Improving the technology of growing crustaceans the example of redclaw crayfish Cherax quadricarinatus

Abstract

The urgency of research with crustaceans in aquaculture is due to the significant demand for the consumption of delicacies of aquatic organisms, including redclaw (Cherax quadricarinatus). Production of freshwater crustaceans provides high profits. Significant volumes of cultivation of these objects on an industrial scale will contribute to the development of aquaculture as a sector of the economy of Ukraine. The scientific novelty is that for the first time in the aquarium-pool complex of a higher education institution a study was conducted on the artificial cultivation and maintenance of australian redclaw crayfish (Cherax quadricarinatus) with the improvement of the technological scheme of cultivation. For the first time in the technological scheme of cultivation, a shelter for crustaceans was used, where the main elements are separator plates and polymer pipes. The proposed design for sheltering crustaceans reduces their death during cultivation, improves the overall functional state of the body after changing the chitinous cover (molting), prevents cannibalism and minimizes stress in intensive reproduction and cultivation technology, optimizes the maintenance of the artificial shelter. The experiment involved testing the technological process of growing crustaceans using structures for their shelter, studying the growth rate and monitoring the hydrochemical regime. The practical significance of the study will help to improve the technology of artificial cultivation of australian redclaw with the prevention of cannibalism.