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dc.contributor.author
Bertucci, Juan Ignacio  
dc.contributor.author
Blanco, Ayelén Melisa  
dc.contributor.author
Navarro, Juan Carlos  
dc.contributor.author
Unniappan, Suraj  
dc.contributor.author
Canosa, Luis Fabian  
dc.date.available
2023-10-03T12:50:00Z  
dc.date.issued
2022-08  
dc.identifier.citation
Bertucci, Juan Ignacio; Blanco, Ayelén Melisa; Navarro, Juan Carlos; Unniappan, Suraj; Canosa, Luis Fabian; Dietary protein:lipid ratio modulates somatic growth and expression of genes involved in somatic growth, lipid metabolism and food intake in Pejerrey fry (Odontesthes bonariensis); Elsevier Science Inc.; Comparative Biochemistry and Physiology Part A: Molecular and Integrative Physiology; 270; 8-2022; 1-9  
dc.identifier.issn
1095-6433  
dc.identifier.uri
http://hdl.handle.net/11336/213900  
dc.description.abstract
Pejerrey is a freshwater fish from South America with high potential for aquaculture. This study was designed to determine the effects of different dietary protein:lipid ratio on growth rate and the expression of growth, lipid metabolism and feeding-related genes of this species during early developmental stages. Pejerrey fry were fed for 60 days with four experimental diets containing low (400 g Kg−1) or high (500 g Kg−1) protein (LP or HP, respectively) and low (120 g Kg−1) or high (200 g Kg−1) lipid (LL or HL, respectively), in the combinations: LP-LL; LP-HL; HP-LL and HP-HL. Measurements of growth, lipid and fatty acid content of fry, expression of genes from the endocrine axis (gh, ghrs, igfs), fatty acid metabolism (∆6-desaturase), and food intake behavior (nucb2/nesfatin-1) were collected. Fry fed with diets LP-LL and HP-LL showed the highest growth rate and growth hormone (gh) mRNA expression levels. The gene expression of ∆6-desaturase was high in head of fry fed with diet LP-HL. The mRNA expression of nucb2/nesfatin-1 and gh followed the same patterns in head, and the inverse pattern in body. In conclusion, diets with LL ensure a higher growth of pejerrey fry compared to those that contain HL, without altering the final lipid amount nor the fatty acid profile on fry. In LL groups, the expression of genes from the GH-IGF axis is associated with the observed promotion of somatic growth. The expression of nucb2/nesfatin-1 indicates an effect of this peptide not related to food intake regulation, e.g., a negative regulatory role on GH expression, that would warrant future research.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Science Inc.  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/  
dc.subject
GROWTH HORMONE  
dc.subject
INSULIN-LIKE GROWTH FACTOR  
dc.subject
LIPID  
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NUCB2/NESFATIN-1  
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PROTEIN  
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Δ6-DESATURASE  
dc.subject.classification
Otros Tópicos Biológicos  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Dietary protein:lipid ratio modulates somatic growth and expression of genes involved in somatic growth, lipid metabolism and food intake in Pejerrey fry (Odontesthes bonariensis)  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2023-10-03T10:22:59Z  
dc.journal.volume
270  
dc.journal.pagination
1-9  
dc.journal.pais
Estados Unidos  
dc.description.fil
Fil: Bertucci, Juan Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); Argentina  
dc.description.fil
Fil: Blanco, Ayelén Melisa. Universidad de Vigo; España  
dc.description.fil
Fil: Navarro, Juan Carlos. Consejo Superior de Investigaciones Científicas; España  
dc.description.fil
Fil: Unniappan, Suraj. University of Saskatchewan; Canadá  
dc.description.fil
Fil: Canosa, Luis Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); Argentina  
dc.journal.title
Comparative Biochemistry and Physiology Part A: Molecular and Integrative Physiology  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.cbpa.2022.111231