A laying hen
feed additive prepared from non-medicinal parts of
abelmoschus manihot is prepared from roots and stems of
abelmoschus manihot according to the
mass ratio of (1-5): (2-6), and the
abelmoschus manihot is added into a feed according to the proportion of 1-5%. The
feed additive is prepared by mixing roots and stems of
abelmoschus manihot according to a specific proportion, and then the
feed additive is added into the basal feed according to a specific proportion, so that the
egg laying performance of laying hens is effectively improved, the egg yield of 180 laying hens is increased by 690 after the laying hens are fed for 70 days, the total egg weight is increased by 57.26 kg, the egg quality of the laying hens is remarkably improved, and the economic benefit of the laying hens is improved. Compared with a CK group, the content of
linoleic acid, gamma-
linolenic acid and alpha-
linolenic acid in
unsaturated fatty acid in eggs is increased by 9.03%, 39.66% and 50.72% respectively,
cholesterol is reduced by 29.91%, only roots and stems of
abelmoschus manihot are used as additive raw materials, other raw materials do not need to be mixed to prepare the additive, and excellent effects can be achieved on
egg laying performance and egg quality of laying hens.