INFLUENCE OF DIETARY SUPPLEMENTATION ON SERUM VITAMIN-A AND VITAMIN-D CONCENTRATIONS AND THEIR SEASONAL-VARIATION IN HORSES

被引：6
|
作者：
SAASTAMOINEN, M
JUUSELA, J
机构：
来源：
AGRICULTURAL SCIENCE IN FINLAND | 1992年 / 1卷 / 05期
关键词：
BLOOD SERUM; EQUINE; FAT-SOLUBLE VITAMINS;
D O I：
10.23986/afsci.72460
中图分类号：
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号：
0905 ;
摘要：
An experiment involving 40 adult trotters and saddle horses was conducted during a period of one year in order to investigate the influence of vitamin A (retinol) and D (25-(OH)D) supplementation on serum vitamin concentrations and the seasonal variation of the serum concentrations of these vitamins. Vitamin supplementation was started either at the beginning or in the middle of the indoor (winter) feeding period. Supplementation lasted from the beginning of September or January to the end of May. According to the results, neither the dietary vitamin supplementation nor the length of the grazing period had any consistent effect on the serum vitamin concentrations. Neither was there any systematic seasonal variation in the serum retinol and 25-hydroxyvitamin D levels.
引用
收藏
页码：477 / 482
页数：6
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