[The action of acetylcholine antagonists on preimplantation mouse embryos cultured in vitro].

The effects of acetylcholine antagonists on development of the two-cell mouse embryos was studied. Etpenal-3 and etpenal-14 were shown to delay cleavage, affect cytokinesis, induce fusion of the blastomeres and arrest development at the stage of two-eight blastomeres with respect to the concentration used. Atropine, an M-cholinolytic, affects the early embryogenesis at a higher concentration than the cholinolytics with mixed effect.

[Nutritional consistency of rations of pregnant and breast feeding women with anemia].

Nutrient density has been studied in healthy and anemic women's rations. The examinees were either pregnant or breast-feeding. The diets were found out from questionnaires and check-weighing.

[The status of the actual nutrition of pregnant women in an epidemically unfavorable region of Kazakhstan].

Questionnaire survey and body mass control followed by computer estimation of the diet chemical composition were conducted in 30 pregnant women in summer and autumn. Deficiency in intake of meat products, vegetable oil, potatoes reached 15.2-34.

[Present diet and energy expenditure of young sportsmen-swimmers of Alma-Ata].

From pertinent investigations it follows that the daily food allowances for young swimmers of the sporting-type boarding school in Alma-Ata fully cover their needs for such main ingredients as protein, fats, carbohydrates and conform to the amount of energy expended by them. One should, however, point out some serious qualitative drawbacks in the dietary of the school inmates, such as an insufficient content of vitamins "B2" and "C" in the daily food ration. The data obtained may be of use in formulating an optimal dietary for the young swimmers of the boarding school in question.