Evidence map›Paper›PMID 41933525›Full record

ArticlePoultry science2026

Effect of GnRH administration on egg production, hormonal and biochemical profile and ovarian histomorphology of spent naked neck layers.

Shahid Khan, Sarzamin Khan, Shabana Naz, Rifat Ullah Khan, Ala Abudabos, Raed M Al-Atiyat, Ali R Al Sulaiman, Sohail Ahmad, Ibrahim A Alhidary

Abstract read
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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
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

9 authors.

Shahid KhanDepartment of Poultry Science, Faculty of Animal Husbandry and Veterinary Sciences, The University of Agriculture, Peshawar, Pakistan.
Sarzamin KhanDepartment of Poultry Science, Faculty of Animal Husbandry and Veterinary Sciences, The University of Agriculture, Peshawar, Pakistan.
Shabana NazDepartment of Zoology, Government College University, Faisalabad, Pakistan. Electronic address: drshbananaz@gcuf.edu.pk.
Rifat Ullah KhanPhysiology Lab, College of Veterinary Sciences, Faculty of Animal Husbandry and Veterinary Sciences, The University of Agriculture, Peshawar, Pakistan. Electronic address: rukhan@aup.edu.pk.
Ala AbudabosDepartment of Food and Animal Sciences, College of Agriculture, Tennessee State University, Nashville, TN, 37209, USA.
Raed M Al-AtiyatMolecular Genetics, breeding and Biotechnology, Animal Sci. Dep., Agriculture Faculty, Mutah University, Karak, Jordan.
Ali R Al SulaimanEnvironmental Protection Technologies Institute, Sustainability and Environment Sector, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh, 11442, Saudi Arabia.
Sohail AhmadIslamic University of Afghanistan, Kabul, Afghanistan.
Ibrahim A AlhidaryDepartment of Animal Production, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study evaluated the effects of GnRH administration on egg production, hormonal and biochemical profile and ovarian histomorphology in spent Naked Neck layers. A total of 150 seventy-two-week-old Naked Neck spent layers were assigned to three treatment groups: a control receiving physiological saline (DL0), GnRH administration every three days (DL1), and GnRH administration every seven days (DL2). Egg production significantly increased (P < 0.001) in GnRH-treated groups from week two onward, with DL2 showing the highest production (52.38% at day 42) compared to DL1 (45.71%) and DL0 (15.23%). Follicle-stimulating hormone (FSH) and luteinizing hormone (LH) levels significantly increased (P < 0.001) in GnRH-treated groups. By day 42, FSH levels reached 2.649 IU/ml in DL2, followed by 1.959 IU/ml in DL1, while the control remained at 1.450 IU/ml. Similarly, LH levels peaked at 0.792 IU/ml in DL2, significantly higher than DL1 (0.627 IU/ml) and DL0 (0.355 IU/ml). Ovarian histomorphology revealed significant follicular development in GnRH-treated groups. Overall, GnRH administration improved reproductive performance in spent layers, with weekly injections (DL2) demonstrating the most pronounced effects on egg production and hormonal profiles.

Indexed as

ChickensGonadotropin-Releasing HormoneOvaryReproductionAnimalsFemaleFollicle Stimulating HormoneLuteinizing HormoneFollicle Stimulating HormoneGonadotropin-Releasing HormoneLuteinizing HormoneFollicle stimulating hormoneGonadotropin releasing hormoneLuteinizing hormoneSerum biochemistry

Identifiers

PMID41933525
PMCPMC13068853

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Registered trials

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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.