Affiliation:
1. Federal Research Center for Animal Husbandry named after Academy Member L.K. Ernst
Abstract
As a result of the research, 37 strains of yeast cultures were isolated. Taking into account the toxicological status, biosafety, antagonistic properties to the native microflora of animals and the protein-amino acid composition, a strain of yeast-like fungi isolated from the mucous membrane of the upper respiratory system of cattle was selected. Based on phenotypic and biochemical characteristics, the strain was assigned to the genus Hanseniaspora. The isolate does not show toxic effects, which is confirmed in experiments on ciliates Tetrachymena pyriformis, and is biosafe in concentration 2,0·108 when administered orally to Wistar white rats. Based on a review of the literature and studies, the isolated yeast strain is promising for use as a probiotic supplement.
Reference18 articles.
1. Gleba O.V. Development of the livestock industry in Russia as a priority direction of the agrarian policy of the state / O.V. Gleba // Agrarian and land law. - 2018. - No. 5. - S. 126-132.
2. https://tass.ru/ekonomika/12625325
3. James S. Drouillard. Current situation and future trends for beef production in the United States of America – A review // AsianAustralasian Journal Of Animal Sciences. Jul. 2018 31(7) P. 1007- 1016. doi: 10.5713/ajas.18.0428.
4. Duskaev G.K. The use of probiotics and plant extracts to improve the productivity of ruminants (review) / G.K. Duskaev, G.I. Levakhin, V.L. Korolev, F.Kh. Sirazetdinov // Animal husbandry and fodder production. - 2019. - No. 1. - S. 136-148.
5. Arzin I.V. Feed yeast for highly productive cows / I.V. Arzin // Scientific support for the implementation of state programs for the agro-industrial complex and rural areas: Proceedings of the international scientific and practical conference, Lesnikovo, April 20–21, 2017. - Lesnikovo: Kurgan State Agricultural Academy. T.S. Maltseva, 2017. - S. 186-189.