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Abstract

Extenders for boar semen contain antibiotics, which may induce antimicrobial resistance (AMR) in inseminated females. The objective was to investigate AMR of bacteria isolated from the cervix of sows and gilts in standing heat, representing females previously exposed to antibiotics in the semen extender and non-exposed females, respectively. Cervical swabs were taken from 30 multiparous sows and 30 gilts prior to their first insemination. After culturing on agar plates, bacterial isolates were identified by Matrix-Assisted Laser Desorption/Ionization Time of Flight Mass Spectrometry and antimicrobial minimum inhibitory concentrations (MIC) were determined. Differences in antibiotic resistance between sows and gilts were analyzed by Chi-squared or Fisher’s exact test. Bacteria isolated were mostly Staphylococcus spp., Streptococcus spp. and Corynebacterium spp. Higher MICs were observed for isolates from sows than from gilts. Most (>80%) Corynebacterium spp. were resistant to clindamycin; small numbers (

Keywords

antimicrobial resistance; vaginal flora of pigs; cervical swabs; antibiotics in semen extenders; antibiotic minimum inhibitory concentration

Published in

Animals
2022, volume: 22, number: 1, article number: 117

SLU Authors

Associated SLU-program

AMR: Bacteria

Global goals (SDG)

SDG3 Good health and well-being

UKÄ Subject classification

Clinical Science

Publication identifier

  • DOI: https://doi.org/10.3390/ani12010117

Permanent link to this page (URI)

https://res.slu.se/id/publ/115144