Evidence map›Paper›PMID 33332949›Full record

ArticleAnimal bioscience2021

Astaxanthin supplementation enriches productive performance, physiological and immunological responses in laying hens.

Yuanzhao Zhu, Long Yin, Jinshan Ge, Xuezhuang Wu, Yuhan Peng, Tao Zhang, Meihong Jiang

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Animal bioscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.0field-weighted citation impact, top 28% 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

11 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
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    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 2 institutions in 1 country.

Yuanzhao ZhuKey Laboratory for Animal Nutritional Regulation and Health of the Anhui Province, College of Animal Science, Anhui Science and Technology University, Bengbu 233100, China.
Long YinKey Laboratory for Animal Nutritional Regulation and Health of the Anhui Province, College of Animal Science, Anhui Science and Technology University, Bengbu 233100, China.
Jinshan GeShandong Zhongcheng feed Technology Co., Ltd, Feicheng, 271600, China.
Xuezhuang WuKey Laboratory for Animal Nutritional Regulation and Health of the Anhui Province, College of Animal Science, Anhui Science and Technology University, Bengbu 233100, China.
Yuhan PengKey Laboratory for Animal Nutritional Regulation and Health of the Anhui Province, College of Animal Science, Anhui Science and Technology University, Bengbu 233100, China.
Tao ZhangKey Laboratory for Animal Nutritional Regulation and Health of the Anhui Province, College of Animal Science, Anhui Science and Technology University, Bengbu 233100, China.
Meihong JiangKey Laboratory for Animal Nutritional Regulation and Health of the Anhui Province, College of Animal Science, Anhui Science and Technology University, Bengbu 233100, China.
Anhui University of Science and Technology · CNZoucheng People's Hospital · CN

Funding

Agricultural Science and High-level Talents Introduction Project of Anhui Institute of Science and Technology DKYJ201701Major Scientific and Technological Projects in Anhui Province 201904f06020004National Key Research and Development Plan 2016YFD0501403Open Project Program of Key Laboratory of Feed Biotechnology of China
6 · The paper itself

Abstract

objectiveAstaxanthin is a natural super antioxidant. The present study was carried out to investigate the effect of astaxanthin rich Phaffia rhodozyma (PR) supplementation in diets on laying production performance, egg quality, antioxidant defenses and immune defenses in laying hens.

methodsA total of five hundred and twelve 60-week-old Lohmann Brown laying hens (2,243±12 g) were randomly assigned to four groups, each including 4 replicates with 32 birds per replicate. Astaxanthin rich PR was added to corn-soybean meal diets to produce experimental diets containing 0 (Control), 800 mg/kg, 1,200 mg/kg, and 1,600 mg/kg PR, respectively. The astaxanthin content in the diet was 0.96 mg/kg, 1.44 mg/kg and 1.92 mg/kg respectively.

resultsResults showed that dietary PR supplementation tended to increase daily feed intake (p = 0.0512). There was no effect of astaxanthin rich PR on Haugh units, albumen height, egg shape index, eggshell strength, and eggshell thickness at weeks 6 (p>0.05). However, egg yolk color was significantly improved (p<0.05). In addition, astaxanthin rich PR supplementation significantly increased serum glutathione peroxidase and superoxide dismutase activity (p<0.05), increased serum immunoglobulin G content (p<0.05), and reduced malondialdehyde content (p<0.05) in laying hens.

conclusionIn conclusion, astaxanthin rich PR can improve the color of egg yolk, enhance the antioxidant defenses, and regulate the immune function.

Indexed as

Antioxidant DefensesAstaxanthinEgg QualityImmune DefensesLaying Hens

Identifiers

PMID33332949
PMCPMC7961203
OpenAlexW3109778393

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.