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Illumination method for improving eggshell quality in later egg laying period of laying hens

A technology for laying hens and eggshells, applied in the field of livestock and poultry breeding, can solve the problems of uneven calcium deposition on the eggshell surface, reproductive organ damage, eggshell calcification disorder, etc., so as to facilitate egg production rate, improve egg quality and maintain production. performance effect

Pending Publication Date: 2022-01-21
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the late stage of laying, the intestinal digestion and absorption function and reproductive organs of laying hens are severely damaged, and the activation of calcium ion transporters in the endometrium of eggshell glands is reduced, causing disordered eggshell calcification and uneven calcium deposition on the surface of eggshells, which seriously affects eggshell quality

Method used

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  • Illumination method for improving eggshell quality in later egg laying period of laying hens
  • Illumination method for improving eggshell quality in later egg laying period of laying hens
  • Illumination method for improving eggshell quality in later egg laying period of laying hens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The illumination method for improving the eggshell quality of laying hens in the late laying period adopts the following steps:

[0031] (1) Feeding management

[0032] Choose a commercial diet, and feed the laying hens ad libitum food and water;

[0033] (2) Lighting treatment

[0034] In the later stage of laying eggs, under the conditions of room temperature 24°C and relative humidity 60%, a 40w incandescent bulb is used, and the intensity of light is 20lx, and light is carried out at 6:00-16:00 and darkness at 16:00-6:00 every day ( 10L / 14D) light mode irradiation; the irradiation period should be maintained for at least 10 weeks.

Embodiment 2

[0036] As the application of the lighting method in Example 1 in laying hen breeding, the quality of eggs can be significantly improved, and the egg breaking rate of feeding laying hens is reduced to 5.5%, and the egg production rate is increased to 72%. The specific gravity, strength, and thickness of the shell are all significantly increased, and the color of the yolk is also improved, and the number of dark-spotted eggs is reduced.

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Abstract

The invention relates to the technical field of livestock and poultry breeding, in particular to an illumination method for improving the eggshell quality in the later egg laying period of laying hens. The illumination method for improving the eggshell quality in the later egg laying period of the laying hens comprises the step of performing 10L / 14D illumination period treatment in the feeding process. According to the illumination method for improving the eggshell quality in the later egg laying period of the laying hens, the feeding cost is reduced, the production performance in the later egg laying period is maintained, the eggshell quality is improved, the egg breaking rate is reduced, medicine intervention is reduced to a certain extent, the economic and ecological benefits of laying hen production are improved, and healthy breeding of the laying hens is achieved.

Description

technical field [0001] The invention relates to the technical field of livestock and poultry breeding, in particular to a lighting method for improving eggshell quality of laying hens in the late laying period. Background technique [0002] According to investigations, eggs without economic value produced in the late stage of laying can reach about 8%-10%. After the laying hen enters the late stage of egg production (60 weeks of age), due to the decline of metabolic function, the ability to digest and absorb feed is weakened, coupled with reproductive system damage, resulting in a decline in egg production rate and egg quality, and the color of the eggshell becomes lighter and the surface of the eggshell becomes weaker. Problems with roughness, dark spots, brittle shells, loose texture, etc. The egg production rate of Hailan brown layer chickens in the late laying period drops by about 35%-45%, and the egg breaking rate reaches 10%-20%, among which the egg breaking rate due...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 王晓鹃田通林海焦洪超赵景鹏
Owner SHANDONG AGRICULTURAL UNIVERSITY
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