Feed additive for laying hens and feed containing the agent

摘要

A feed comprising a feed additive for a laying hen made of lactobionic acid or a salt of lactobionic acid, and a feed additive for a laying hen made of lactobionic acid or a salt of lactobionic acid and a feed. There is a feed additive for laying hens that is excellent in eggshell strengthening, especially effective in improving eggshell quality in the second half of egg laying, and that can relieve stress caused by forced molting, gauge movement, etc. Provided.