RESUMEN
In this paper the effects of different probiotic, such as "Vitafort", "Lactobyfadol" and "Batsispecin" on turkey, ducklings and goslings growth were evaluated. The studies were carried out at different poultry farms of the Republic of Bashkortostan. Using of "Vitafort", "Lactobyfadol" probiotics in poultry nutrition showed a positive dynamic of live weight gain by 9.2 and 12.5% in turkeys, 5,0 and 5,2% in ducklings and 3.7 to 10.5% in goslings live weight. The optimal dose of "Lactobifadol" probiotics in turkey nutrition was 0.5 ml (107CFU/g) per 1 kg of live weight and at a dose of 0.2 g per 1 kg of live weight in the diets of ducklings. In addition, for goslings the probiotic "Bacispecin" was used with 108 CFU/ml at a dose of 1 ml per 1 kg of live weight. These doses proved to increase the full value of rations as well as the growth and development of birds. There was a positive economic effect of using the probiotics in rations of birds.