Vitamin composition specially used for boars, and preparation method of vitamin composition

The invention relates to a vitamin composition specially used for boars, and a preparation method of the vitamin composition. The vitamin composition comprises the following components in parts by weight: 10-15 parts of vitamin A, 10-15 parts of vitamin E, 10-20 parts of vitamin C, 10-20 parts of biotin, 10-20 parts of beta-carotene, 5-10 parts of folic acid and 1-5 parts of choline. The vitamin composition is capable of maintaining the normal dark adaptation ability, maintaining the normal vision, promoting the biosynthesis of protein and the differentiation of bone cells, promoting the growth of organisms and the development of bones, promoting the development of egg cells, improving the quality of the egg cells and increasing the number of ovulation, being beneficial to mating, reducing the number of mating omission and the non-pregnant number, improving the vigor and number of sperm cells, increasing the litter size, promoting the oestrus of pigs, shortening the weaning mating interval, reducing the elimination rate of breeding sows, reducing the elimination rate of the boars, improving the fertility and increasing the number of weaned piglets every year.