Research note: Comparative estimation of genetic parameters for eggshell pigmentation traits.

Runzhe Wang, Jiahui Lai, Honglei Jin, Bingxin Luo, Chuanwei Zheng, Zhiqiong Mao, Guiyun Xu, Jiangxia Zheng

Abstract readComparative Study

In one paragraph

Article in Poultry science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

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0citing papers in PubMed

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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

8 authors.

Runzhe WangNational Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.

Jiahui LaiNational Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.

Honglei JinNational Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.

Bingxin LuoNational Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.

Chuanwei ZhengBeinongda Technology Co., Ltd., Beijing 100083, China.

Zhiqiong MaoBeinongda Technology Co., Ltd., Beijing 100083, China.

Guiyun XuNational Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.

Jiangxia ZhengNational Engineering Laboratory for Animal Breeding and MOA Key Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China. Electronic address: jxzheng@cau.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Eggshell color exhibits considerable variation, with the diversity particularly rich in shells where protoporphyrin serves as the primary pigment. The measurement of eggshell color typically employs the Commission International del'Eclairage (CIE) L*a*b* color space system, which precisely describes color based on three dimensions: lightness (L*), red-green (a*), and yellow-blue (b*). However, in comparative studies of different egg colors, the lightness value (L*) is most frequently utilized, while the use of a*and b*values remains relatively insufficient. To comprehensively evaluate eggshell color, several comprehensive color indices, including quantities of true protoporphyrin IX (Q

Indexed as

ChickensEgg ShellPigmentationAnimalsColorFemaleC*Eggshell colorEstimation of genetic parametersh°L*a*b*Q(p)SCI

Identifiers

PMID41759471

DOI10.1016/j.psj.2026.106609

PMCPMC12955618

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.