Özet:

The aim of this study is to isolate the agents from nasal swabs taken from horses with respiratory system findings and to examine the susceptibility of the isolated agents to various antibiotics.Nasal swab samples were taken from 30 horses of different age groups with respiratory system symptoms. The samples taken were cultured on Blood agar, MacConkey agar, Mycoplasma agar and Sabouraud Dexgrose agar. The properties of the colonies formed after being kept in appropriate incubation times and conditions were examined. Gram staining was applied and biochemical tests were performed for identification. In addition, antibiogram test was applied to isolated agents. Ten different agents were grown from nasal swabs taken from horses of different ages with respiratory system problems. While 2 different agents were isolated in two samples, pure agent was grown from 28 samples. As a result of the biochemical tests, 9 Streptococcus zooepidemicus (27.27%), 4 Staphylococcus aureus (12.12%), Staphylococcus epidermidis (12.12%), and Klebsiella spp. (12.12%), 3 Pasteurella spp. (9.09%), 2 Streptococcus pyogenes (6.06%), Bacillus sp. (6.06%), Corynebacterium spp. (6.06%), and Candida spp. (6.06%) and 1 Rhodococcus equi (3.03%) were identified. As a result of the antibiogram test, it was determined that the antibiotic to which the agents were most sensitive was Amoxicillin/clavulanic acid (84.84%) and the most resistant to Penicillin-G (15.15%). The most Streptococcus zooepidemicus (27.27%) and the least Rhodococcus equi (3.03%) were identified from nasal swab samples taken from 30 horses of different age groups with respiratory system problems. In invitro conditions, it was determined that the agents were most sensitive to Amoxicillin / clavulanic acid (84.84%) and resistant to Penicillin-G (15.15%).