[The effect of food products with an elevated radionuclide level on the blood and urine indices in rats].

Food influence, including raw meat with radionuclides (6.66 x 10(3) - 20.72 x 10(3) Bq/kg) during 30 days, on some homeostasis values was studied in white not pedigree rats.

[The morphological aspects in a biomedical assessment of hydrobionts].

The morphological data are presented on the condition of internal organs in experimental animals during hygienic examination of a number of traditional fish species, as well as the results of the morphological study of the nature of pigment spots on the skin of perch. The problem has been considered on the importance of morphological investigations in the study of harmlessness of hydrobionts. A conclusion has been made on the necessity of conducting thorough morphological investigations of hydrobionts and those structural changes that can be induced by their usage.

[Characteristics of lipids of various species of small fish].

Fractional and fatty-acid lipid composition studied in some new species of small industrial fish was shown to be specific and typical for hydrodionts: comparatively high nonsaturation of fatty acids, essential amount of polyenic acids with 20 and 22 carbon atoms. The main lipid fractions were presented by triglycerides and phospholipids. The new small fish species studied can serve as an additional source of biologically valuable fatty components in the nutrition of the population.

[Effect of the meat of farm animals fed new nitrogen-containing food additives on the morphologic features of the internal organs in the rat].

A study was made of the internal organs of rats fed the meat of agricultural animals whose diet included non-protein nitrogen-containing compounds--urea, isobutylidene diurea and a polymer, carbamide with polyacrylamide. Morphological studies have demonstrated that inclusion into the diet of experimental rats of the meat of young bulls given isobutylidene diurea and urea leads to structural alterations in the internal organs of rats, the most pronounced alterations being detected in experiments with the use of the meat of young bulls given isobutylidene diurea. The feeding of experimental rats with the meat of animals grown with the use of the polymer did not affect the morphofunctional status of their organs.

[New type of commercial fish, the triggerfish (Balistes capriscus), in human nutrition].

Balistes capriscus is characterized by high level of protein (20.0 + 0.12%).

[Effect of different kinds of Ocean paste on rat liver biochemical indices in sodium fluoride poisoning].

The paper is concerned with the effect of diets including three chemically different types of the "Ocean" paste on biochemical characteristics (glycolysis, the content of phosphofructokinase, dehydrogenase, glucoso-6- phosphate, demethylase, dimethylalaniline hydroxylase, ascorbic acid) of the liver of rats exposed to sodium fluoride overdosage. The test diets were compared with those containing conventional sources of protein (casein, beef). Acute exposure to sodium fluoride caused changes in the biochemical characteristics.