The purpose of the work was to study the effect of Vitamin feed supplement on the hematological indicators of young geese. The research was carried out on young geese - hybrids of Shadrin and Italian white breed on the farm “Popov S.N.” in Shumikhinsky district, Kurgan region. The young birds at a daily age were divided into 3 groups. 500 heads were selected for each group. The poultry cultivation period was 60 days. Young geese of the control group were fed with compound feed PK-31 (from 1 to 3 weeks of cultivation) and PK-32 (from 4 to 9 weeks of cultivation); the poultry from the 1 experimental group was fed with compound feed, with Vitamin supplement in a dose of 0.2 ml/l of water; and the poultry from the 2 experimental group was fed with compound feed, with Vitamin supplement in a dose of 0.5 ml/l of water. It was found that the use of Vitamin supplement for geese contributed to a more intensive metabolism, and as a result, better oxygen supply of organs and tissues, compared with peers out of control group. Hematological analyses confirm the peculiarities of metabolism of geese who consumed Vitamin supplement. In the experimental groups, with an increase in the dosage of Vitamin supplement (up to 0.5 ml/l of water), the young geese showed an increase in the level of tissue respiration, which is characteristic with an increase in metabolic processes and, as a result, an increase in productivity.