Compartir
Título
Natural feed after weaning improves the reproductive status of "Solea senegalensis" breeders
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Aquaculture
Cita Bibliográfica
Martín, I., Fernández Riesco, M., Chaves Pozo, E., Rodríguez, C., Martínez Vázquez, J.M., Robles Rodríguez, V., Chereguini, M. del O., Rasines, I. (2021). Natural feed after weaning improves the reproductive status of "Solea senegalensis" breeders. Aquaculture. 530. https://doi.org/10.1016/j.aquaculture.2020.735740
Editorial
Elsevier
Fecha
2021
ISSN
0044-8486
Resumen
[EN] The aim of this study was to evaluate the effect of long term natural feeding in the subsequent reproductive
status of 4 years old cultured Solea senegalensis, and to determine if the potential changes were structural or
feeding dependent. To this aim, two different feeding regimes were used from one year after weaning and during
the following 3 years; 1) a commercial dry food diet and 2) a natural feeding regime. After this period, the
proportion of fluent males and the evolution of maturity stages of females over a breeding season were studied. A
complete sperm quality analysis assessment was carried out, including individual volumes, motility, density and
curvilinear, rectilinear and mean velocities of spermatozoa. Moreover, viability and apoptosis indexes were
analyzed as indicator of molecular sperm membrane integrity. Additionally, a morphological characterization of
the testes during the spawning season was conducted. Finally, both groups were fed with the same commercial
pellets during one year to evaluate the effect of the diet of previous years on sperm quality. The results of this
study showed how feeding can improve not only sperm quality and quantity, but also the proportion of fluent
males and females in advanced maturity stages. All the sperm quality parameters resulted significantly higher in
the group fed with a natural diet. Moreover, the number of apoptotic cells was significantly higher in the group
fed with a commercial diet. According to the morphological features of the testes, the animals fed with a natural
diet presented more basal position, less protuberances and irregular edges when compared with the animals fed
with commercial diet. Interestingly, the progression of the spermatogenesis determined by the proportion of
germ cells and the production of spermatozoa determined by the wider of the ducts system was also significantly
larger in the natural diet group.
After the standardization of the diets, mean volume per male and production of total motile cells were significantly
higher in the group that was previously fed a natural diet, confirming structural improvements.
Materia
Palabras clave
Peer review
SI
ID proyecto
- info:eu-repo/grantAgreement/MINECO/ Programa Estatal de I+D+I Orientada a los Retos de la Sociedad/ AGL2015-68330-C2-1-R/ES/ MECANISMOS MOLECULARES SUBYACENTES AL FALLO REPRODUCTIVO EN SOLEA SENEGALENSIS: DESARROLLO DE NUEVAS ESTRATEGIAS Y TRATAMIENTOS PARA SOLVENTAR LA DISFUNCION REPRODUTIVA EN F1
URI
DOI
Aparece en las colecciones
- Artículos [5048]
Ficheros en el ítem
Tamaño:
1.312
xmlui.dri2xhtml.METS-1.0.size-megabytes
Formato:
Adobe PDF