Research Progress on Improving Eggshell Quality in Late Laying Period

  • ZHANG Yijian ,
  • HU Yan ,
  • LIANG Mingzhen ,
  • TONG Haibing
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  • 1. Poultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou 225125, China;
    2. College of Animal Science and Technology, Guangxi University, Nanning 530000, China

Received date: 2020-06-23

  Online published: 2021-02-04

Supported by

 

Abstract

Eggshell quality is an important indicator for evaluating egg quality. It is related to the breakage rate during the transportation and storage of eggs, and is directly related to the pass rate of breeding eggs, hatching rate and the health of chicks. It is one of the important factors affecting the production efficiency of laying hens. The aging of laying hens is the main factor leading to the decline of eggshell quality in the later stages of laying. Especially in recent years, the laying cycle of commercial laying hens has been greatly prolonged, and the aging degree of laying hens has been higher, resulting in a more serious problem of the decline of eggshell quality in the later stage of laying. This article summarized the reasons for the decline of eggshell quality in the late laying period from the eggshell formation process and calcium metabolism process, and summarized and prospected the solutions to improve the eggshell quality in the late laying period.

Cite this article

ZHANG Yijian , HU Yan , LIANG Mingzhen , TONG Haibing . Research Progress on Improving Eggshell Quality in Late Laying Period[J]. Chinese Journal of Animal Nutrition, 2021 , 33(2) : 686 -697 . DOI: 10.3969/j.issn.1006-267x.2021.02.010

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