Feed additive for laying hen and feed containing the same

摘要

A feed additive for laying hens comprising lactobionic acid or a lactobionic acid salt and a feed characterized by containing a feed additive for laying hens comprising lactobionic acid or a lactobionic acid salt and a feed. Namely, a feed additive for laying hens, which is excellent in effect of reinforcing eggshells, shows a particularly remarkable effect of improving eggshell qualities in the second half of the laying period, relieves stress caused by forced molting, cage transfer and so on and can inhibit lowering in the egg-laying rate.

主权项

1. A method of reinforcing eggshells of eggs laid by hens, which comprises the step of administering to an egg-laying hen in need thereof an effective amount of lactobionic acid or an inorganic salt thereof.