Schools of juvenile haemulid fish feed in sea grass beds at night. By day they rest over coral heads, where they excrete substantial quantities of ammonium and particulate nitrogen and phosphorus into the nutrient-poor waters. The percentages of these nutrients contributed by the fish were comparable to those from other sources. Coral heads with resident fish schools grew faster than those with...

In connection with the global demand for safe human food and the production of environmentally friendly aquaculture products, acidifiers are natural organic acids and salts that have received considerable attention as animal-feed additives. The current study was designed to evaluate the effects of potassium diformate (KDF) on the growth performance and immunity of cultured Oreochromis niloticus...

a random block experiment 4×4 with sixteen diets containing four level of protein (35, 40, 45 and 50%) at four carbohydrate to lipid level (1.7, 1.4, .1 and 0.8 ) were designed to research about the ability of utilization of different levels of protein and carbohydrate to lipid ratios diet for juvenile huso huso ( 5.4 ± 0.2, mean sd )in fourteen weeks. fish fed 2-3% of body weight at each day. ...

Background: We investigated the effects of different dose of aflatoxins, secondary toxic metabolites produced by Aspergillus flavus, on some biochemical parameters in kidney of common carp (Cyprinus carpio). Methods: This study was done in Aquaculture and Biology Laboratory of Behbahn Khatam Alanbia University of Technology, Behbahan, Iran in 2015.  Fishes were distributed into five gro...

The growing demand for high-quality food has induced a rapid expansion of the aquaculture sector. On other hand, this sector to overcome numerous challenges and problems triggered by adoption intensive farming systems, such as stress high susceptibility diseases. improper use chemicals antibiotics led development antibiotic resistance in fish, with consequent health risks consumers. Natural add...