Freshwater fish populations often exist in systems characterized by novel ecological processes resulting from human alteration. Salmonid embedded within coldwater sections of warmwater rivers are spatially constrained habitat availability. Tailwater contend with fluctuating river discharges and density-dependent associated stocking exploitation. sustained through versus natural reproduction may...

Aim of the study: To evaluate hemato-immunological parameters in Palomino trout compared to naturally pigmented rainbow trout.
 Area Fars province (SW Iran).
 Material and methods: Sixty fish both varieties (30 30 pigmented) were sampled from same pond. After blood sampling, hematological parameters, total serum protein immunoglobulin (Ig), phagocytic activity, respiratory burst lysoz...

Based on the concept of nutritional programming in higher vertebrates, we tested whether an acute hyperglucidic stimulus during early life could induce a long-lasting effect on carbohydrate utilization in carnivorous rainbow trout. The trout were fed a hyperglucidic diet (60% dextrin) at two early stages of development: either at first feeding (3 days, stimulus 1) or after yolk absorption (5 da...

The effects of injectable Tunceli garlic oil (Allium tuncelianum) on serum response rainbow trout were examined. Influence intraperitoneal (i.p.) injection administration (TGO) was evaluated some immunological factors trout. Fish weight 40 g i.p. injected TGO at doses 1% and 10%. Serum lysozyme activity, bactericidal myeloperoxidase, protein immunoglobulin levels measured days 3, 7, 14 21 after...

in order to determine of some blood serum biochemical parameters in rainbow trout, blood samples were taken from the caudal vein of 531 apparently healthy rainbow trout cultured in earthen ponds. data was analyzes by regression analysis, pearson correlation coefficient test and fisher's test. the mean values of alp, ast, alt and ldh were 722±320, 337±150, 29±24 and 579±353 u/l and the mean...

The aim of this study was to evaluate the effects of Aloe vera extract (AE) on the immunity responses and hematological parameters in rainbow trout (Oncorhynchus mykiss) fry to develop alternative drug to chemotherapeutics and antibiotics in aquaculture. 1200 rainbow trout (Oncorynchus mykiss) fry weighing 2±0.2 gram were randomly allocated into two treatment groups i...

The hypothesis that circulating cortisol levels influence the outcome of social interactions in rainbow trout was tested. Juvenile rainbow trout Oncorhynchus mykiss were given a single intraperitoneal (i.p.) implant containing either cortisol (110 mg kg(-1) fish), or cortisol plus the glucocorticoid receptor antagonist RU486 (mifepristone; 1100 mg kg(-1) fish), and sampled after 5 days of socia...

Plant-derived protein sources are the most relevant substitutes for fishmeal in aquafeeds. Nevertheless, the effects of plant based diets on the intestinal microbiome especially of juvenile Rainbow trout (Oncorhynchus mykiss) are yet to be fully investigated. The present study demonstrates, based on 16S rDNA bacterial community profiling, that the intestinal microbiome of juvenile Rainbow trout...

The influence of hypoxia upon the heart rate and the rate and amplitude of breathing in the tench has been reported by Randall & Shelton (1963). Satchell (1961) demonstrated that dogfish respond to anoxia by decreasing heart rate, temporarily increasing dorsal aortic blood pressure and increasing the mean and pulse pressure in the ventral aorta. These fish were restrained and anaesthetized. In ...