The aim of this study was to determine the influence of bio-alginates on the growth rate of pheasant chicks. Two experiments were performed in pheasant chicks were administered the Biopolym supplement from 1 to 29 days of age (experiment 1) or from 1 to 36 days of age (experiment 2).The Biopolym supplement had a significant effect on the growth rate of pheasant chicks, the highestrelative increase in the body weights of birds was observed between 1 and 8 days of age, and it reached 62.9% in birds fed Biopolym-supplemented diets vs. 37.5% in the control group (P≤0.05) in experiment 1, and 60.2% vs. 48.0%, respectively (P≤0.05) in experiment 2. The body weights of pheasants fed Biopolym-supplemented diets increased 6.6-fold vs. 5.7-fold in the control group in experiment 1, and the respective values noted in experiment 2 were 9.1-fold vs. 8.4-fold (P≤0.05)