Korelsky, V. F. Fish, fishermen and fish industry in Russia / V. F. Korelsky. - Bremen : Krebs, [1993?]-.

Fish products can also be used for medical, prophylactic, and dietetic purposes, and the fish fat is used for the prophylactic and treating of myocardial ischemia, atherosclerosis and other so-called “diseases of the century,” for lowering the content of cholesterin in blood and for the preservation of elasticity of blood vessels. Mannite is a valuable product which has no substitute in nature. It is used in the medical industry for blood conservation and for other purposes. Laminaria serves iis the main raw material for its production. Agar produced from ahnfelda is widely applied in medicine and in microbiology. The production of biologically active substances, which may serve as the basis for drugs and various medicinal preparations, is a promising trend in the use of sea raw materials. The aminoacid taurini contained in sea fish and invertebrates provides for the regulation of the detoxicating functioning of the liver, the lowering of cholesterin in blood, and is used for treatment of diabetes. Chitin obtained from the test of crabs, shrimps, lobsters and kriel is used to- synthesize a number of medicinal preparations. Our research workers have obtained good results in the use of the derivatives of chitin for obtaining pharmaceutical preparations. Thus, D-glucosamine, which is a hydrolysate of chitin, can be used for manufacturing an antiarthrotic preparation, chitosan sulfates can be used for preparing anticoagulants and drugs of antisclerotic action, and also for treating leukemia, for manufacturing membranes for artificial kidneys. The fish industry also plays an important role as a supplier of fodder such as fish meal, cod-liver oil, a substitute of unskimmed milk, frozen fodder fish, chemically canned fodder fish, amino acid fodder concentrate, fodder autolyzate, as well as a supplier of base nutrients, force kriel meat, and frozen kriel fodder meat. The presence of protein, fat, biologically active substances necessary for a living organism in fish and in its by-products make it an indispensable component in the fodder used in the form of fish­ meal in stock-breeding, poultry farming, and in fish-breeding. The content of protein, fat, and fatty tissue, water, anazodc extractive substances and microelements in the fish-meal is about 50-67% The protein contained in the fish-meal is assimilated by animals and poultry by 85-90% (the vegetable protein whose content, say, in maize is 10.2% and in oats 10.7% is assimilated only by 30-40%). Moreover, the addition of fish-meal to the fodder not only makes it possible to raise the productivity of animal husbandry and to economize on fodder, but also to shorten the fattening time. Thus, the addition of 3-7% of fish-meal balances the fodder and thus intensifies the production processes in animal- breeding and poultry farming. The use of fodder balanced with respect to protein decreases the need of them by half, shortens the fattening period by 30-40%, increases the daily additional weight two times. Feeding a balanced fodder containing 3% of fish-meal to laying hens increases their egg-laying ability (per ton of fish-meal) by 16.7 thousand eggs, in pig-breeding the use of 330 kg of fish-meal balances 5.5 tons of fodder units. Other kinds of offals such as kriel-meal used in poultry-farming, pig-breeding, trout-breeding; the substitute of unskimmed milk obtained as a by-product of the processing of sardine, capelin, cod and small fry used to feed calves and pigs have also been lately employed. The milk substitute contains 2 7