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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.
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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.
DOI
10.1016/0044-8486(91)90080-Q
Subject
Fecundity; Sex hormones; induced ovulation ASFA; hatching ASFA; spawning ASFA; Siganus guttatus
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  • AQD Journal Articles [1155]

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