Sensitivity of microflora of mammary gland secretion to antibiotics in mastitis in cats

Abstract

This article presents a microbial analysis of mammary gland secretion in cats with purulent-catarrhal inflammation. The studies were conducted from 2020 to 2023 in the veterinary clinic of the SKZNIVI in Novocherkassk, Rostov Region. The study involved 30 animals with signs of purulent-catarrhal inflammation of the mammary gland. The cats included in the experiment underwent thorough clinical and laboratory examination. Comprehensive animal studies included: collecting anamnesis, conducting clinical and morphological blood tests, differential diagnostics of clinical forms of mammary gland lesions, and conducting an ultrasound examination. The diagnosis of "purulent-catarrhal mastitis" was established in a comprehensive manner based on clinical data, laboratory tests and characteristic changes in the condition of surrounding tissues and other packages of the mammary gland. The species composition of microorganisms isolated from the mammary gland secretion during mastitis was subjected to microbiological examination by seeding on nutrient media (MPB, MPA) with subsequent microscopic examination. Sensitivity of microflora isolated from the mammary gland secretion to antibacterial drugs was tested using the disk diffusion method. The research results presented in the article indicate that antibiotics with a long history of use in veterinary medicine: benzylpenicillin, oxacillin, streptomycin, erythromycin, polymyxin demonstrate weak antimicrobial activity or its complete absence. This is especially evident in relation to field isolates of microorganisms. These results confirm the fact of growing drug resistance of microorganisms, including those determining the etiology of mastitis in cats. Cats are domestic animals with which people have constant contact. As a result, there is a real danger of the emergence of a common microbial background in which an exchange of bacterial pathogens with emerging resistance to antibiotics can occur. Analyzing the obtained research results, we can conclude that the microflora of the mammary gland of cats with inflammation of the mammary gland is most sensitive to cephalosporin drugs.

Keywords

• microorganisms
• microflora
• mammary gland
• inflammation
• inflamma-tion of the mammary gland
• mastitis
• carnivores