Shkromada, Oksana, Yuliia Dudchenko, and Yana Udovenko. “Use of Probiotics for Formation of Microflora of Gastrointestinal Tract of Calves”. EUREKA: Health Sciences, no. 4 (July 30, 2021): 94-100. Accessed October 27, 2021. https://journal.eu-jr.eu/health/article/view/1951.