Evidence map›Paper›PMID 11479566›Full record

ArticleNature biotechnology2001

Pigs expressing salivary phytase produce low-phosphorus manure.

S P Golovan, R G Meidinger, A Ajakaiye, M Cottrill, M Z Wiederkehr, D J Barney, C Plante, J W Pollard, M Z Fan, M A Hayes and 5 more

Erratum issuedAbstract read
PubMed Publisher
In one paragraph

Article in Nature biotechnology, 2001. 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 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
22.0field-weighted citation impact, top 1% 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

71 citing papers in PubMed, 389 citations in OpenAlex.

  1. Review
  2. Review
  3. Male germ cell technologies in large animals.The Journal of reproduction and development · 2026
    Review
  4. Pig Genome Editing for Agriculture: Achievements and Challenges.International journal of molecular sciences · 2025
    Review
  5. Molecular breeding of pigs in the genome editing era.Genetics, selection, evolution : GSE · 2025
    Review
  6. Review
  7. Exploring the biotechnological potential of novel soil-derivedFrontiers in bioengineering and biotechnology · 2024
    Article
  8. Article
  9. Review
  10. Article
  11. Improvements in pig agriculture through gene editing.CABI agriculture and bioscience · 2022
    Review
  12. Review
  13. Genome Editing in Livestock, Complicity, and the Technological Fix Objection.Journal of agricultural & environmental ethics · 2021
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review

11 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

15 authors at 2 institutions in 2 countries.

S P GolovanDepartment of Microbiology, University of Guelph, Guelph, Ontario, Canada, N1G 2W1.
R G Meidinger
A Ajakaiye
M Cottrill
M Z Wiederkehr
D J Barney
C Plante
J W Pollard
M Z Fan
M A Hayes
J Laursen
J P Hjorth
R R Hacker
J P Phillips
C W Forsberg
University of Guelph · CAAarhus University · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To address the problem of manure-based environmental pollution in the pork industry, we have developed the phytase transgenic pig. The saliva of these pigs contains the enzyme phytase, which allows the pigs to digest the phosphorus in phytate, the most abundant source of phosphorus in the pig diet. Without this enzyme, phytate phosphorus passes undigested into manure to become the single most important manure pollutant of pork production. We show here that salivary phytase provides essentially complete digestion of dietary phytate phosphorus, relieves the requirement for inorganic phosphate supplements, and reduces fecal phosphorus output by up to 75%. These pigs offer a unique biological approach to the management of phosphorus nutrition and environmental pollution in the pork industry.

Indexed as

Animals, Genetically Modified6-PhytaseAnimalsBlotting, WesternDietary SupplementsImmunohistochemistryManureParotid GlandPhosphatesPhosphorusSalivaSalivary GlandsSwineTransgenes6-PhytaseManurePhosphatesPhosphorus

Identifiers

PMID11479566
OpenAlexW1493444364

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.