636.085.55(075.8) USE OF NON-TRADITIONAL RAW MATERIALS IN THE PRODUCTION OF FISH FEED: new fish product waste, water temperature, hydrolysate, formulations, innovative approaches, compound feeds.

new fish product waste, water temperature, hydrolysate, formulations, innovative approaches, compound feeds.

Abstract

In this scientific work, the scientific and practical foundations of using non-traditional raw materials as an alternative to fish meal in the composition of compound feeds intended for various age groups of cyprinid fish are systematically investigated for the first time. Research results showed that the presence of protein hydrolysis products with a medium degree of hydrolysis in the diet of cyprinid larvae significantly increases the activity of digestive enzymes that break down protein and carbohydrate components of the feed. This allows for the effective use of new compound feed without adding live food. On this basis, optimal inclusion rates of corn gluten, pumpkin flour, and hydrolyzed fish protein in compound feeds for the initial and production periods were determined, and new formulations were developed. Furthermore, based on the use of new dry compound feed formulations including non-traditional raw materials and biologically active additives, an intensive technology for rearing fingerlings and marketable fish has been developed. This technology makes it possible to increase the efficiency of fish farming and reduce the cost of feed.