Constraints on seedstock production in eighth generation domesticated Penaeus monodon broodstock

Improving the seedstock production of domesticated broodstock remains a high priority for the black tiger shrimp, Penaeus monodon, farming industry in Australia and other shrimp farming regions. In this study, wild-caught (W) broodstock were reciprocally crossed with eighth generation (domesticated-...

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Detalles Bibliográficos
Autores: Arnold S.J., Coman G.J., Emerenciano M.*
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:Brasil
Institución:Universidade do Estado de Santa Catarina (UDESC)
Repositorio:Repositório Institucional da Udesc
Idioma:inglés
OAI Identifier:oai:repositorio.udesc.br:UDESC/8783
Acceso en línea:https://repositorio.udesc.br/handle/UDESC/8783
Access Level:acceso abierto
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spelling Constraints on seedstock production in eighth generation domesticated Penaeus monodon broodstockImproving the seedstock production of domesticated broodstock remains a high priority for the black tiger shrimp, Penaeus monodon, farming industry in Australia and other shrimp farming regions. In this study, wild-caught (W) broodstock were reciprocally crossed with eighth generation (domesticated-selected) broodstock (G8) and the reproductive performance was evaluated to identify the key parameters and gender influences currently constraining seedstock production from domesticated broodstock. Nauplii production was significantly lower in G8 than W broodstock and differences in nauplii production were found to be more influenced by the female than the male origin of the broodstock. The main constraints on nauplii production in G8 females were inferior egg hatch rates and egg production. The percentage of eggs that hatched was 44% lower in G8 females (24.3%) than W females (43.7%). The total number of eggs per spawning was 25% lower in G8 females (413,000) than W females (552,000) and the relative number of eggs spawned per gram female body weight was 37% lower in G8 females (2476) than W females (3909). In addition, a significantly higher percentage of the W females (70.8. ±. 5.7%) matured to ovary stage 4 than G8 females (2.1. ±. 2.1%). But there was no difference in the percentage of females that developed stage 3 ovaries or the percentage of females that spawned. There was no difference in the total number of sperm per spermatophore or sperm quality (based on acrosome reaction) between W and G8 males, which may explain the lack of any male effect on fertilization. Our results suggest that female broodstock quality may often explain the low nauplii output of domesticated broodstock. © 2013 Elsevier B.V.2024-12-06T14:30:45Z2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlep. 95 - 1000044-848610.1016/j.aquaculture.2013.06.023https://repositorio.udesc.br/handle/UDESC/8783Aquaculture410-411engreponame:Repositório Institucional da Udescinstname:Universidade do Estado de Santa Catarina (UDESC)instacron:UDESCinfo:eu-repo/semantics/openAccessArnold S.J.Coman G.J.Emerenciano M.*2024-12-07T20:58:46Zoai:repositorio.udesc.br:UDESC/8783Biblioteca Digital de Teses e Dissertaçõeshttps://pergamumweb.udesc.br/biblioteca/index.phpPRIhttps://repositorio-api.udesc.br/server/oai/requestri@udesc.bropendoar:63912024-12-07T20:58:46Repositório Institucional da Udesc - Universidade do Estado de Santa Catarina (UDESC)false
dc.title.none.fl_str_mv Constraints on seedstock production in eighth generation domesticated Penaeus monodon broodstock
title Constraints on seedstock production in eighth generation domesticated Penaeus monodon broodstock
spellingShingle Constraints on seedstock production in eighth generation domesticated Penaeus monodon broodstock
Arnold S.J.
title_short Constraints on seedstock production in eighth generation domesticated Penaeus monodon broodstock
title_full Constraints on seedstock production in eighth generation domesticated Penaeus monodon broodstock
title_fullStr Constraints on seedstock production in eighth generation domesticated Penaeus monodon broodstock
title_full_unstemmed Constraints on seedstock production in eighth generation domesticated Penaeus monodon broodstock
title_sort Constraints on seedstock production in eighth generation domesticated Penaeus monodon broodstock
dc.creator.none.fl_str_mv Arnold S.J.
Coman G.J.
Emerenciano M.*
author Arnold S.J.
author_facet Arnold S.J.
Coman G.J.
Emerenciano M.*
author_role author
author2 Coman G.J.
Emerenciano M.*
author2_role author
author
description Improving the seedstock production of domesticated broodstock remains a high priority for the black tiger shrimp, Penaeus monodon, farming industry in Australia and other shrimp farming regions. In this study, wild-caught (W) broodstock were reciprocally crossed with eighth generation (domesticated-selected) broodstock (G8) and the reproductive performance was evaluated to identify the key parameters and gender influences currently constraining seedstock production from domesticated broodstock. Nauplii production was significantly lower in G8 than W broodstock and differences in nauplii production were found to be more influenced by the female than the male origin of the broodstock. The main constraints on nauplii production in G8 females were inferior egg hatch rates and egg production. The percentage of eggs that hatched was 44% lower in G8 females (24.3%) than W females (43.7%). The total number of eggs per spawning was 25% lower in G8 females (413,000) than W females (552,000) and the relative number of eggs spawned per gram female body weight was 37% lower in G8 females (2476) than W females (3909). In addition, a significantly higher percentage of the W females (70.8. ±. 5.7%) matured to ovary stage 4 than G8 females (2.1. ±. 2.1%). But there was no difference in the percentage of females that developed stage 3 ovaries or the percentage of females that spawned. There was no difference in the total number of sperm per spermatophore or sperm quality (based on acrosome reaction) between W and G8 males, which may explain the lack of any male effect on fertilization. Our results suggest that female broodstock quality may often explain the low nauplii output of domesticated broodstock. © 2013 Elsevier B.V.
publishDate 2013
dc.date.none.fl_str_mv 2013
2024-12-06T14:30:45Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv 0044-8486
10.1016/j.aquaculture.2013.06.023
https://repositorio.udesc.br/handle/UDESC/8783
identifier_str_mv 0044-8486
10.1016/j.aquaculture.2013.06.023
url https://repositorio.udesc.br/handle/UDESC/8783
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Aquaculture
410-411
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv p. 95 - 100
dc.source.none.fl_str_mv reponame:Repositório Institucional da Udesc
instname:Universidade do Estado de Santa Catarina (UDESC)
instacron:UDESC
instname_str Universidade do Estado de Santa Catarina (UDESC)
instacron_str UDESC
institution UDESC
reponame_str Repositório Institucional da Udesc
collection Repositório Institucional da Udesc
repository.name.fl_str_mv Repositório Institucional da Udesc - Universidade do Estado de Santa Catarina (UDESC)
repository.mail.fl_str_mv ri@udesc.br
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