WEANING OF PIKEPERCH (SANDER LUCIOPERCA L.) FRY FROM LIVE FOOD TO ARTIFICIAL FEED USING CHIRONOMIDS AND MINCED FISH MEAT
Keywords:
pikepech, weaning, dry feed, chironomids, minced meat fish, survival, body weightAbstract
The aim of the experiment was to teste two methods of juvenile pikeperch weaning from live food to artificial feed: variant. 1 - 8 days co-feeding of dry feed and frozen chironomids and variant 2 – 1-8 days co-feeding of dry feed and minced fish meat. 960 individuals of juvenile pikeperch with mean initial total length (TL) 3.77±0.164 cm and weight (W) 0.43±0.065 g from nursing pond were randomly distributed into 4 plastic tanks in flow throw system. The study was performed at stocking density of 6 ind. l-1 in double repeat.
The weaning success was evaluated after 10 day rearing period. In variant 2 significantly higher survival rate was
achieved (mean 66.2 %) in comparison with variant 1 (mean 54.35 %).
In relation with weight the received results in variant 1 are better than those in variant 2. The same could be observed in the lengths of the fish in the beginning and in the end of the experiment.
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