A feed additive for increasement of egg production of hen a feed composition and a breeding method using the same

摘要

[0001] The present invention relates to a feed additive for increasing the egg laying rate of a laying hens, a feed composition using the feed additives, and a breeding method, and more particularly, to an animal feed composition comprising an enzyme degradation product of a livestock skin byproduct obtained by treating a livestock skin by- , A feed additive for increasing the egg production rate which can increase the egg production rate of the laying hens without affecting the health condition of the egg and laying hens, the feed composition using the feed additives and the breeding method.