Feed for improving the performance and shell quality of laying hens in the late laying period

Abstract

A forage for improving later-period production performance of laying hens and eggshell quality comprises, in parts by weight, 45-50 parts of corn, 10-15 parts of soybean meal, 8-12 parts of wheat, 5-10 parts of corn germ cake, 3-6 parts of alfalfa meal, 4-6 parts of calcium particles, 4-6 parts of brewer's grains, 3-5 parts of calcium powder, 2-4 parts of corn gluten meal, 0.5-1 part of calcium hydrogen phosphate, 0.1-0.2 part of bentonite, 0.2-0.4 part of plant grease, 0.0005-0.0008 part of betaine, 0.2-0.4 part of edible salt, 0.2-0.4 part of lysine, 0.1-0.2 part of composite vitamins, 0.1-0.2 part of choline, 0.1-0.2 part of composite trace elements, 0.1-0.2 part of sodium bicarbonate, 0.1-0.2 part of methionine and 0.002-0.006 part of phytase. The forage is capable of satisfying nutrition demands of laying hens at a later period, improving laying rate and eggshell thickness, and improving eggshell quality.

Description

technical field [0001] The invention relates to a feed for chickens, in particular to a feed for laying hens used for improving the production performance and eggshell quality of laying hens in the late laying period. Background technique [0002] The laying cycle is the most important indicator that affects the efficiency of laying hens. The late laying period (from 50 weeks of age to culling) accounts for nearly 50% of the laying period, so the performance of laying hens directly affects the production of laying hens. level of benefit. Laying hens are facing two serious problems in the late stage of laying eggs: on the one hand, due to the gradual decline of the glandular function of reproductive hormones secreted in the body, the pituitary gland secretes follicle-stimulating hormone (FSH), progesterone P 4 , Estradiol E 2 The concentration of various hormones such as hormones gradually decreased, resulting in restricted follicular development, decreased ovulation, and d...

AI Technical Summary

Problems solved by technology

Laying hens are facing two serious problems in the late stage of laying eggs: on the one hand, due to the gradual decline of the glandular function of reproductive hormones secreted in the body, the pituitary gland secretes follicle-stimulating hormone (FSH), progesterone P 4 , Estradiol E 2 The concentration of various hormones such as hormones gradually decreased, resulting in restricted follicular development, decreased ovulation, and decreased egg production rate; The increase in egg weight is not enough, so the thickness of the eggshell is getting thinner and the quality of the eggshell is getting worse. The specific performance is that the egg breaking rate increases, and the effect of improving the quality of the eggshell by increasing the calcium content is not obvious enough.

At present, most dietary formulas are not obvious enough to improve the laying performance and eggshell quality of laying hens in the late laying period. The key lies in the failure to improve the secretion of hormones related to laying eggs in laying hens.

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