Fish egg quality is strongly related with the ability of to be fertilized and develop a normal embryo good survival lack abnormalities. Large variations in spawning quantity or impact directly competitiveness sustainability hatcheries, which create an overly large broodstock order satisfy on-growing companies’ demand for undeformed fry. The present study reports, first time relation gilthead se...

This study was carried out to investigate the effects of increasing levels propolis addition as a feed additive in seabream (Sparus aurata) diets on hematological parameters and fish fatty acids profile. Seabream with an average weight 12.04 ± 0.01 g were fed 0 (control), by 1.25, 2.5, 5, 10, 20 g/kg (abbreviated P1.25; P2.5; P5; P10 P20 respectively) supplemented for 10 weeks. The experiment c...

Abstract This work addresses the evaluation in vitro of different marine ( Dunaliella salina REC-0214B and Microchloropsis gaditana REC-0251B) freshwater Anabaena sp. BEA-0300B, Arthrospira platensis BEA-0007B, Chlorella vulgaris BEA-0753B, Spirogyra BEA-0666B) microalgae cyanobacteria as potential dietary ingredients aquafeeds. For this purpose, total protein content, amino acid composition, p...

In marine fish, high epithelial intestinal HCO₃− secretion generates luminal carbonate precipitates of divalent cations that play a key role in water and ion homeostasis. The present study was designed to expose the putative role for calcium and the calcium-sensing receptor (CaSR) in the regulation of HCO₃− secretion in the intestine of the sea bream (Sparus aurata L.). Effects on t...

Aquaporins (AQPs) are specific transmembrane water channels with an important function in water homeostasis. In terrestrial vertebrates, AQP2 function is regulated by vasopressin (AVP) to accomplish key functions in osmoregulation. The endocrine control of aquaporin function in teleosts remains little studied. Therefore, in this study we investigated the regulatory role of vasotocin (AVTR) and ...