SELECTION OF A NUTRIENT MEDIUM FOR GROWING BACTERIA WHICH ARE PART OF AN ENVIRONMENTALLY FRIENDLY VETERINARY PROBIOTIC PREPARATION

Doctor of biological sciences, professor, Chief researcher, LLP ", Н. Н. Гаврилова, SPC of Microbiology and Virology", , Almaty, Kazakhstan, gavrilova_nina@mail.ru, https://orcid.org/0000-0002-9078-5272, Zh.Е. Sagidoldina, master of agriculture, doctoral candidate, LLP "SPC of Microbiology and Virology", Almaty, Kazakhstan; sagidoldina79@mail.ru; https://orcid.org/0000-0002-3759-5912;, Amankeldi K. Sadanov, Doctor of biological sciences, professor, academician, director general, LLP "SPC of Microbiology and Virology", Almaty, Kazakhstan; a.sadanov@inbox.ru; https:// orcid.org/0000-0002-2593-6302;