Humic Acid can Increase the Laying Rate of Chickens and Ducks
According to a test study in Japan, HA is used as a feed additive for chickens that can increase egg production by 8-15% and prevent feather picking, pecking tail and soft foot disease in chickens.
Experts studied the effects of adding humic acid in feed on the production of laying hens from late to final laying period, and found that laying rate increased with feeding time, and it could inhibit the decrease of laying rate of older laying hens. In the experiment of controlling the odor of chicken manure, it was found that the higher the proportion of humic acid added, the lower the concentration of ammonia after 24 hours, and at the same time, the generation of hydrogen sulfide and methanethiol was also inhibited.
In addition, no significant effect was found when 0.5% HA was added to the feed of laying hens. When adding 1%, the laying rate was significantly increased, the ratio of feed to egg was decreased, and the fertilization rate and hatching rate of breeding eggs were significantly improved. When 2% was added, the egg production was reduced.
Therefore, the amount of HA in feed should be determined after specific tests.