Hidiroglou M, Hartin K E
Can Vet J. 1982 Aug;23(8):255-8.
Blood plasma analyses for vitamins A, E and selenium were performed from calving to five weeks of lactation in 29 cows. Twelve of the 29 cows had fat cow syndrome. The healthy cows had significantly higher (P<0.01) plasma vitamin A (40 mug/dL) and vitamin E (5 mug/mL) levels than the cows with fat cow syndrome (29 mug vitamin A/dL and 3 mug vitamin E/mL). At parturition, vitamin A level in plasma was low (25 mug/dL) but increased progressively thereafter (up to 51 mug/dL) in healthy cows, whereas cows with fat cow syndrome had lower levels of vitamin A, bordering on deficiency. The possible role of vitamin E in the alleviation of fat cow syndrome by affecting oxidation-reduction reactions in the liver is discussed. Significant (P<0.01) difference was not observed in selenium blood plasma level (35 ng/mL) between the two groups of cows or in another random group of 12 cows clinically affected by fat cow syndrome.
对29头奶牛从产犊到泌乳五周期间的血浆进行了维生素A、E和硒含量分析。29头奶牛中有12头患有肥牛综合征。健康奶牛的血浆维生素A（40微克/分升）和维生素E（5微克/毫升）水平显著高于（P<0.01）患有肥牛综合征的奶牛（维生素A 29微克/分升和维生素E 3微克/毫升）。在分娩时，健康奶牛血浆中的维生素A水平较低（25微克/分升），但此后逐渐升高（最高可达51微克/分升），而患有肥牛综合征的奶牛维生素A水平较低，接近缺乏水平。讨论了维生素E通过影响肝脏中的氧化还原反应在缓解肥牛综合征方面的可能作用。两组奶牛之间的血浆硒水平（35纳克/毫升）或另一组临床上受肥牛综合征影响的12头随机奶牛中均未观察到显著（P<0.01）差异。
