©2023-2035 All Rights Reserved. Online Journal of
Veterinary Research. You may not store these pages in any form except
for your own personal use. All other usage or distribution is illegal under
international copyright treaties. Permission to use any of
these pages in any other way besides the before mentioned must be gained in
writing from the publisher. This article is exclusively copyrighted in
its entirety to onlinejournals@gmail.com publications..
This article may be copied once but may not be, reproduced or
re-transmitted without the express permission of the editors. Linking:
To link to this page or any pages linking to this page you must link directly
to this page only here rather than put up your own page.
OJVRTM
Online Journal of Veterinary
Research©
(Including Medical and Laboratory Research)
Established 1994
ISSN 1328-925X
Volume 29 (5): 251-258, 2025.
Lidocaine anesthesia of Oreochromis
niloticus tilapia
Abbas HHH,
Abdel-Gawad, AS, Akkr, AA
ABSTRACT
Abbas HHH, Abdel-Gawad, AS, Akkr, AA. Lidocaine
anesthesia of Oreochromis niloticus
tilapia, Onl J Vet Res., 29 (5) : 251-258, 2025. We determined 5, 10, 20, 40 min and 24, 48, 72
and 96h LC50 for 40, 60, 80 and 100 mg/l lidocaine in Oreochromis niloticus tilapia.
These levels were effective for rapid anesthesia with 100% survival. 40 mg/l
lidocaine induced loss of equilibrium in Nile tilapia within 20 min with 100%
survival. Fish were observed 2 weeks after exposure to record effects of lidocaine. We identified 5 stages
of anesthesia and 3 for recovery. Lidocaine was considered effective if stage
3b anesthesia occurred
by 5, 10, 20 or 40 min with 100% survival. Safety index was
determined for 5, 10, 20 and 40 min. exposures to lidocaine with = LC50/EC50 ; EC50 being levels that induced
stage 3b anesthesia in 50% of specimens.
Key words: Nile tilapia, anesthesia, toxicity,
efficacy.
FULL-TEXT (SUBSCRIBE OR PURCHASE TITLE)