Mycoses of mustelids of cell content

DOI 10.33861/2071-8020-2021-5-36-38

Semikrasova A.N., Petrova I.V., Zhilina K.V.

Summary. The focus of attention of authoritative international organizations, such as the World Health Organization, the Food and Agriculture United Nations, is the problem of contamination by fungal microflora of feed and the formation of secondary metabolites (mycotoxins) and a number of micromycetes. Contaminant fungi are mainly represented by saprophytic species with disease-causing potential. Entering the body of an animal, fungi can cause invasive lesions of the gastrointestinal tract (mucoromycosis), infection by inhalation of fungal spores, followed by the development of respiratory mycoses (aspergillosis). Almost all types of molds are capable of synthesizing mycotoxins. Some types of fungi (Penicillium) form antibiotics as secondary metabolites, which, when ingested, can disrupt the composition of the microflora of the gastrointestinal tract. The article presents the results of studies on the identification of mycoses in mustelids of cell content.

To determine the species composition of pathogenic fungi, most often found in mustelids in fur farms of the Russian Federation, microbiological studies were carried out using selective culture media and a MicroTax microbiological analyzer.

As a result of laboratory research, it was found that among the isolated material from the internal organs, pathogenic fungi of the genera Fusarium, Aspergillus, Mucor, Candida are most often found. Microbiological examination of animal feed (porridge, grain grinding, fish feed) revealed identical pathogens. As a result of setting a bioassay on rabbits and white mice, the pathogenicity of the isolated fungi was determined. A laboratory study was carried out to study the effect of the isolated mushrooms and their metabolic products on the weasel organism.

Keywords: mycoses, martens of cell content, mink, sable, feed, mycotoxins, fungal microflora, pathogenic fungi, pathomorphological changes, bioassay.

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Author affiliation:

Petrova Irina V., Ph.D. in Veterinary Medicine, senior scientific researcher of the Scientific Research Institute of Fur-Bearing Animal Breeding and Rabbit Breeding named after V.A. Afanasyev; 6, Trudovaya st., Rodniki sttl., Ramensky district, Moscow region, 140143; phone: 8-496-4648681; e-mail: niipzk@mail.ru.

Zhilina Kseniya V., junior scientific researcher of the Scientific Research Institute of Fur-Bearing Animal Breeding and Rabbit Breeding named after V.A. Afanasyev; 6, Trudovaya st., Rodniki sttl., Ramensky district, Moscow region, 140143; phone: 8-496-4648681; e-mail: niipzk@mail.ru.

Responsible for correspondence with the editorial board: Semikrasova Alla N., Ph.D. in Biology, leading scientific researcher of the Scientific Research Institute of FurBearing Animal Breeding and Rabbit Breeding named after V.A. Afanasyev; 6, Trudovaya st., Rodniki sttl., Ramensky district, Moscow region, 140143; phone: 8-496-4648681; e-mail: niipzk-vet@mail.ru.