Realization of genetic potential of efficiency of modern highly productive breeds of pigs provides the use of quality compound feeds balanced on nutritiousness. The constant increase in prices for raw materials forces the experts to find out the ways of reduction in cost of forages which, as we know, make 70 % in the structure of product cost in pig-breeding, and, despite the growth of efficiency and decrease in costs of production in kind, in money equivalent this item of expenditure remains high. One of the ways of decreasing the costs of forages of production in value terms is the reduc-tion in cost of recipes of compound feeds due to the application of various nonconventional feed additives, for example peat. As a result of re-searches experimental data on the growth and de-velopment of swines were obtained. Scientific and economic experiment on feeding of peat was made during the period since 2015-2016 on the basis of a pig-breeding complex of JSC ‘TRENEKS’ of Achinsk area of Krasnoyarsk Region, and also at the Department of Zootechnics and Technology of Processing of Production of Animal Husbandry of Institute ABaVM of Krasnoyarsk SAU. According to the objectives the material for the research was the swines picked up for the principle of couples ana-logs. The selection in groups of experimental and control animals was carried out taking into account the origin, sex, live weight, age and physiological state. Conducted researches allowed studying the intensity of growth and development, morphologic indicators of animals’ blood. In the blood the amount of hemoglobin, erythrocytes, leukocytes, the general protein, glucose, acid capacity, calcium, phosphorus, iron, potassium, sodium were deter-mined by standard techniques. It was established that the use of peat in the diet of pigs on sagination from 7.5 to 12.5 % had beneficial effect on feeding qualities and physiological indicators of swines, but the most expressive result was recorded in the third group where 10 % of fodder source were the share of an additive.