Preliminary trials on the optimization of hormone dosages for induced breeding of Philippine silver perch, Leiopotherapon plumbeus

The silver perch Leiopotherapon plumbeus, locally known as ayungin, is an endemic freshwater fish that is commercially valuable as it commands a high price in the local market. Due to excessive fishing and other potential causes such as predation by invasive alien species, the local L. plumbeus stoc...

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Main Authors: Javier, Mark Archei O., Aya, Frolan A., Eguia, Maria Rowena R.
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Published: Animo Repository 2014
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Online Access:https://animorepository.dlsu.edu.ph/faculty_research/11436
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spelling oai:animorepository.dlsu.edu.ph:faculty_research-116722024-01-15T08:25:28Z Preliminary trials on the optimization of hormone dosages for induced breeding of Philippine silver perch, Leiopotherapon plumbeus Javier, Mark Archei O. Aya, Frolan A. Eguia, Maria Rowena R. The silver perch Leiopotherapon plumbeus, locally known as ayungin, is an endemic freshwater fish that is commercially valuable as it commands a high price in the local market. Due to excessive fishing and other potential causes such as predation by invasive alien species, the local L. plumbeus stocks are observed to be depleting hence there is a need for an induced breeding protocol to propagate silver perch and conserve what remains of the resource. In this study, 30 females (total length or TL: 109.4 ± 12.2 mm; total body weight or TBW: 20.3 ± 6.1 g) and 60 males (TL: 97.1 ± 11.6 mm; TBW: 13.4 ± 5.5 g) were injected once intra-muscularly with different doses of hormones. Various dosages of human chorionic gonadotropin (HCG), luteinizing hormone releasing hormone analog (LHRHa) and salmon gonadotropin releasing hormone (sGnRH) were evaluated to identify the most effective dosage and hormone that resulted to high ovulation, fertilization and hatching rate. For the hormone sGnRH, 20, 30 and 40 μg/kg body weight (BW) and 1, 2 and 3 μg/kg BW for LHRHa were the dosages used in the experiment. The dosage used for HCG is 50 IU/g BW and served as the control. The findings of the experiment determined that the use of 20 μg/kg body weight of sGnRH resulted to high ovulation, fertilization and hatching rates. The result of the experiment would provide an efficient protocol for the local fishermen so they can produce, on demand, a large supply of this high quality fish species. 2014-01-01T08:00:00Z text https://animorepository.dlsu.edu.ph/faculty_research/11436 Faculty Research Work Animo Repository Teraponidae—Induced spawning—Philippines Biology
institution De La Salle University
building De La Salle University Library
continent Asia
country Philippines
Philippines
content_provider De La Salle University Library
collection DLSU Institutional Repository
topic Teraponidae—Induced spawning—Philippines
Biology
spellingShingle Teraponidae—Induced spawning—Philippines
Biology
Javier, Mark Archei O.
Aya, Frolan A.
Eguia, Maria Rowena R.
Preliminary trials on the optimization of hormone dosages for induced breeding of Philippine silver perch, Leiopotherapon plumbeus
description The silver perch Leiopotherapon plumbeus, locally known as ayungin, is an endemic freshwater fish that is commercially valuable as it commands a high price in the local market. Due to excessive fishing and other potential causes such as predation by invasive alien species, the local L. plumbeus stocks are observed to be depleting hence there is a need for an induced breeding protocol to propagate silver perch and conserve what remains of the resource. In this study, 30 females (total length or TL: 109.4 ± 12.2 mm; total body weight or TBW: 20.3 ± 6.1 g) and 60 males (TL: 97.1 ± 11.6 mm; TBW: 13.4 ± 5.5 g) were injected once intra-muscularly with different doses of hormones. Various dosages of human chorionic gonadotropin (HCG), luteinizing hormone releasing hormone analog (LHRHa) and salmon gonadotropin releasing hormone (sGnRH) were evaluated to identify the most effective dosage and hormone that resulted to high ovulation, fertilization and hatching rate. For the hormone sGnRH, 20, 30 and 40 μg/kg body weight (BW) and 1, 2 and 3 μg/kg BW for LHRHa were the dosages used in the experiment. The dosage used for HCG is 50 IU/g BW and served as the control. The findings of the experiment determined that the use of 20 μg/kg body weight of sGnRH resulted to high ovulation, fertilization and hatching rates. The result of the experiment would provide an efficient protocol for the local fishermen so they can produce, on demand, a large supply of this high quality fish species.
format text
author Javier, Mark Archei O.
Aya, Frolan A.
Eguia, Maria Rowena R.
author_facet Javier, Mark Archei O.
Aya, Frolan A.
Eguia, Maria Rowena R.
author_sort Javier, Mark Archei O.
title Preliminary trials on the optimization of hormone dosages for induced breeding of Philippine silver perch, Leiopotherapon plumbeus
title_short Preliminary trials on the optimization of hormone dosages for induced breeding of Philippine silver perch, Leiopotherapon plumbeus
title_full Preliminary trials on the optimization of hormone dosages for induced breeding of Philippine silver perch, Leiopotherapon plumbeus
title_fullStr Preliminary trials on the optimization of hormone dosages for induced breeding of Philippine silver perch, Leiopotherapon plumbeus
title_full_unstemmed Preliminary trials on the optimization of hormone dosages for induced breeding of Philippine silver perch, Leiopotherapon plumbeus
title_sort preliminary trials on the optimization of hormone dosages for induced breeding of philippine silver perch, leiopotherapon plumbeus
publisher Animo Repository
publishDate 2014
url https://animorepository.dlsu.edu.ph/faculty_research/11436
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