The isolates were identified by their morphological characteristics, conventional biochemical tests and Analytical Profile Index test kits. A slice of nasal cavity of The aquaculture industry considers epitheliocystis an important problem. Full Text Available Penelitian ini bertujuan untuk mengevaluasi transmisi transgen PhGH dan performa ikan lele Afrika transgenik generasi ketiga F3 yang meliputi pertumbuhan, rasio efisiensi konversi pakan, konsentrasi hormon pertumbuhan dan hormon IGF-I. In addition, the elimination rates were range 0. However, the number of external injuries was significantly lower in the aquaponics, providing evidence that co-cultivation of fish and plants might offer benefits to the welfare of the fish. The enzyme had specific activity 6. Effect of some pulverised plant materials on the developmental stages of fish beetle, Dermestes maculatus Degeer in smoked catfish Clarias gariepinus during storage.
Histopathological changes of the gill, liver, and intestinal tissues of fish treated with sublethal concentration of gammalin 20 for twelve weeks showed gill distortion and fusion of adjacent secondary lamella as a result of hyperplasia and excessive mucus accumulation. Clarias gariepinus is widely cultured due to its tolerance to environmental extremes, high production and good feed conversion rate. Mercury concentrations were in the range of 0. Inhibition of hatchability of African catfish Clarias gariepinus eggs Finally, three groups of catfish were fed these corresponding groups of M. Histopathological changes in the Brain Tissue of Africa Catfish
Our findings revealed that the exposure of malathion, even at low doses, hinder or modulate early gonadal development differentially by targeting gene expression pattern of transcription factors, activin A, sex steroid or orphan nuclear receptors and steroidogenic enzymes with an evidence on histological changes. Surimi additions are intended to improve the mechanical properties of bioplastics and additions of Rosella extract intended as a bio-indicator of acidity.
Clarias gariepinus Burchell, for. Heavy metals concentrations were determined in fish organs of Tilapia zilli and Clarias gariepinus from River Benue along Makurdi metropolis sing atomic absorption spectrophotometer.
Isolation and Identification of Aeromonas hydrophila and Saprolegnia sp. Microbial evaluation and occurrence of antidrug multi-resistant organisms among the indigenous Clarias species in River Oluwa, Nigeria. At day-9 after immersion, fish was infected by A. A new species of Trichodina Ehrenberg, collected from the skin and fins of farmed North African catfish Clarias gariepinus Burchell fingerlings, is described.
Surimi additions are intended to improve the mechanical properties of bioplastics and additions of Rosella extract intended as a bio-indicator of acidity. The purpose of this study is to create an active environment-friendly packaging material.
The effects of brood llot size on the economy of catfish Clarias Full Text Available There are increasing concerns regarding the safe human consumption of fish from polluted, freshwater impoundments.
Although it is raised since and its production is increasing in Europe, Asia and Latin America, the African production is on standby.
In a farmed population of catfish used as positive control, development of pansteatitis could be ascribed to consumption of rancid fish waste from a trout slaughterhouse. Hormonal and haematological responses of Clarias gariepinus An intact group IG and an experimental group EG, bilateral excision of first gill arch were submitted to graded hypoxia, with and without access to air.
Concentration of polychlorinated biphenyl PCB congeners in the muscle of Clarias gariepinus and sediment from inland rivers of southwestern Nigeria and estimated potential human health consequences. Full Text Available Observations in drying out pans showed that small cm sharptooth catfish Clarias gariepinus can hide at the bottom of small pools filled with sticky mud whereas larger fish stay afloat at the surface in larger pools with sloppy mud, where they easily become prey or succumb to heat stress.
Due to their importance in aquaculture endeavors in Egypt, this study focused on two indigenous species, the Nile tilapia Oreochromis niloticus and the scale-less African sharptooth catfish Clarias gariepinus.
Based on hematology observations on the 3rd day post-challenge test H12 with A. Samples of fish were procured from Oluwo market, a landing site of fish of artisanal fishermen in Epe.
catfish clarias gariepinus: Topics by
The purpose of this study was to compare the productivity and. In addition, fish were investigated for external injuries on their skin, fins and barbels. Start your The fish farmers biinaan researchers have made efforts to increase catfish production through high levels of dispersal and application of biofloc systems.
Temperature dependence of cardiac sarcoplasmic reticulum and sarcolemma in the ventricle of catfish Clarias gariepinus. On the other hand, sediment bioconcentration factors for strontium were generally higher than that for water, which could imply higher bioavailability and concentration from the sediment.
Ipso-facto, the effector organs viz: Effects of acute stress on aggression and the cortisol response in the African sharptooth catfish Clarias gariepinus.
Histopathological changes of the gill, liver, and intestinal tissues of fish treated with sublethal concentration of gammalin 20 for twelve weeks showed gill distortion and fusion of adjacent secondary lamella as a result of hyperplasia and excessive mucus accumulation.
In addition, re-description of P.
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Effects of oxytocin on semen release response in African catfish Clarias gariepinus. The hour lethal concentration LC 50 value was 30 ppb. Fish reared in ponds were fed chicken offal, spoiled eggs, and commercial fish feed.
The use of the Binana seed for aquaculture resulted in a higher productivity, thus demands of the seed significantly increased.
Growth performance and nutrient utilization of Clarias gariepinus fed Cd concentration in fish muscle of experimental group 2 was equal to the permissible limit.
The number of skin lesions, as indicator of aggressive acts, and plasma cortisol levels, as indicator of stress-axis activity, were measured at baseline as well as following a. This system, in addition to increase production, can also predict when the harvest is done, control the quality of water causing death so that the Survival Rate SR is high.
However, both crosses produced viable larvae Hexavalent chromium concentrations and its effects on the morphology and behavior of Clarias gariepinus were investigated from four aquaculture ponds for 12 weeks. Economic values of growth and feed efficiency for fish farming in recirculating aquaculture system with density and nitrogen output limitations: Blood from the caudal vein was analyzed for the stress hormone cortisol and the glucose concentration.
During this period, all fish survived without displaying evidences of hyperactivity and maintained unchanged f Rconfirming that this species is a facultative air-breather. The con- centration of the metals were found to be highest in the gills, followed by the liver.
Its aquatic O 2 uptake [Formula: It seems to be a completely new character and an apomorphy. In vivo activity of native GnRHs and their analogues on ovulation in the American catfishClarias gariepinus Burchell. The embryos and larvae were exposed to 7 different concentrations 0, 0. Molasses as carbon source for heterotrophic bacteria was applied daily. A dynamic simulation model for growth of the African catfish, Clarias gariepinus Burchell Culture of sharptooth catfish, Clarias gariepinus in southern Africa.
Pre-transport handling and sorting elevated plasma cortisol levels compared to unhandled animals before fasting. The results demonstrate that the system design had no influence on fish mortalities and growth rates.
The oil yield Y as response variable was executed against the four independent variables, namely pressure, temperature, flow rate and soaking time.