The present invention discloses a
feed additive for promoting estrus,
ovulation and fertilization of pigs and furred furred animals. The
feed additive comprises a Chinese herbal extract, multivitamins, organic
chromium,
enzyme production probiotics,
phytase, composite
betaine, essential amino acids and a carrier; and the additive is prepared from the following components, by weight: 4 to 6 parts of angelica, 1.5 to 2.5 parts of
epimedium grandiflorum extract, 1.5 to 2.5 parts of
leonurus artemisia extract, 2.5 to 3 parts of
actinolite, 2 to 3 parts of nutsedge, 2 to 3 parts of dodder, 1.2 to 2 parts of
vitamin E, 1.5 to 2.5 parts of
vitamin A, 0.03 to 0.05 part of
sodium selenite, 0.01 to 0.03 part of
biotin, 10 to 15 parts of organic
chromium, 2 to 3 parts of
enzyme production probiotics, 1.5 to 2.5 parts of
phytase, 2 to 3 parts of complex
betaine, 1.5 to 2.5 parts of
methionine, 2 to 3 parts of
lysine, and 100 parts of carrier. By adopting the Chinese herbal extract, the multivitamins, the organic
chromium and the
enzyme production probiotics, the
feed additive has effects of improving
sexual function of sows and furred animals for breeding, promoting estrus, follicular maturation and superovulation of dams, improving conception rate and
litter size of breeding stock, and significantly improving reproductive performance of breeding stock.