[Erythrocyte lipid peroxidation as a diagnostic test in supplying pigs, lambs and chickens with vitamin E].

Experiments with pigs, lambs, sheep, and birds, carried out under various conditions of feeding (with or without supplement or treatment with vitamin E) revealed that the study of the peroxide resistance of erythrocyte lipids could render useful information on the supply of animals with vitamin E. The study of peroxide resistance was shown to be much more accessible than the available chemical methods, and had better reproducibility. This new approach took good consideration of the biologic activity of vitamin E, and was fairly suitable to be employed as a screening diagnostic method.

[Etiopathogenesis and epizootiology of coccidiosis in rabbits].

Studies were carried out on the etiology and epizootiology of rabbit coccidiosis. Three experimental groups of rabbits were infected with intestinal, liver, and mixed intestinal and liver coccidia. The shedding of oocysts and the clinical course of the disease were followed up, with description of the morphologic changes and the results of the biochemical examinations of the blood.

[Prevention of ruminal acidosis during the intensive fattening of weanling lambs].

Forty-eight intensely fattened weaned lambs, divided into 2 groups were used to test the prophylactic effect of lasalocid with regard to rumen acidosis. The animals were offered complete mixtures ad libitum, containing 80 per cent concentrates and 20 per cent cut meadow hay. The weaned lambs of the test group were given the preparation "Avatek' (with 15 per cent lasalocid) in the course of 60 days with the feed at the rate of 250 g per ton of the complete mixture.

[Clinico-experimental and clinical studies of a ketomethine preparation in sheep and cows].

Some of the clinical parameters of the preparation ketomethyne, containing propylene glycol, methyonine, and Co bichloride, were comparatively studied with the analogous preparation ursoketin at oral application to sheep and cows. It was found that ketomethyne raised more slowly the level of blood sugar than ursoketin, but maintained it by 24-35 per cent higher than the initial level from the 6th to the 24th hour following treatment. The oral application of ketomethyne had no unfavourable effect on the rumen activity, the general clinical indices body temperature, pulse, respiration), the hematologic indices as hemoglobin and erythrocyte and leukocyte count, and the appetite.

[Alkaline phosphatase activity and isoenzymes in the blood serum of cattle, sheep and swine].

Studied were the total activity and the type of isoenzymes of the alkaline phosphatase in blood serum of cattle, sheep, and swine at various ages and different physiologic status. With all three species the enzyme activity showed explicit age dynamic. In month-old calves the activity of the serum phosphatase was 82.