an experiment was conducted to evaluate the effects of biogen probiotic additives on growth performance of common carp, cyprinus carpio. four practical diets containing 0 (control) , 0.1, 0.2 and 0.3 % biogen probiotic were used to feed fish. seventy-two juvenile common carp (65 ? 3.5g) were randomly distributed between 12 fiberglass tanks of 500 l capacity. during 60 days of feeding trial, the...

objective(s): our present study sought to evaluate hepatoprotective and antioxidant effects of methanol extract of azolla microphylla phytochemically synthesized gold nanoparticles (gnap) in acetaminophen (apap) - induced hepatotoxicity of fresh water common carp fish.materials and methods: gnap were prepared by green synthesis method using methanol extract of azolla microphylla.  twenty four f...

this study was conducted to determine the effects of mannan oligosaccharide (mos) on growth, some immune responses and gut lactic acid bacteria of common carp. four experimental diets containing 0%, 0.05%, 0.10% and 0.20% mos were prepared. each diet was randomly allocated to triplicate groups of fish with initial average weight of approximately 14 g. after eight weeks, survival rate was high i...

a 6 week study was conducted to assess the effects of wood betony (wb), stachys lavandulifolia extract on growth performance, hematological and biochemical parameters of common carp, cyprinus carpio. different levels of the wb extract (0, 2, 4 and 8 % weight per weight, w/w, 0wb, 2wb, 4wb and 8wb) in the diet were used. the results showed that final weight and weight gain were significantly imp...

the studies of parasitology was performed on freshwater in farm ponds in isfahan province during the years of 2006- 2008 and in total were fished 150 fish from farm ponds of freshwater fish and dual purpose of agriculture of three regions in isfahan. the fish were 65 cyprinus carpio, 40 hypophthalmichthys molitrix and 45 ctenopharyngodon idella. the samples were taken to laboratory alive and af...

The aim of this study was to evaluate pharmacokinetic profiles of florfenicol after a single dose of intravenous (5.00 mg kg-1 body weight) and oral (40.00 mg kg-1 body weight) administrations in common carp (Cyprinus carpio). The residue depletion of florfenicol was also investigated after oral administration (10.00 mg kg-1 body weight) and bath treatment (5.00 mg L-1) for 10 consecutive days....

Trophont stages of the c~l ia te fish parasite Ichthyophtl~jrius n~ult i f i l i is were Incubated alive in vitro in serum from immune carp Cyprinus carpi0 and subsequently examined immunoh~stoloyically for bound ant~body. Parasites became immobilized in immune serum and were enveloped by gelatinous mucus-llke material. Carp antibody could not be detected bound to cilia membranes (the major sur...

Dispersed cells from sexually immature carp (footlings) pituitaries were exposed to estradiol (E2) or testosterone (T) (both at 3 × 10 –8 M) in the presence of opioid receptor antagonist naltrexone (10–8 or 10–6 M) and/or agonist – morphine (10–8 or 10–6 M). Naltrexone alone at 10–6 M increased the LH level as compared with the control. Morphine (10–8 or 10–6 M), T and E2 had no influence on LH...