Evidence map›Paper›PMID 33799457›Full record

ArticleAnimals : an open access journal from MDPI2021

Dietary Tryptophan Levels Impact Growth Performance and Intestinal Microbial Ecology in Weaned Piglets via Tryptophan Metabolites and Intestinal Antimicrobial Peptides.

Zebin Rao, Jinlong Li, Baoshi Shi, Yan Zeng, Yubo Liu, Zhihong Sun, Liuting Wu, Weizhong Sun, Zhiru Tang

Open access · goldAbstract read
In one paragraph

Article in Animals : an open access journal from MDPI, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.5field-weighted citation impact, top 10% 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

29 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. Article
  3. TheFoods (Basel, Switzerland) · 2026
    Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Tryptophan metabolism and piglet diarrhea: Where we stand and the challenges ahead.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2024
    Article
  14. Article
  15. Amino acids in piglet diarrhea: Effects, mechanisms and insights.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2024
    Review
  16. Intestinal tryptophan metabolism in disease prevention and swine production.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2023
    Review
  17. Article
  18. Article
  19. Review
  20. 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

9 authors at 2 institutions in 1 country.

Zebin RaoLaboratory for Bio-Feed and Molecular Nutrition, College of Animal Science and Technology, Southwest University, Chongqing 400715, China.
Jinlong LiLaboratory for Bio-Feed and Molecular Nutrition, College of Animal Science and Technology, Southwest University, Chongqing 400715, China.
Baoshi ShiLaboratory for Bio-Feed and Molecular Nutrition, College of Animal Science and Technology, Southwest University, Chongqing 400715, China.
Yan ZengHunan Institute of Microbiology, Changsha 410009, China.
Yubo LiuHunan Institute of Microbiology, Changsha 410009, China.
Zhihong SunLaboratory for Bio-Feed and Molecular Nutrition, College of Animal Science and Technology, Southwest University, Chongqing 400715, China.
Liuting WuLaboratory for Bio-Feed and Molecular Nutrition, College of Animal Science and Technology, Southwest University, Chongqing 400715, China.
Weizhong SunLaboratory for Bio-Feed and Molecular Nutrition, College of Animal Science and Technology, Southwest University, Chongqing 400715, China.
Zhiru TangLaboratory for Bio-Feed and Molecular Nutrition, College of Animal Science and Technology, Southwest University, Chongqing 400715, China.
Southwest University · CNHunan Institute of Microbiology · CN

Funding

Chongqing key innovation project for overseas students cx2017024National Key R&D Program of China 2018YFD0501000National Natural Science Foundation of China 31772610, 31872370
6 · The paper itself

Abstract

Tryptophan (Trp) plays an important role in piglet growth. However, the effect of dietary Trp on microbial flora is still poorly understood. A total of 40 28-d weaned piglets were allocated to four groups with 10 barrows per group and one pig per replicate. Piglets were fed a corn and soybean meal-based diet with 0.14%, 0.21%, 0.28%, or 0.35% Trp for four weeks. Five piglets from each diet group were euthanized, and blood and tissue samples were collected. The average daily body weight gain, average daily feed intake, feed conversion ratio, spleen index, pancreas index, longissimus dorsi muscle index, plasma insulin, 5-hydroxytryptamine, kynurenine, and Trp concentrations of weaned piglets increased in a dose-dependent manner (

Indexed as

amino acidgut microbial ecologyindoleamine 2,3-dioxygenasepigporcine β-defensin

Identifiers

PMID33799457
PMCPMC7999158
OpenAlexW3136332674

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.