Emel’yanov - an outstanding scientist, talented organizer, and founder of the dairy farming development in Russia

The article presents the biography of Aleksei Stepanovich Emel’yanov, identifies the key areas of his research, reflects the work on the survey of livestock in the areas of activity of breeding nurseries he studied in the vast territory of the North-West of Russia, on feeding and fodder production. The paper shows the results of individual experiments, focuses on the most important issues studied by A.S. Emel’yanov in the field of development of livestock and grassland farming and their impact on the activities of agricultural enterprises.