This study was conducted to evaluate the potential of sweet potato Ipomoea bata-tas powder (IbSPP), hot-water extracts (IbSPHWE) and crude ethanolic (IbSPCEE) as growth pro-moter immunoenhancer for tilapia cultured in hapa nets. Fish were divided ran-domly into four Treatments: T1 (control group) fed a practical diet (PD) while T2, T3 T4 PD + IbSP (P), extract (HWE), Crude Ethanol Extracts (CCE...

Fish side streams are an environmental and economic problem. In this work, pulsed electric fields (PEF) extraction was optimized used as a new method for their valorization. Sea bass head, skin, viscera, backbone were used. PEF technology (123–300 kJ/kg, 1–3 kV/cm) improved the of proteins antioxidant compounds from head but not successful viscera. SDS-PAGE showed that protein molecular weight ...

Fish in aquaculture systems are subject to several stressors that inhibit the immune response and potentiate development of disease increased mortality. The inclusion additives fish diet, namely seaweeds or their extracts, natural sources bioactive compounds can be an important tool for promoting health well-being these animals. present study aims at sustainable effective methodologies extracti...

The effect of adding 0.05% natural herb extracts obtained from rosemary (Rosmarinus officinalis), thyme (Thymbra spicata), and basil (Ocimum basilicum L.) on mackerel balls during 10 months frozen storage (-18oC) were investigated concerning sensory (raw cooked), biochemical (PV- peroxide value, FFA- free fatty acids, TVB-N -total volatile basic nitrogen, TBA- thiobarbituric acid pH) microbiolo...

Contact activities of Piper guineense (Schum and Thonn) Eugenia aromaticum (L). (Merril Perryl) extracts in the control Dermestes maculatus larvae infesting stored fish (Clarias gariepinus) were investigated under laboratory condition (28 ±3°C 65±5% RH). The tested by application 2.0 µL each to ten third instars using micro pipette at a concentration 6.00, 10.00 20.00% p...

This study was conducted to evaluate the effects of herbal extracts on quality striped catfish (Pangasianodon hypophthalmus) fillets throughout storage period. Quality changes during ice were studied after dip treatments in aqueous solutions ethanolic extract Phyllanthus amarus (0.02% and 0.04%, w/v) or Euphorbia hirta (0.06% 0.02%, w/v). The control (dipped tap water) treated fish samples anal...

OBJECTIVES The leaf and bark of Thevetia peruviana (Family: Apocynaceae) plant was administered for 24 h to the freshwater fish Catla catla (Hamilton) to evaluate their piscicidal activity in laboratory and cemented pond condition. MATERIALS AND METHODS AND RESULTS The LC0 values of lef and bark extracts of different solvents (i.e., acetone, diethyl ether, ethyl alcohol, chloroform and carbon...

The parasitic nematode Anisakis simplex occurs in fish stocks in temperate seas. A. simplex contamination of fish products is unsavoury and a health concern considering human infection with live larvae (anisakiasis) and allergic reactions to anisakid proteins in seafood. Protein extracts of A. simplex produce complex band patterns in gel electrophoresis and IgE-immunostaining. In the present st...

Reliable recovery of the 5′ region of the cytochrome c oxidase 1 (COI) gene is critical for the ongoing effort to gather DNA barcodes for all fish species. In this study, we develop and test primer cocktails with a view towards increasing the efficiency of barcode recovery. Specifically, we evaluate the success of polymerase chain reaction amplification and the quality of resultant sequences us...

In this study, the antimicrobial activity of three solvent extracts of consortium (mixed culture) of commercial available probiotic bacteria against eight fish pathogens using well diffusion and disc diffusion assay method. The probiotic bacteria inhibited almost all the fish pathogens tested. All tested strains were significantly inhibited at probability level (P<0.5).Zone of inhibition was hi...