Evidence map›Paper›PMID 42375250›Full record

ArticleOpen veterinary journal2026

Effect of dietary lemon citrus peel as a natural feed additive on egg yield and quality parameters in spent laying hens.

Bushra M W Al-Obaidi, Osama A Saeed, Hassan M Alnori, Zubeida M Jasim

Abstract read
In one paragraph

Article in Open veterinary journal, 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

4 authors.

Bushra M W Al-ObaidiDepartment of Public Health, College of Veterinary Medicine, University of Fallujah, Iraq.
Osama A SaeedDepartment of Animal Production, College of Agriculture, University of Anbar, Ramadi, Iraq.
Hassan M AlnoriDepartment of Animal Production, College of Agriculture, University of Anbar, Ramadi, Iraq.
Zubeida M JasimDepartment of Food Sciences, College of Agriculture, University of Anbar, Ramadi, Iraq.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The demand for sustainable, natural feed additives in the poultry industry is gradually increasing to make production more efficient and increase the quality of the products, especially in spent laying hens. Aim: This study examined the benefits of dietary dried lemon citrus peel (DLCP) supplementation on egg performance and egg quality in aged laying hens at the end of their production life. Methods: Eighty Lohmann hens at 64 weeks postmolt age and 2700 ± 75 g average body weight were randomly divided into four dietary treatment groups: basal diet (control, T1), basal diet + 10 g/kg DLCP (T2), basal diet + 15 g/kg DLCP (T3), and basal diet + 20 g/kg DLCP (T4). The experiment lasted for 4 weeks with four replicates of five hens for each treatment. The productivity performance and internal and external egg quality traits were evaluated. Results: The egg production rates were significantly higher ( Conclusion: Similarly, T4 showed better results for the internal quality attributes such as yolk height, width, and weight. The T4 group showed a higher egg production of about 15% than the control group, indicating a clear improvement in laying performance. Based on this finding, a diet containing 20 g/kg DLCP will enhance production and egg quality and can sustainably facilitate the use of agricultural residues for layer feeding.

Indexed as

Animal FeedChickensCitrusEggsAnimal Nutritional Physiological PhenomenaAnimalsDietDietary SupplementsFemaleOvipositionDried lemon citrus peelEgg productionEgg qualityFeed additiveSpent hens

Identifiers

PMID42375250
PMCPMC13313895

What OpenQuestion holds

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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.