Trukhachev V.I., Komarova O.E., Bagishaeva G.I. (2022). The use of an enzyme feed additive when increasing the milk yield in cows. Agricultural and Livestock Technology, 5 (1). DOI: 10.15838/alt.2022.5.1.3 URL: http://azt-journal.ru/article/29177?_lang=en
Alvarez-Cervantes J. et al. (2021). Exogenous Enzymes as Zootechnical Additives in Animal Feed: A Review. Available at: https://www.efeedlink.com/contents/09-21-2021/6ff336bd-0d24-403b-9fc5-b31a6d638c32-a001.html
Antonova V.S., Topuriya G.M., Kosilov V.I. (2011). Metodologiya nauchnykh issledovanii v zhivotnovodstve [Methodology of Scientific Research in Animal Husbandry]. Orenburg: Izd. tsentr OGAU.
Buryakov N.P., Khardik I.V. (2019). Enzyme preparation in feeding lactating cows. Kombikorma=Compound Feed, 3, 52–54 (in Russian).
Kondrakhin I.P. (2004). Metody veterinarnoi klinicheskoi laboratornoi diagnostiki: spravochnik [Methods of Veterinary Clinical Laboratory Diagnostics. A Handbook]. Moscow: Koloss.
Nekrasov R.V., Golovin A.V., Makhaev E.A. et al. (2018). Normy potrebnostei molochnogo skota i svinei v pitatel'nykh veshchestvakh [Norms of the Needs of Dairy Cattle and Pigs in Nutrients]. Moscow: FGBNU FNTs VIZh im. L. K. Ernsta.
Orlova N.V. (2020). New biotechnological possibilities of enzyme production in Russia. Kombikorma=Compound Feed, 2, 48–52 (in Russian).
Roque B.M., Appuhamy J.A.D. R.N., Kebreab E. (2017). Role of exogenous enzyme supplementation to improve nutrition and health of ruminants. Broadening Horizons, 41. Available at: https://www.feedipedia.org/content/role-exogenous-enzyme-supplementation-improve-nutrition-and-health-ruminants
Shcherbinin S. (2019). Exogenous enzymes – a key to maximizing the use of nutrients. Tsenovik. Available at: https://phytate.ru/ekzogennye-fermenty-klyuch-k-maksimalnomu-ispolzovaniyu-pitatelnyx-veshhestv (in Russian).
Sujani S., Seresinhe R.T. (2015). Exogenous enzymes in ruminant nutrition. Asian Journal of Animal Sciences, 9 (3), 85–99. Available at: https://docsdrive.com/pdfs/ansinet/ajas/2015/85-99.pdf