The main components of propolis are flavonoids, phenols, lactones, coumarins, aldehydes and ketones, self-class compounds, a small amount of trace elements such as iron, calcium, silicon, manganese, lead, nickel, aluminum, copper, zinc, etc. Vitamin B family, vitamin A and various amino acids, enzymes, polysaccharides and abundant aphanosulfuric acid. Propolis has antibacterial, anti-mold, antiviral, and functions of promoting immunity and tissue regeneration.
Propolis as a feed additive added to the diet can promote the growth and weight gain of livestock and poultry, and can enhance the resistance to disease, and effectively improve economic efficiency. Tests confirmed that adding 5% propolis lotion to finishing pigs' diets can increase the weight gain of finishing pigs by 12.8%, saving 18% to 28% of feed, and adding 5% of propolis milk to the diets of chicks to feed 75 days of age. The average weight gain of the control group was 12%; 5% of propolis emulsion was added to the hen's diet to increase the egg production rate by 16%, feed consumption by 14%, and mortality rate by 22%.
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