Evidence map›Paper›PMID 29126413›Full record

Trial reportBMC veterinary research2017

Leaves from banana (Musa nana) and maize (Zea mays) have no phyto-prophylactic effects on the susceptibility of grass carp (Ctenopharyngodon idella) to Aeromonas hydrophila infection.

Richard Mayrhofer, Simon Menanteau-Ledouble, Johannes Pucher, Ulfert Focken, Mansour El-Matbouli

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in BMC veterinary research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.1field-weighted citation impact, top 51% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. Review
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

5 authors at 3 institutions in 2 countries.

Richard MayrhoferClinical Division of Fish Medicine, University of Veterinary Medicine, Vienna, Austria.
Simon Menanteau-LedoubleClinical Division of Fish Medicine, University of Veterinary Medicine, Vienna, Austria.
Johannes PucherLife Science Centre, University of Hohenheim, Stuttgart, Germany.
Ulfert FockenThünen-Institute of Fisheries Ecology, Ahrensburg, Germany.
Mansour El-MatbouliClinical Division of Fish Medicine, University of Veterinary Medicine, Vienna, Austria. mansour.el-matbouli@vetmeduni.ac.at.ORCID http://orcid.org/0000-0001-8148-0218
University of Veterinary Medicine Vienna · ATLeibniz Institute of Freshwater Ecology and Inland Fisheries · DEUniversity of Hohenheim · DE

Funding

Austrian Science Fund P23850-B17Austrian Science Fund FWF P 23850
6 · The paper itself

Abstract

backgroundThe ubiquitous and opportunistic bacterial pathogen Aeromonas hydrophila has been associated with ulcerative dermatitis in fish, especially under stressful conditions. It can cause severe losses in fresh water aquaculture and is particularly prevalent in tropical and subtropical regions. Fresh leaves from maize and bananas have been used as feed supplement by fish farmers in Vietnam and it has been reported that they may have phyto-prophylactic benefits. In the present study, a feeding trial was conducted to investigate the benefits of providing maize and banana leaves as feed supplement: to determine if they were taken up and digested by grass carp (Ctenopharyngodon idella), if this uptake resulted in improved growth performance, and if leaf supplementation protected fish when challenged with A. hydrophila by intramuscular injection.

resultsAll fish were fed an identical ratio of commercial pelleted feed relative to biomass. However, in 12/18 tanks, this diet was supplemented with either fresh banana leaves or fresh maize leaves; offered ad libitum. Addition of leaves increased the overall feed conversion ratio (FCR) significantly. However, if only the pellet were taken into account, then no difference was found between treatments. Changes to the isotopic composition of the fish showed leaf nutrient uptake occurred. No prophylactic effects of feeding banana or maize leaves were detected against infection with A. hydrophila, and the diet did not induce changes in the fish haematocrit. However, addition of the maize leaves was associated with significantly reduced severity of the skin lesions, which could improve the market value of the fish.

conclusionsAddition of the leaf supplement did not result in significantly improved growth performance. Similarly, the effect of the supplement on the fish survival to infection was not significant.

Indexed as

Aeromonas hydrophilaCarpsDietary SupplementsMusaZea maysAnimal FeedAnimalsDisease SusceptibilityFish DiseasesFisheriesGram-Negative Bacterial InfectionsPlant LeavesDiet compositionFeed conversion ratioHaematocritPhytogenic supplementStable isotope δ13CStress indicator

Identifiers

PMID29126413
PMCPMC5681769
OpenAlexW2767299313

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.