The invention relates to a compound
feed additive used in the laying period of breeding hens and a preparation method thereof, and belongs to the technical field of breeding hens breeding and
hatching. The invention discloses a compound
feed additive. Comprising the following components in parts by weight: 15 to 25 parts of
clostridium butyricum, 25 to 35 parts of
bacillus subtilis, 12 to 18 parts of
bacillus licheniformis, 5 to 15 parts of
vitamin B family, 2 to 4 parts of
choline dihydrogen citrate, 2 to 5 parts of herba epimedii extract, 0.2 to 0.4 part of nano L-selenomethionine, 4 to 6 parts of
bile acid, 5 to 8 parts of
yeast cell wall
polysaccharide, 2 to 5 parts of organic
zinc, 5 to 15 parts of trace elements and 1 to 3 parts of
phytase. Through scientific proportioning and synergistic effect of multiple functional components, the feed improves intestinal health of breeding hens, improves reproductive performance, enhances
immunity, promotes
digestion and absorption of the breeding hens to
nutrient substances in the feed, improves feed conversion rate and reduces feed-egg ratio.