Effect of spirulina (Arthrospira platensis) supplementation on tilapia (Oreochromis niloticus) growth and stress responsiveness under hypoxia

Plaza Gordo, Ignacio and García López, José Luis and Villarroel Robinson, Morris Ricardo (2018). Effect of spirulina (Arthrospira platensis) supplementation on tilapia (Oreochromis niloticus) growth and stress responsiveness under hypoxia. "Spanish Journal of Agricultural Research", v. 16 (n. 1); pp. 1-7. ISSN 2171-9292. https://doi.org/10.5424/sjar/2018161-11698.

Description

Title: Effect of spirulina (Arthrospira platensis) supplementation on tilapia (Oreochromis niloticus) growth and stress responsiveness under hypoxia
Author/s:
  • Plaza Gordo, Ignacio
  • García López, José Luis
  • Villarroel Robinson, Morris Ricardo
Item Type: Article
Título de Revista/Publicación: Spanish Journal of Agricultural Research
Date: 2018
ISSN: 2171-9292
Volume: 16
Subjects:
Freetext Keywords: fish; feed additive; two-choice; behaviour; non-invasive
Faculty: E.T.S. de Ingeniería Agronómica, Alimentaria y de Biosistemas (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Several recent studies have shown that Arthrospira sp. supplementation of feeds has a beneficial effect on fish health and growth, but less is known about its possible effects on stress responsiveness. The present study was designed to evaluate using Arthrospira platensis as a feed supplement for Oreochromis niloticus fry, reared in recirculating aquaculture systems. Two isocaloric and isonitrogenous fishmeal-based diets were prepared with 0% and 1% A. platensis and fed to fry, approximately 10 mg live weight at the beginning of the experimental period (n=16 tanks, 8 tanks per treatment), at a feeding rate of 6% live weight, four meals a day for 50 d. The weight gain per tank, specific growth rate and feed conversion ratio were similar among treatments but A. platensis supplementation significantly increased survival (p<0.05). Stress responsiveness was measured in all fish from 12 tanks using a non-invasive two-choice test. All fish from one home tank (n=6 tanks per treatment), were placed into a shaded tank where oxygen levels were slowly reduced. A doorway was then opened to a second illuminated tank with normal oxygen levels and the number of fish that left the home tank were counted. The fish fed A. platensis stayed significantly (p=0.001) longer in the home tank (30.20 min ± 13.22) than controls (17.35 min ± 8.32), suggesting a lower stress responsiveness and a higher tolerance to hypoxia.

Funding Projects

TypeCodeAcronymLeaderTitle
Madrid Regional GovernmentS2013/ABI-2783INSPIRA1UnspecifiedAplicaciones industriales de la espirulina

More information

Item ID: 54578
DC Identifier: http://oa.upm.es/54578/
OAI Identifier: oai:oa.upm.es:54578
DOI: 10.5424/sjar/2018161-11698
Official URL: http://revistas.inia.es/index.php/sjar/article/view/11698/3886
Deposited by: Memoria Investigacion
Deposited on: 09 Apr 2019 09:27
Last Modified: 09 Apr 2019 09:27
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