Evidence map›Paper›PMID 32207523›Full record

ArticleJournal of animal science2020

Supplemental methionine and stocking density affect antioxidant status, fatty acid profiles, and growth performance of broiler chickens.

Andrew D Magnuson, Guanchen Liu, Tao Sun, Samar A Tolba, Lin Xi, Rose Whelan, Xin Gen Lei

Open access · bronzeAbstract read
In one paragraph

Article in Journal of animal science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

20 citing papers in PubMed, 45 citations in OpenAlex.

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  8. Review
  9. Meta-Analyses of Methionine Source Concept Validation Trials in Broilers.Animals : an open access journal from MDPI · 2024
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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 3 institutions in 2 countries.

Andrew D MagnusonDepartment of Animal Science, Cornell University, Ithaca, NY.
Guanchen LiuDepartment of Animal Science, Cornell University, Ithaca, NY.
Tao SunDepartment of Animal Science, Cornell University, Ithaca, NY.
Samar A TolbaDepartment of Animal Science, Cornell University, Ithaca, NY.
Lin XiDepartment of Animal Science, North Carolina State University, Raleigh, NC.
Rose WhelanEvonik Nutrition & Care GmbH, Hanau, Germany.
Xin Gen LeiDepartment of Animal Science, Cornell University, Ithaca, NY.
Cornell University · USEvonik (Germany) · DENorth Carolina State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Broilers stocked in high densities may be prone to oxidative and inflammatory insults, resulting in impaired health status, growth performance, and meat quality. This study was to determine if 30% extra supplemental dl-methionine alleviated or prevented those adverse effects of a higher stocking density in broiler chickens. A total of 560 male Cornish Cross cockerels (day old) were divided into four groups: two stocking densities (9 and 12 birds/m2) and two supplementations of methionine (grower: 2.90 or 3.77 g/kg and finisher: 2.60 or 3.38 g/kg). Growth performance was recorded weekly. Blood and tissues were sampled at the end of each period. High stocking density decreased (P < 0.05) body weight and growth performance of growers and (or) finishers. Those differences were partially attenuated by the extra methionine supplementation. The high methionine elevated (P < 0.05) glutathione (GSH) concentration in the thigh at both ages (> 24%). The high stocking density elevated (>28%, P < 0.05) glutathione concentration in the plasma, breast, and thigh of growers, but decreased (P < 0.05) it in the liver of growers and thigh of finishers. Interaction effects (P < 0.05) between dietary methionine and stocking density were found on activities of the antioxidant enzyme glutathione S-transferase in the liver of growers and breast, thigh, and adipose tissue of finishers. The interaction effect was also found on activities of glutathione peroxidase and superoxide dismutase in the thigh of growers. The extra methionine decreased (P < 0.05) hepatic gene expression of heat shock protein 90 (18%) and thigh and breast malondialdehyde concentrations of the finishers (35%). In conclusion, the 30% extra dl-methionine supplementation was able to partially mitigate adverse effects caused by the higher stocking density and to improve the redox status of the broilers.

Indexed as

Animal FeedAnimalsAntioxidantsBody WeightChickensDietDietary SupplementsFatty AcidsGlutathioneGlutathione PeroxidaseLiverMaleMalondialdehydeMethionineOxidation-ReductionSuperoxide DismutaseAntioxidantsFatty AcidsGlutathioneGlutathione PeroxidaseMalondialdehydeMethionineSuperoxide Dismutaseantioxidantbroilermethionineoxidative stressstocking density

Identifiers

PMID32207523
PMCPMC7183351
OpenAlexW3012900853

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.