This invention belongs to the technical field of laying hen feed additives, specifically relating to a
selenium-enriched, high-DHA, low-
cholesterol functional egg
feed additive and its preparation method. The additive is prepared by compounding selenized
ginseng polysaccharide,
Schizochytrium algae powder,
rosemary extract, natural
vitamin E, EGCG
green tea extract,
phytosterol micron
powder,
sodium butyrate, β-
glucan,
phytase, modified attapulgite clay, and
maltodextrin in
specific weight parts, followed by low-temperature premixing activation,
antioxidant encapsulation treatment, low-temperature compound
granulation, sieving, and packaging processes. This invention, through the synergistic effect of its components, enables eggs to reach stable functional indicators within 14 days of feeding. The
yolk selenium content reaches 32.1~38.2 μg / 100g, DHA content reaches 210.5~261.7 mg / 100g, and
cholesterol reduction rate reaches 16.7%~22.3%. Simultaneously,
eggshell strength increases by 12.1%~18.5%, egg
production rate remains at 95.1%~96.8%, and egg
breakage rate decreases by 59.0%~72.0%. The product exhibits good stability, requires low dosage, and is easy to use, making it perfectly suited for large-scale egg-laying hen farming scenarios and possessing outstanding economic and health value.