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Induced spawning of rabbitfish, Siganus guttatus (Bloch) using human chorionic gonadotropin (HCG)

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Date
1991
Author
Ayson, Felix G.
Page views
1,872
Subject
fecundity ASFA
sex hormones ASFA
induced ovulation ASFA
hatching ASFA
spawning ASFA
Siganus guttatus AGROVOC
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Abstract
A positive spawning response of rabbitfish females to two injections of HCG at 2 I.U./g BW given 24 h apart was observed. The latency period after hormone injection was inversely related to the initial oocyte size. Minimum initial oocyte size required for spawning without hormone injection was 0.46 mm. HCG induction of spawning was necessary for females with initial oocyte size of ≤0.45 mm. Number of eggs spawned (424000), fertilization rate (96%), and hatching rate (59%) did not differ from those of naturally spawned fish.
URI
http://hdl.handle.net/10862/1227
Suggested Citation
Ayson, F. G. (1991). Induced spawning of rabbitfish, Siganus guttatus (Bloch) using human chorionic gonadotropin (HCG). Aquaculture, 95(1-2), 133-137. https://doi.org/10.1016/0044-8486(91)90080-Q 
DOI
10.1016/0044-8486(91)90080-Q
Type
Article
ISSN
0044-8486
Collections
  • Journal Articles [1155]


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