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Evaluation of implantation procedures for PIT tagging juvenile Nile tilapia
Baras, E.; Westerloppe, L.; Mélard, Charles et al.
1999In North American Journal of Aquaculture, 61, p. 246-251
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Keywords :
Nile tilapia, Oreochomis niloticus; juvenile (2-14 g ) fish, PIT-tagging; syringe injection, abdominal surgery
Abstract :
[en] We evaluated three alternative procedures for tagging juvenile Nile tilapia Oreochromis niloticus (1,9-13,7 g) with passive integrated transponder (PIT) tags : injection with hypodermic syringe injectors (N=40) and abdominal surgery with or without suturing (N = 55 and 40, respectively). The survival of Nile tilapia tagged with injectors was low ( 10 -50 % at 10 d) and proportional to fish size because of the difficulty of controlling the penetration of the syringe into the intraperitoneal cavity following the piercing of the body wall. Surgically implanted fish had much higher survival rates (78 - 100 % at 10 d). Suturing reduced the risks of tag expulsion and protrusion of the viscera through the open incision within the first 3 d following surgery (10 % risk on the nonsuturated fish).Over the first 3 d after tagging tagged fish showed depressed growth rates (to a greater extend in smaller fish and proportionally greater in sutured fish) but showed normal growth later on.These results demonstrate that surgery is suitable for PIT-tagging small juvenile Nile tilapia, which offers opportunities for studies of individual performance.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Baras, E.
Westerloppe, L.
Mélard, Charles ;  Université de Liège - ULiège > Centre de formation et de recherche en aquaculture (CEFRA)
Philippart, Jean-Claude ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Biologie du comportement - Ethologie et psychologie animale
Bénech, V.
Language :
English
Title :
Evaluation of implantation procedures for PIT tagging juvenile Nile tilapia
Publication date :
1999
Journal title :
North American Journal of Aquaculture
ISSN :
1522-2055
Publisher :
American Fisheries Society, United States
Volume :
61
Pages :
246-251
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 02 December 2010

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