Sensitivity to antibiotics of Arcanobacterium pyogenes and Escherichia coli from the uteri of cows with metritis/endometritis.
The aim of the study was to determine the in vitro sensitivity of 161 Arcanobacterium pyogenes strains and 99 Escherichia coli strains isolated from the uteri of 312 cows with metritis/endometritis. Animals with pathological discharges were clinically diagnosed per rectum and per vaginum, and then swabs from the lumen of the uterus were aseptically collected. Bacteriological examination of swabs was according to commonly accepted procedures with the additional use of API tests. Sensitivity to antibiotics was tested by the disk diffusion method and performed in Mueller-Hinton agar. Arc. pyogenes strains were the most sensitive to amoxicillin/clavulanic acid (Amc) (97.3%), bacitracin (96.7%), ceftiofur (95.8%) and cephapirin (77.5%). E. coli strains were the most sensitive to norfloxacin (98.1%), marbofloxacin (95.8%), gentamycin (88%), Amc (80.7%) and ceftiofur (73.1%). Arc. pyogenes and E. coli were most resistant to oxytetracycline (63.7% and 31%, respectively).
Department of Pathophysiology of Reproduction and Mammary Gland, National Veterinary Research Institute, Powstańców Wlkp. 10, 85-090 Bydgoszcz, Poland. vetri@logonet.com.pl
Edward
E
Malinowski
Henryka
H
Lassa
Hanna
H
Markiewicz
Maciej
M
Kaptur
Marek
M
Nadolny
Wiesław
W
Niewitecki
Jacek
J
Ziętara
D000193:Actinomycetales Infections / Q000188:drug therapy / Q000382:microbiology / Q000662:veterinary; D000818:Animals; D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D055667:Arcanobacterium / Q000145:classification / Q000187:drug effects* / Q000302:isolation & purification; D002417:Cattle; D002418:Cattle Diseases / Q000188:drug therapy / Q000382:microbiology; D004716:Endometritis / Q000188:drug therapy / Q000382:microbiology / Q000662:veterinary*; D004926:Escherichia coli / Q000145:classification / Q000187:drug effects* / Q000302:isolation & purification; D004927:Escherichia coli Infections / Q000188:drug therapy / Q000382:microbiology / Q000662:veterinary; D005260:Female; D008826:Microbial Sensitivity Tests / Q000662:veterinary; D014599:Uterus / Q000382:microbiology*
D000900:Anti-Bacterial Agents