The Influence of Dietary Vitamin A on Atherogenesis in Japanese Quail
| Autor: | E. A. Cogger, R. C. Bayer, Robert K. Ringer |
|---|---|
| Rok vydání: | 1972 |
| Předmět: |
Male
Vitamin medicine.medical_specialty animal structures Arteriosclerosis Aortic Diseases Aorta Thoracic Blood Pressure Coronary Disease Coturnix chemistry.chemical_compound Animal science biology.animal medicine.artery Internal medicine Animals Medicine Thoracic aorta Vitamin A Poultry Diseases Aortic atherosclerosis biology business.industry General Medicine biology.organism_classification medicine.disease Lipids Quail Diet Endocrinology Blood pressure chemistry Coturnix coturnix Animal Science and Zoology business |
| Zdroj: | Poultry Science. 51:925-929 |
| ISSN: | 0032-5791 |
| Popis: | Two experiments were conducted to study the influence of vitamin A on atherosclerosis. In one experiment quail chicks (Coturnix coturnix japonica) were hatched and immediately placed on diets deficient in vitamin A (880 U.S.P. units/kg. of feed), normal in vitamin A (4,400 U.S.P. units/kg. of feed) or excessive in vitamin A (22,000 and 220,000 U.S.P. units/kg. of feed). In a second experiment, mature male quail were placed on the same diets as in the preceding experiment. All experiments were conducted for 10 weeks. At the end of 10 weeks on experimental rations, blood pressure was measured by cannulation of the carotid artery. The results indicate that birds fed low levels of vitamin A had the highest incidence of coronary atherosclerosis and most severe aortic atherosclerosis. It was determined that a minimum of approximately 15,000 U.S.P. units of the vitamin were needed to minimize atherosclerosis in the thoracic aorta in growing quail chicks. Blood pressure was not significantly altered by varying vitamin A in the diet. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|