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KMID : 0359319740140020201
Korean Journal of Veterinary Research
1974 Volume.14 No. 2 p.201 ~ p.205
Serum Vitamin E Levels in Pregnant Dairy Cows

Abstract
Blood serum from 30 pregnant cows, 6 non-Pregnant cows (one month after delivery), 6 sterile cows (ovarian cyst), and 6 heifers (16 months old) were analyzed for total vitamin E concentration by the ferric chloride-bipyridyl reaction. The pregnant group was determined pericdically throughout pregnancy.
The results obtained were as follows:
1. The mean value of serum vitamin E level in pregnant group was 0.651 ±0.068(SE)㎎/100㎖, in non-pregnant group 0.647±0.119(SE)㎎/100㎖, in sterile group 0.488±0.053(SE)㎎/100㎖, and in heifer group 0.083±0.016(SE)㎎/100㎖. Samples below 0.19㎎/100㎖ were net observed and most of the pregnants (83.3%) showed the values of 0.40 to 0.99 ㎎/100㎖ during pregnancy
2. The difference of vitamin E level between pregnant group and non-pregnant group was net significant, but these trio groups showed a significantly higher value than that of sterile group. On the other hand, in heifer group was recognized significantly lower value compared with adult groups.
3. The change of serum vitamin E level in pregnant group revealed the tendency of decrease as gestation progresses and significantly dropped at the eighth month, thereafter, the value was rose slightly at the tenth month of gestation but no differences were observed. The coefficient of correlation between months and serum vitamin E levels during pregnancy was r= -0.956(p<0.07), and a regression equation was Y (serum vitamin E levels, ㎎/100 ㎖) =1.034-0.063χ(month).
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학술진흥재단(KCI)