Problem statement: Heavy metals constitute one of the most hazardous substances that could be accumulated in biota. Fish populations exploited by man often live in coastal area environments that contain high levels of heavy metals, coming from human activities such as industrial and agricultural wastes. A problem to deal when using fishes as biomonitors of heavy metals is the relationship exist...

Understanding the factors that contribute to the risk from fish consumption is an important public health concern because of potential adverse effects of radionuclides, organochlorines, other pesticides, and mercury. Risk from consumption is normally computed on the basis of contaminant levels in fish, meal frequency, and meal size, yet cooking practices may also affect risk. This study examine...

The experiment was conducted to evaluate the effects of beta glucan, the plant extract, Vitabio A, and the plant extract with probiotic Lactobacillus spp. (Vitabio B) on the growth, histology and immune response of Labeo rohita (Rohu), reared for 120 days in a flow through system. Fish with an average body weight of 264±2.65g were stocked in cemented tanks at 10 fish/replicate. Four iso-nitroge...

I. The effect of dietary fish solubles on the growth and gut weight of conventional and germ-free chicks and of chicks given potentially growth-depressing agents present in the excreta was investigated. 2. Fish solubles significantly increased the growth of conventional but not of germ-free chicks. Oral administration of fresh, but not autoclaved, droppings depressed the growth of chicks hatche...

the research was accomplished in order to study behavioral and histopathological effects of copper on rutilus rutilus caspicus under experimental condition. the study was performed using water static method during 96 hours. 15 fish with averaged weight 2?0.5 g in weight were encountered to different concentrations (0, 0.1, 0.2, 0.3, 0.4 mg/l) of copper. a group of fish was considered as control...

levels of contaminants in fish are of particular interest because of the potential risk to humans consuming them. this paper examines the levels of cadmium, lead, zinc and copper in liver and muscle tissue of esox lucius and in sediments from the anzali international wetland in iran. the wetland is a nursery and feeding habitat for fish species both from the lagoon and the caspian sea, which ar...

the effect of different levels of wood betony (wb), stachys lavandulifolia extract, as complement in feed, on the performance of common carp, cyprinus carpio was evaluated. the fish (44±0.62 g) was assigned to four treatments, three replicates each. the fish was fed on normal diet with no wb (control) vs. diet containing 2, 4 and 8% of wb extract. fish were successively fed on the diet, 2% live...

Ž . An earlier study with a repeating no-feedrrefeed schedule D2 schedule elicited compensatory Ž . Ž growth CG in age-0 hybrid sunfish F1: female green sunfish, Lepomis cyanellus=male bluegill . L. macrochirus held individually and fed ad libitum on feeding days. Weight gain under these conditions exceeded that of daily-fed controls. The present study sought to determine whether similar growth...

this study was conducted to determine length-weight and length-length relationships, relative condition factor (krel) and fulton?s condition factor (k) for five species including scardinius erythrophtalmus, carassius auratus gibelio, cyprinus carpio, tinca tinca and hemiculter leucisculus belonging to cyprinidae family. fish sampling was carried out by gill net and fyke net in the western regio...

The condition of the female fish, Notopterus notopterus was studied during four phases of the reproductive cycle in control and after cortisol hormone treatment. The condition of the fish including condition factor (K) and somatic condition factor (Ks) was determined based on weight of the body, length of the fish and gonad weight. In control fish the condition of the fish improve during prespa...