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Publication
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| Title of Article |
Sex Maturation Induction for Snakeskin Gourami(Trichopodus pectoralis) during Off-Season Spawning by a Long-Photoperiod and a High Water Temperature Manipulation |
| Date of Acceptance |
7 October 2020 |
| Journal |
| Title of Journal |
Bioscience Research |
| Standard |
ISI |
| Institute of Journal |
Innovative Scientific Information and Services network |
| ISBN/ISSN |
2218-3973 |
| Volume |
17 |
| Issue |
4 |
| Month |
Oct.-Dec. |
| Year of Publication |
2020 |
| Page |
4061-4070 |
| Abstract |
The present study was carried out to induce a gonadal maturation of snakeskin gourami (Trichopodus pectoralis) by a long-photoperiod and a high water temperature manipulation during an off-season spawning. A natural photoperiod and ambient water temperature conditions (NC; 11.5L:12.5D, 24.8±0.3oC) was compared with an artificial long-photoperiod and a high water temperature (ALP+AT; 18L:6D, 28.4±0.1oC) in a 60 days experimental period (5 January to 20 March 2017). Plasma 17βestradiol (E2), gonado-somatic index (GSI), and percentage of the final oocyte maturation (FOM) from the ALP+AT were significantly higher than that of the NC on day 30th and day 60th after exposure. GSI (10.26±0.36%) obtained from this study is almost the same value with a reported GSI of snakeskin gourami females in the spawning season (June to October). A full oocyte maturation (FOM) was observed at 34.7±5.3% from fish exposed to ALP+AT, but it was not detected in the NC group. After the 60 days exposure, only fishes exposed to ALP+AT were successfully induced by Buserelin acetate (30 µg•kg-1) combined with Domperidone (10 mg•kg-1) to spawn and they were consequently fertilized rendering 1,442±338 hatched embryos•spawner-1. |
| Keyword |
Ovary, Photoperiod, Reproduction, Snakeskin gourami, Temperature |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
true |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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