewise, these results highlight the significance of performing microbiological analyses as well as sensitivity tests prior to applying an antimicrobial therapy. Keywords: equine endometritis; early estrus; microbiologic study; sensitivity test Author: María Luisa Díaz-Bertrana, Stefan Deleuze, Lidia Pitti Rios, Marc Yeste, Inmaculada Morales Fariña and Maria Montserrat Rivera del Alamo Creator: LaTeX with hyperref Producer: pdfTeX-1.40.21 CreationDate: Mon May 24 04:56:09 2021 CEST ModDate: Mon May 24 04:56:09 2021 CEST Custom Metadata: yes Metadata Stream: no Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 12 Encrypted: no Page size: 595.276 x 841.89 pts (A4) Page rot: 0 File size: 1215128 bytes Optimized: no PDF version: 1.5 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- PRWIUT+URWPalladioL-Ital Type 1 Custom yes yes no 124 0 LHCMKP+URWPalladioL-Bold Type 1 Custom yes yes no 125 0 WLENKM+VnURWPalladioL-Bold Type 1 Custom yes yes no 126 0 XPYKII+URWPalladioL-Roma Type 1 Custom yes yes no 127 0 CIQLLF+VnURWPalladioL Type 1 Custom 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