Effects of exogenous melatonin on the reproductive activities of Nile tilapia, Oreochromis niloticus SCIE SCOPUS

Cited 1 time in WEB OF SCIENCE Cited 2 time in Scopus
Title
Effects of exogenous melatonin on the reproductive activities of Nile tilapia, Oreochromis niloticus
Author(s)
Kim, Jung-Hyun; Park, Jin Woo; Kwon, Joon Yeong
Publication Year
2018
Abstract
Gonadal development and sexual maturation of fish are often related to photic conditions. We attempted to utilise the direct application of melatonin to elicit similar effects in the absence of photoperiod manipulation. We found no significant differences in somatic growth between melatonin-treated groups and controls, indicating that melatonin administration did not negatively affect the growth of the experimental fish. Treatment with low-dose melatonin (0.3 mg/kg BW) resulted in a decrease in spawning frequency, number of spawned eggs and gonadosomatic index in female tilapia. In male tilapia, low-dose melatonin was associated with a decrease in sperm count, spermatocrit and spermatozoa activity index, implying that exogenous melatonin might mimic the effects of shortened light photoperiod, which suppresses reproductive activity in this species. These results suggest the possibility that an optimised dose of melatonin treatment could be used to control the spawning behaviour of this species.
ISSN
0929-1016
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1072
DOI
10.1080/09291016.2017.1366715
Bibliographic Citation
BIOLOGICAL RHYTHM RESEARCH, v.49, no.3, pp.392 - 404, 2018
Publisher
TAYLOR & FRANCIS LTD
Subject
MALE MASU SALMON; ATLANTIC SALMON; SEED PRODUCTION; SOMATIC GROWTH; LHRH ANALOG; SALAR L; PHOTOPERIOD; L.; MATURATION; LIGHT
Keywords
Melatonin; reproduction; photoperiod; Nile tilapia
Type
Article
Language
English
Document Type
Article
Publisher
TAYLOR & FRANCIS LTD
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