METHOD FOR INCREASING PRODUCTIVITY IN BREEDER HENS

摘要

A method for increasing chick production by increasing the level of L-DOPA in the bloodstream of breeder hens is described. Chick production is increased by increasing rates of egg laying, fertility of laid eggs, and number of fertile eggs that hatch. Methods for reducing the effects of stress on egg laying by increasing the level of L-DOPA in the bloodstream of breeder hens are also described.