Evidence map›Paper›PMID 41202591›Full record

ArticlePoultry science2025

Comparative study of gut microbiota profiles and reproductive traits in high- and low-laying chickens.

Abdallah A Nafady, Shereen S Ghoneim, Tahani S Behour, Muhammad Akhtar, Islam M Youssef, Mahmoud Abd-Elkareem, Sabbah F Youssef, Huazhen Liu, Mohamed E Abd El-Hack, Mohammad M H Khan and 3 more

Abstract readComparative Study
In one paragraph

Article in Poultry science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Impact ofFrontiers in veterinary science · 2026
    Article
  7. Article
  8. Frontiers in veterinary science · 2026
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Abdallah A NafadyKey Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China; Department of Veterinary Anatomy and Embryology, Faculty of Veterinary medicine, Aswan University, Aswan, 81528, Egypt.
Shereen S GhoneimAnimal Production Research Institute (APRI), Agricultural Research Center (ARC), Dokki, Giza, 12651, Egypt.
Tahani S BehourBiotechnology Research Unit, Animal Reproduction Research Institute (ARRI), Agricultural Research Center (ARC), Al Haram, Giza, 12651, Egypt.
Muhammad AkhtarKey Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China.
Islam M YoussefAnimal Production Research Institute (APRI), Agricultural Research Center (ARC), Dokki, Giza, 12651, Egypt.
Mahmoud Abd-ElkareemDepartement of Cells and Tissues, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt.
Sabbah F YoussefAnimal Production Research Institute (APRI), Agricultural Research Center (ARC), Dokki, Giza, 12651, Egypt.
Huazhen LiuKey Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, Huazhong Agricultural University, Wuhan, 430070, People's Republic of China. Electronic address: lhz219@mail.hzau.edu.cn.
Mohamed E Abd El-HackDepartment of Industrial Pharmacy, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology (MUST), P.O. Box 77, Giza, Egypt.
Mohammad M H KhanDepartment of Biochemistry and Chemistry, Faculty of Biotechnology and Genetic Engineering, Sylhet Agricultural University, 3100 Sylhet, Bangladesh. Electronic address: mehedi2001dbdb@gmail.com.
Hanan M AlharbiDepartment of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.
Khairiah M AlwutaydDepartment of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.
El-Sayed M Abdel-KafyAnimal Production Research Institute (APRI), Agricultural Research Center (ARC), Dokki, Giza, 12651, Egypt.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Egg production, one of the most important economic traits of chickens, is largely regulated by interactions of genetic, endocrine, and environmental factors. Gut microbiota is the main environmental factor that is closely related to egg production. However, the key gut microbiota affecting egg production is still unknown. Therefore, Golden Montazah (GM) chickens (Rhode Island Red × Dokki-4 chickens) of 44 weeks of age were housed separately. After keeping track of egg laying for 90 consecutive days, 10 laying hens were selected for the H group (with a higher egg laying rate) based on the laying level, and 10 laying hens were assigned to the L group (with a lower egg laying rate). Grossly, the number of eggs (P < 0.0001) and the number of hierarchical follicles (P < 0.001) were significantly higher in the ovaries of high egg production chickens. HE staining results indicated that the granulosa cell thickness of large white follicles (LWFs) was significantly higher (P < 0.001) in high egg production chickens. 16S rRNA gene sequencing results showed that the relative abundance of Firmicutes was higher both in the ileum and cecum of high egg production chickens, yet the relative abundance of Proteobacteria was higher in the ileum of low egg production chickens. Further, Spearman correlation analysis indicated that the relative abundance of cecal Lachnoclostridium was positively correlated with the egg number and hierarchical follicle number, while the relative abundance of ileal Olsenella was significantly (P < 0.05) and positively correlated with the egg number. Yet the relative abundance of cecal Collinsella was significantly (P < 0.05) and negatively correlated with the egg number. Our findings indicated that gut microbiota is associated with the egg-laying performance of chickens.

Indexed as

ChickensGastrointestinal MicrobiomeReproductionAnimalsFemaleRNA, Ribosomal, 16SRNA, Ribosomal, 16SChickensEgg productionFollicular developmentGut healthGut microbiota

Identifiers

PMID41202591
PMCPMC12747197

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

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.