Effects of graded levels of arachidonic acid on the reproductive physiology of Senegalese sole (Solea senegalensis): Fatty acid composition, prostaglandins and steroid levels in the blood of broodstock bred in captivity
| Autor: | Alicia Estévez, Evaristo L. Mañanós, Fernando Norambuena, Neil Duncan, Ignacio Carazo, J. Gordon Bell |
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| Rok vydání: | 2013 |
| Předmět: |
Male
medicine.medical_specialty Fish farming medicine.medical_treatment Blood lipids Prostaglandin Arachidonic Acids Broodstock Biology Steroid chemistry.chemical_compound Follicle Endocrinology Internal medicine medicine Animals Testosterone Fish blood Arachidonic Acid Fatty Acids food and beverages biochemical phenomena metabolism and nutrition carbohydrates (lipids) Arachidonic acid chemistry Flatfishes Prostaglandins Female Steroids lipids (amino acids peptides and proteins) Animal Science and Zoology Senegalese sole |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 0016-6480 2005-0011 |
| DOI: | 10.1016/j.ygcen.2013.06.006 |
| Popis: | Previous studies on Senegalese sole (Solea senegalensis) indicated that cultured broodstock (first generation, G1) have lower tissue levels of arachidonic acid (20:4n-6, ARA) than wild counterparts. ARA is metabolized to form prostaglandins (PGs) that are involved in steroid production and follicle maturation in fish. In the present study the effects of different dietary levels of ARA on blood lipid and fatty acid composition, prostaglandin (PGF2α, PGF3α, PGE2 and PGE3) levels and plasmatic steroid levels (11-ketotestosterone, 11-KT, testosterone, T and estradiol, E2) in G1 Senegalese sole were studied. For this purpose, 12 groups of ten fish (1:1 male and female), were fed six diets (each diets was fed to two groups) with different dietary ARA levels over nine months (diets A.=0.7, B.=1.6, C.=2.3, D.=3.2, E.=5.0, F.=6.0% ARA). ARA and CHOL levels in blood showed a significant increase in an ARA dose related manner (P This research was funded by Ministerio de Agricultura, Pesca, Alimentación y Medio Ambiente-JACUMAR project Lenguado and (INIA)-FEDER project RTA2005-00113-00-00. F.N. thanks Agència de Gestió d’Ajuts Universitaris i de Recerca (AGAUR) for the Ph.D. grant that he was awarded. |
| Databáze: | OpenAIRE |
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