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Effects of local Polynesian plants and algae on growth and expressionof two immune-related genes in orbicular batfish (Platax orbicularis)
- Source :
- Fish and Shellfish Immunology, Fish and Shellfish Immunology, Elsevier, 2016, 58, ⟨10.1016/j.fsi.2016.09.011⟩, Fish & Shellfish Immunology (1050-4648) (Academic Press Ltd-Elsevier Science Ltd), 2016-11, Vol. 58, P. 82-88
- Publication Year :
- 2016
- Publisher :
- HAL CCSD, 2016.
-
Abstract
- The emerging orbicular batfish (Platax orbicularis) aquaculture is the most important fish aquaculture industry in French Polynesia. However, bacterial infections are causing severe mortality episodes. Therefore, there is an urgent need to find an effective management solution. Besides the supplying difficulty and high costs of veterinary drugs in French Polynesia, batfish aquaculture takes place close to the coral reef, where use of synthetic persistent drugs should be restricted. Medicinal plants and bioactive algae are emerging as a cheaper and more sustainable alternative to chemical drugs. We have studied the effect of local Polynesian plants and the local opportunistic algae Asparagopsis taxiformis on batfish when orally administered. Weight gain and expression of two immune-related genes (lysozyme g e Lys G and transforming growth factor beta - TGF-b1) were studied to analyze immunostimulant activity of plants on P. orbicularis. Results showed that several plants increased Lys G and TGF-b1 expression on orbicular batfish after 2 and 3 weeks of oral administration. A. taxiformis was the plant displaying the most promising results, promoting a weight gain of 24% after 3 weeks of oral administration and significantly increasing the relative amount of both Lys G and TGF-b1 transcripts in kidney and spleen of P. orbicularis.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Fish Proteins
Asparagopsis taxiformis
Fish farming
Platax
Zoology
Immunostimulant
Aquatic Science
01 natural sciences
Polynesia
Orbicular batfish
Transforming Growth Factor beta1
03 medical and health sciences
Algae
Aquaculture
Aquatic plant
[SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN]
[SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology
Environmental Chemistry
Animals
14. Life underwater
Medicinal plants
Plants, Medicinal
biology
Ecology
business.industry
010604 marine biology & hydrobiology
Aquatic animal
General Medicine
biology.organism_classification
Animal Feed
Diet
Perciformes
Relative gene expression
030104 developmental biology
Gene Expression Regulation
Dietary Supplements
Rhodophyta
Lysozyme G
Muramidase
business
Transforming growth factor
[SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis
Subjects
Details
- Language :
- English
- ISSN :
- 10504648 and 10959947
- Database :
- OpenAIRE
- Journal :
- Fish and Shellfish Immunology, Fish and Shellfish Immunology, Elsevier, 2016, 58, ⟨10.1016/j.fsi.2016.09.011⟩, Fish & Shellfish Immunology (1050-4648) (Academic Press Ltd-Elsevier Science Ltd), 2016-11, Vol. 58, P. 82-88
- Accession number :
- edsair.doi.dedup.....371eacb58c2d65609e90175f7330b23e