Influence of protein feeding when growing carp in ecological conditions

The article describes the results of a study on increasing the proportion of protein in feed for Parsi carp by adding rapeseed meal. In order to determine the effect of rapeseed meal as a source of additional protein for carp, it was added to the feed of the experimental group, followed by comparison of growth results with the control group, where it was not added. As a result of the research, it was established that the experimental group was ahead of the control group in terms of average weight gain by 14.61% by the end of the study. The fish selected for the study had the same weight at the beginning of the experiment, but during the experiment, individuals receiving food with a protein content of 45% at each weighing were ahead in growth of their counterparts from the control group, receiving food with 35% protein. The average weights of fish from group I were more than those from group II by 2.29, 4.98, 7.57, 9.92, 11.52, 14.13, 14.61%, respectively.