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dc.contributor.author
Chalde, Tomás  
dc.contributor.author
Garriz, Angela  
dc.contributor.author
Sanches, Eduardo A.  
dc.contributor.author
Miranda, Leandro Andres  
dc.date.available
2016-08-01T20:50:08Z  
dc.date.issued
2016-08  
dc.identifier.citation
Chalde, Tomás; Garriz, Angela; Sanches, Eduardo A.; Miranda, Leandro Andres; Influence of pejerrey Odontesthes bonariensis (Valenciennes, 1835) broodstock age on gamete quality, reproductive performance and plasma sex steroid levels during the spawning season; Wiley; Aquaculture Research; 47; 3; 8-2016; 1-14  
dc.identifier.issn
1355-557X  
dc.identifier.uri
http://hdl.handle.net/11336/6859  
dc.description.abstract
This study evaluated the effect of pejerrey Odontesthes bonariensis (Valenciennes, 1835) broodstock age on gamete and spawning quality and its relationship with sex steroid plasma levels. Sperm was analysed using a computer-assisted sperm analysis CASA) developed for pejerrey. Semen samples were taken from all fish from mid age groups (5- and 7-year fish), but it was not possible to obtain stripped semen samples from all fish of younger (3-year) or older (10-year) groups. The highest relative sperm weight and sperm concentration were recorded in 5- and 7-year groups respectively, while viability was not different between age groups. It was not possible to identify an effect of age on sperm quality by CASA. Nonviable spawned eggs were obtained in the 3-year group and, the relative fecundity and the relative number of fertilized eggs decreased with age in other groups. Fertilization and hatching rates showed the highest values in the 10-year group. However, the estimated number of hatched larvae was similar in 5-, 7- and 10-year fish. A clear effect of age on 11 ketotestosterone (11-KT) and estradiol (E2) levels was identified, with the highest values in the 5- and 7-year groups. These results might be related to the onset of puberty in the 3- year group and ageing in the 10-year group. Considering that the estimated number of larvae obtained was similar among age groups, the results of this study suggest that broodstock maintenancecost could be reduced by using mid-age fish rather than older fish in pejerrey hatcheries.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Wiley  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Ageing  
dc.subject
Computer-Assisted Sperm Analysis  
dc.subject
Gamete Quality  
dc.subject
Sex Steroids  
dc.subject
Puberty  
dc.subject.classification
Zoología, Ornitología, Entomología, Etología  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Influence of pejerrey Odontesthes bonariensis (Valenciennes, 1835) broodstock age on gamete quality, reproductive performance and plasma sex steroid levels during the spawning season  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2016-08-01T18:17:16Z  
dc.journal.volume
47  
dc.journal.number
3  
dc.journal.pagination
1-14  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
Londres  
dc.description.fil
Fil: Chalde, Tomás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Biotecnológicas - Instituto Tecnológico Chascomús. Instituto de Investigaciones Biotecnológicas (sede Chascomús); Argentina  
dc.description.fil
Fil: Garriz, Angela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Biotecnológicas - Instituto Tecnológico Chascomús. Instituto de Investigaciones Biotecnológicas (sede Chascomús); Argentina  
dc.description.fil
Fil: Sanches, Eduardo A.. Universidade de Sao Paulo; Brasil  
dc.description.fil
Fil: Miranda, Leandro Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Biotecnológicas - Instituto Tecnológico Chascomús. Instituto de Investigaciones Biotecnológicas (sede Chascomús); Argentina  
dc.journal.title
Aquaculture Research  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/are.12555/abstract  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/hdl/10.1111/are.12555  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/are.12555