Collections de documents électroniques
RECHERCHER

Impact of arachidonic acid enrichment of live rotifer prey on bacterial communities in rotifer and larval fish cultures

Téléchargements

Téléchargements par mois depuis la dernière année

Plus de statistiques...

Seychelles, Laurent H., Doiron, Kim, Audet, Céline ORCID logoORCID: https://orcid.org/0000-0003-3366-210X, Tremblay, Réjean ORCID logoORCID: https://orcid.org/0000-0003-2590-8915, Pernet, Fabrice et Lemarchand, Karine (2013). Impact of arachidonic acid enrichment of live rotifer prey on bacterial communities in rotifer and larval fish cultures. Canadian Journal of Microbiology, 59 (3). pp. 189-196.

[thumbnail of Laurent_H._Seychelles_et_al_janvier2013.pdf]
Prévisualisation
PDF
Télécharger (912kB) | Prévisualisation

Résumé

Rotifers (Brachionus plicatilis), commonly used at first feeding in commercial fish hatcheries, carry a large bacteria load. Because they are relatively poor in essential fatty acids, it is common practice to enrich them with fatty acids, including arachidonic acid (AA). This study aims to determine whether prey enrichment with AA may act as a prebiotic and modify the microbial community composition either in AA-enriched rotifer cultures or in larval-rearing water using winter flounder (Pseudopleuronectes americanus) as a larval fish model. AA enrichment modified the bacterial community composition in both the rotifer culture tanks and the larval-rearing tanks. We observed an increase in the number of cultivable bacteria on TCBS (thiosulfate–citrate–bile salts–sucrose) agar, used as a proxy for the abundance of Vibrio sp. The results suggest that AA may also play an indirect role in larval health. -- Keywords : bacterial community ; rotifers ; arachidonic acid enrichment ; Vibrio sp. ; prebiotic.

Type de document : Article
Validation par les pairs : Oui
Version du document déposé : Post-print (version corrigée et acceptée)
Départements et unités départementales : Institut des sciences de la mer de Rimouski (ISMER)
Déposé par : DIUQAR UQAR
Date de dépôt : 08 janv. 2021 15:34
Dernière modification : 05 oct. 2023 15:58
URI : https://semaphore.uqar.ca/id/eprint/1737

Actions (administrateurs uniquement)

Éditer la notice Éditer la notice