Growth of carps under different level of zinc in the mixed fodder

M. Khrabko, J. Rivis

It was established that live mass of carps from research groups which received increased number of zinc in their ration was higher. Their absolute and average daily live weight increase was also higher. In carps of research groups, which received ration with increased number of zinc coefficient of fatness was higher. In one gram of body weight gain of carps research groups which received ration with increased number of zinc, spent less fodder in comparison to the control.

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