Evidence map›Paper›PMID 32666433›Full record

ArticleBiological trace element research2021

Effects of Replacing Inorganic with Organic Iron on Performance, Egg Quality, Serum and Egg Yolk Lipids, Antioxidant Status, and Iron Accumulation in Eggs of Laying Hens.

Sima Sarlak, Sayed Ali Tabeidian, Majid Toghyani, Amir Davar Foroozandeh Shahraki, Mohammad Goli, Mahmood Habibian

Abstract read
PubMed Publisher
In one paragraph

Article in Biological trace element research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.0field-weighted citation impact, top 9% of its field
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

19 citing papers in PubMed, 37 citations in OpenAlex.

  1. A review of the iron requirements and its determination in commercial poultry.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2026
    Review
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  3. Article
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  5. Article
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  7. Review
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  10. Ferula (Frontiers in veterinary science · 2024
    Article
  11. Article
  12. Review
  13. Article
  14. Effects of dietaryFrontiers in microbiology · 2023
    Article
  15. Supplementation ofAnimals : an open access journal from MDPI · 2022
    Article
  16. Article
  17. Article
  18. Article
  19. 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

6 authors at 1 institution in 1 country.

Sima SarlakDepartment of Animal Science, Faculty of Agriculture, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.ORCID https://orcid.org/0000-0001-5236-4090
Sayed Ali TabeidianDepartment of Animal Science, Faculty of Agriculture, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran. tabeidiansa@gmail.com.ORCID https://orcid.org/0000-0001-7318-3635
Majid ToghyaniDepartment of Animal Science, Faculty of Agriculture, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.ORCID https://orcid.org/0000-0003-0470-856X
Amir Davar Foroozandeh ShahrakiDepartment of Animal Science, Faculty of Agriculture, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.ORCID https://orcid.org/0000-0002-1844-967X
Mohammad GoliDepartment of Food Sciences and Technology, Faculty of Agriculture, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.ORCID https://orcid.org/0000-0002-6933-635X
Mahmood HabibianYoung Researchers and Elite Club, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.ORCID https://orcid.org/0000-0003-3455-8144
Islamic Azad University, Isfahan · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study compared the effects dietary organic (ferrous glycine [FG]) versus inorganic (ferrous sulfate [FS]) iron in laying hens on performance, egg quality, serum and egg yolk lipids, antioxidant status, and iron enrichment of eggs. A total of 378 Shaver White layers were allotted to 7 treatments with 6 replicates (9 birds each) from 30 to 42 weeks of age. A basal diet (19 mg iron/kg) served as control, while the other six diets were supplemented with either FS or FG to provide 30, 60, and 120 mg/kg of added iron. Dietary FG and FS treatments improved (P < 0.05) laying rate, egg weight, and egg quality of layers, relative to the control, albeit eggshell strength and eggshell calcium also deteriorated with the highest level of FS (P < 0.05). The iron treatment groups exhibited a lower serum and egg yolk levels of triglycerides, total cholesterol, and low-density lipoprotein cholesterol that accompanied by higher levels of high-density lipoprotein cholesterol and greater activities of superoxide dismutase (SOD) and glutathione peroxidase (GPx) as compared with the control (P < 0.05). The contents of malondialdehyde and protein carbonyl were conversely related to the activities SOD and GPx (P < 0.05). The serum and egg fractions (yolk, albumen, and shell) displayed gradually increases in iron contents as the level of iron increased in the diet (P < 0.05), while FG was superior to FS at all tested levels (P < 0.05). To summary, FS can be replaced by FG, with more favorable impacts on egg quality and iron enrichment.

Indexed as

AntioxidantsEgg YolkAnimal FeedAnimalsChickensDietDietary SupplementsEggsFemaleIronLipidsAntioxidantsIronLipidsAntioxidant statusEgg qualityIronIron enrichmentLaying henPerformance

Identifiers

PMID32666433
OpenAlexW3043572280

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.