Evidence map›Paper›PMID 32616255›Full record

ArticlePoultry science2020

Effects of in ovo feeding of N-acetyl-L-glutamate on early intestinal development and growth performance in broiler chickens.

Jiguang Wang, Jing Lin, Jing Wang, Shugeng Wu, Guanghai Qi, Haijun Zhang, Zhigang Song

Open access · goldAbstract read
In one paragraph

Article in Poultry science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed, 32 citations in OpenAlex.

  1. Establishment of In OvoAnimals : an open access journal from MDPI · 2026
    Article
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  9. Physiological effects ofFrontiers in veterinary science · 2023
    Review
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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

7 authors at 4 institutions in 1 country.

Jiguang WangDepartment of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, P. R. China.
Jing LinRisk Assessment Laboratory of Feed Derived Factors to Animal Product Quality Safety of Ministry of Agriculture & Rural Affairs, and National Engineering Research Center of Biological Feed, Feed Research Institute of Chinese Academy of Agricultural Sciences, Beijing, 100081 P. R. China.
Jing WangRisk Assessment Laboratory of Feed Derived Factors to Animal Product Quality Safety of Ministry of Agriculture & Rural Affairs, and National Engineering Research Center of Biological Feed, Feed Research Institute of Chinese Academy of Agricultural Sciences, Beijing, 100081 P. R. China.
Shugeng WuRisk Assessment Laboratory of Feed Derived Factors to Animal Product Quality Safety of Ministry of Agriculture & Rural Affairs, and National Engineering Research Center of Biological Feed, Feed Research Institute of Chinese Academy of Agricultural Sciences, Beijing, 100081 P. R. China.
Guanghai QiRisk Assessment Laboratory of Feed Derived Factors to Animal Product Quality Safety of Ministry of Agriculture & Rural Affairs, and National Engineering Research Center of Biological Feed, Feed Research Institute of Chinese Academy of Agricultural Sciences, Beijing, 100081 P. R. China.
Haijun ZhangRisk Assessment Laboratory of Feed Derived Factors to Animal Product Quality Safety of Ministry of Agriculture & Rural Affairs, and National Engineering Research Center of Biological Feed, Feed Research Institute of Chinese Academy of Agricultural Sciences, Beijing, 100081 P. R. China. Electronic address: zhanghaijun@caas.cn.
Zhigang SongDepartment of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, P. R. China. Electronic address: naposong@qq.com.
Feed Research Institute · CNShandong Agricultural University · CNChinese Academy of Agricultural Sciences · CNMinistry of Agriculture and Rural Affairs · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The present study determined the effects of in ovo feeding (IOF) of N-acetyl-L-glutamate (NAG) on early intestinal development and growth performance of broilers. A total of 702 fertile broiler eggs were randomly divided into 3 treatments: 1) non-punctured control group, 2) saline-injected control group, and 3) NAG solution-injected group (1.5 mg/egg). At 17.5 D of incubation, 300 μL of each solution was injected into each egg of injected groups. Results indicated that the hatchability and healthy chicken rate were not affected by NAG injection (P > 0.05). Chicks from NAG solution-injected group had significantly decreased average daily feed intake and feed conversion ratio during 1-14 D than those in the non-punctured control group (P < 0.05). Compared with the non-punctured control group, IOF of NAG significantly increased the density of goblet cells in jejunum at hatch, duodenum at 7 D, and ileum at 14 D; decreased crypt depth in jejunum at hatch; and increased villus height in duodenum and jejunum and villus height:crypt depth ratio in duodenum at 7 D (P < 0.05). The intestinal mRNA expression of Na

Indexed as

Animal FeedAnimalsChickensDietDietary SupplementsDose-Response Relationship, DrugGlutamatesIntestinesOvumRandom AllocationGlutamatesN-acetylglutamic acidgrowth performanceintestinal developmentintestinal morphologyN-acetyl-L-glutamatenutrient transporter

Identifiers

PMID32616255
PMCPMC7597834
OpenAlexW3018498950

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.