1. S. A. Ryabtseva, A. G. Khramtsov, R. O. Budkevich, G. S. Anisimov, A. O. Chuklo and M. A. Shpak, Physiological effects, mechanisms of action and use of lactulose 2(89), 5–20 (2020).
2. V. I. Fisinin, G. Yu. Laptev, I. N. Nikonov, L. A. Ilina end E. A. Yildirim, Changes in the bacterial community in the gastrointestinal tract of chickens during ontogenesis 6(51), 883–890 (2016).
3. The Gut Microbiota of Laying Hens and Its Manipulation with Prebiotics and Probiotics To Enhance Gut Health and Food Safety
4. G. Yu. Laptev, Norms of microflora in the gastrointestinal tract of broiler chickens (LTD «Biotroph», SPb, 2016), p. 26.
5. M. S. Grin, Current problems of intensive development of animal husbandry 22(1), 178–184 (2019).