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Biomedical subjects

E Krustev

Publications and source records attributed to E Krustev.

4 recordsLinked to original sources
PubMed1981

[Microflora in corn silage].

A total of 1050 samples of maize silage taken at various depths on premises for storing ensilaged feeds. The presence of eight species of microscopic fungi was demonstrated in the sampled silage: Mucor, Penicillium, Aspergillus, Alternaria, Trichoderma. It was established that highest was the number of species in the surface layer of the ensilaged mass. Considerably less were the species at a depth of 1.5 m, and then again the number of species rose toward the ground layer of silage. It is believed that lactic acid fermentation and the aerobic conditions exerted mycostatic effects. It was also demonstrated that with the aging of silage fungal species of the Fusarium and Trichoderma genera disappeared.

Alternaria↗
PubMed1978

[Microclimate and the mortality among turkey poult broilers].

Zoohygiene studies have been carried out in the course of two years, following up periodically at 20--25-day intervals the concentration of ammonia gas and hydrogen sulfide, the relative humidity, and the temperature within the houses of an industrial animal-breeding complex for the production of broiler turkey-poults. Parallel investigations have aimed at following up the morbidity and mortality rates among the birds. Part of them divided into age groups, have likewise been studied in terms of total protein and protein fractions of the blood serum along with the establishing of the blood bactericidal titer. Dependable values have been found of the interrelationship between the age of the turkey-poults and their mortality rate. The same have proved to be the values expressing the correlation between the air concentration of ammonia gas in the farm houses and the mortality rate shown. It is concluded that the mortality rates established in the turkey combine might probably be due to the action of comlex factors, mainly to inappropriate microclimate and incomplete raising technology that contribute to the appearance and development of pathogenic and occasionally pathogenic agents as well as of some noninfectious diseases.

Air Pollutants↗
PubMed1976

[Effect of subtoxic doses of dipterex on guinea pigs].

Chronic experiments were carried out with 62 guinea pigs (31 test and 31 control animals) which were given dipterex orally for 60 days at the rate of 100 mg/kg each. The effect was followed up of dipterex on the bactericidal properties of the blood, the phagocytic activity of some organs of the reticulo-endothelial system, the serum cholinesterase, the alkaline phosphatase, the hemoglobin and hematocrit values of the blood, and the proteinogram of the blood serum. A neglible drop of the gamma-globin fraction of the serum and the phagocytic activity of the immobile cells of the RES of the spleen and liver was found. The hemoglobin content decreased by 13.5 per cent, while the hematocrit value remained unchanged. At the amount given above dipterex suppressed by 50 per cent the activity of the serum cholinesterase, and increased by 36 per cent that of the alkaline phosphatase.

Alkaline Phosphatase↗