Abstract
Within our experiment, we studied the combined effect of live food application and feed training on the production parameters of carp larvae. In addition, we examined whether there is a difference in the growth rate and survival rate of the specimens of Szeged mirror landrace reared in similar stocking density but with different treatments.
 Specimens of Szeged mirror landrace from induced propagation were placed into 12 pieces of 40-liter aquaria. For the 4 different treatments, (K, A3, A6, A9), live food (Artemia salina) was fed, as well as feed training was applied.
 We also sought to find an answer as to how our feeding and rearing conditions can affect the production parameters of common carp fries and what impact these conditions may have on their survival rates. At the end of the 2-week experiment we determined the individual weight gain of the carp fries, their survival rate and the biomass growth. The purpose of the study is to examine the optimum timing of shifting from live food to feed for carp larvae.
Highlights
One of the most important fish species in the world's freshwater aquaculture production is carp
In our experiment we studied the combined effect of live food application and feed training on production parameters for carp larvae
In the course of A3 treatment, there was a difference in homogeneity, in addition, the results of this particular group showed the highest values for body weight gain
Summary
One of the most important fish species in the world's freshwater aquaculture production is carp. Domestic carp breeding is typically carried out in pond farms, and a large proportion of the fish for market use comes from these farms. According to the data of the Agricultural Research Institute of 2016, a total of 15 440 tonnes of carp were fished in that given year, out of which 10 035 tonnes of fish had the appropriate size for market sale while the edible fish accounted for 42.7% of the total production (AKI 2017). There are both rearing-technological and production-structural reasons behind this centricity in carp breeding. The production of edible carp is mostly carried out in a three-year operation process and the greatest disadvantage of this type of production is the long payback period (Szűcs 2002)
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