Evidence map›Paper›PMID 31347675›Full record

ArticlePoultry science2019

Effects of encapsulated essential oils and organic acids on laying performance, egg quality, intestinal morphology, barrier function, and microflora count of hens during the early laying period.

Han Wang, Saisai Liang, Xueyuan Li, Xiaojun Yang, Fangyu Long, Xin Yang

Erratum issuedOpen access · hybridAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Poultry science, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
6.0field-weighted citation impact, top 3% 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

44 citing papers in PubMed, 77 citations in OpenAlex.

  1. A Blend of Essential Oils Plus Vitamin D3 Combined withAnimals : an open access journal from MDPI · 2026
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  13. Animals : an open access journal from MDPI · 2024
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  15. Effects of AddingAnimals : an open access journal from MDPI · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Han WangCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, P.R. China.
Saisai LiangCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, P.R. China.
Xueyuan LiCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, P.R. China.
Xiaojun YangCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, P.R. China.
Fangyu LongCollege of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, P.R. China.
Xin YangCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, P.R. China.
Northwest A&F University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The objective of this study was to investigate the effect of encapsulated essential oils and organic acids (EOA) on the growth performance, egg quality, intestinal morphology and functions, and microbial count of laying hens from week 21 to 30. A total of five hundred and four 21-wk-old layers were randomly allotted into 4 groups consisting of 7 replicates with 18 birds per replicate. The birds were fed a basic diet (CON) or diets with EOA at 150 mg/kg, 300 mg/kg, and 450 mg/kg in the other 3 groups, respectively. Compared to the CON group, the addition of 150 mg/kg EOA significantly increased laying rate (P < 0.05) of hens from week 21 to 25. A linear increasing (linear, P < 0.01) in ileal villus height of laying hens fed EOA from 150 to 300 mg/kg was observed at week 30. At week 25, the supplementation of 300 mg/kg EOA significantly increased (P < 0.05) mRNA relative expression of aminopeptidase, sodium-glucose cotransporter 1, and Na+-independent neutral amino acid transporter in duodenum and glucose transporter 2 in jejunum of laying hens compared to the CON groups. Meanwhile, the relative expression of glucose transporter 2 mRNA in the jejunum was upregulated with increasing concentration of EOA in diets (linear, P < 0.05). Hens in EOA 300 group had higher mRNA relative expression of mucin-2 in ileum (P < 0.05) than hens in CON group. Additionally, the secretory immunoglobulin in ileum A were linear decreased (linear, P < 0.01) with the increasing supplement of EOA. Dietary supplementation with EOA tended to increase (P = 0.083) the counts of Bifidobacterium in cecal digesta at week 25 and 30. In conclusion, dietary with EOA may maintain intestinal tract morphology and promote digestive and absorptive capacities and barrier function, especially at 300 mg/kg. This study provided evidence of using EOA as a potential feed additive for laying hens.

Indexed as

AcidsAnimal FeedAnimalsChickensDietDietary SupplementsDose-Response Relationship, DrugFemaleIntestinesMicrobiotaOils, VolatileOvumRandom AllocationReproductionAcidsOils, Volatileessential oilgut microfloraintestinal functionlaying henorganic acid

Identifiers

PMID31347675
PMCPMC8913957
OpenAlexW2966600232

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.