Contamination of Saprolegnia sp. fungi in edible and ornamental fish is one of the common problems of fish aquaculture ponds and aquariums and has economic losses. The aqueous, methanolic, and hydroalcoholic extracts of Spartium junceum and Melissa officinalis were prepared by maceration and condensed by rotary. Four concentrations of 20, 30, 40 and 50 mg/ml of the extracts were used. The fungu...

In the present study, we investigated biological characteristics and population dynamics of long-spined tripodfish, Pseudotriacanthus strigilifer, in coastal waters of Hormozgan province. A total of 391 fish samples were collected from September 2014 until September 2015 by the set net of Moshta. Length frequency data were analyzed using FiSAT software and ELEFAN 1 method. The longest and the s...

The study was conducted to determine growth parameters, mortality, length frequency, age structure and catch per unit effort (CPUE) of Capeota capeota in Hassanloo reservoir in western Azerbaijan. Fish sampling was done seasonally in 2004-2005 by gill net with mesh sizes 20, 30, 40, 50, 60mm. The results showed age compositions of the fish were 1-5 years old. Average length and weight were esti...

A 46-day feeding trial was conducted with rainbow trout (Oncorhynchus mykiss) to examine the effects of partial substitution of plant protein sources with fish meal in diets. Three different sources of plant protein including soybean, sunflower and cottonseed meals were substituted by fish meal at four levels of 10, 20, 30 and 40 percentages. Each diet was assigned to triplicate groups of fish ...

A 46-day feeding trial was conducted with rainbow trout (Oncorhynchus mykiss) to examine the effects of partial substitution of plant protein sources with fish meal in diets. Three different sources of plant protein including soybean, sunflower and cottonseed meals were substituted by fish meal at four levels of 10, 20, 30 and 40 percentages. Each diet was assigned to triplicate groups of fish ...