Relationship between sperm quality parameters and fatty acid composition of the muscle, liver and testis of European eel

• Published in: Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology
• Main Authors: Baeza Ariño, Rosa, Mazzeo, Ilaria, Vilchez Olivencia, Maria Carmen, Gallego Albiach, Victor, Peñaranda, D.S., Pérez Igualada, Luz María, Asturiano Nemesio, Juan Francisco
• Other Authors: Universitat Politècnica de València. Instituto de Ciencia y Tecnología Animal - Institut de Ciència i Tecnologia Animal, Universitat Politècnica de València. Departamento de Ciencia Animal - Departament de Ciència Animal, European Commission, Ministerio de Ciencia e Innovación, Generalitat Valenciana, Universitat Politècnica de València, European Cooperation in Science and Technology
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2015
• Subjects: Sperm motility; Sperm velocity; PUFA; Broodstock diet; Spermatogenesis; BIOLOGIA ANIMAL; PRODUCCION ANIMAL; Anguilla anguilla; European eel
• Online Access: http://hdl.handle.net/10251/68517; https://doi.org/10.1016/j.cbpa.2014.11.022

[EN] This study looks at the correlations that fatty acids have with different tissues in the European eel (Anguilla anguilla L.) during hormonally-induced sexual maturation, with different sperm quality parameters. In order to evaluate the different dynamics of the use of fatty acids, a categorization of the results from each sperm quality parameter (volume, concentration, motility and velocity) was performed. Low and moderate correlations were observed between muscle tissue and some sperm quality parameters but no high correlations were found. Eicosapentaenoic add (20:5n3, EPA) in the liver seems to have a role in determining the volume of sperm produced. This can be explained by the fact that EPA is a major requirement in the early phases of sperm production (probably as a component of the spermatozoal membrane). In addition, the levels of alpha-linolenic acid (18:3-n3, ALA) and linoleic acid (18:2-n6, LA) in the liver decreased when sperm motility increased. In all the tissues, a negative correlation was observed between arachidonic acid (20:4n-6, ARA) and the different sperm velocity parameters. The fact that an increase in the consumption of ARA coincides with an increase in the speed of spermatozoa, highlights the important role that this fatty acid plays not only in sperm production, but also in sperm velocity. All this information could prove useful in the development of suitable broodstock diets to improve sperm quality and subsequently, the larval development of this species. (C) 2014 Elsevier Inc All rights reserved. This work was funded by the European Community's Seventh Framework Programme under the Theme 2 "Food, Agriculture and Fisheries, and Biotechnology", grant agreement no. 245257 (PRO-EEL), and COST Office (Food and Agriculture COST Action FA1205: AQUAGAMETE). Victor Gallego, Ilaria Mazzeo and M. Carmen Vilchez had predoctoral grants from the Spanish Ministry of Science and Innovation (MICINN), Generalitat Valenciana, and UPV PAID Programme (2011-S2-02-6521), respectively. David S. ...