نتایج جستجو برای: walking catfish

تعداد نتایج: 45925  

2012
Mohammad Yakhchali Ali-Asghar Tehrani Mozafar Ghoreishi

This investigation was undertaken to verify the prevalence of helminths parasites in the gastrointestinal tract of catfish. A total number of 116 catfish (Silurus glanis) were collected from Zarrine-roud river and examined for helminths. Fish were examined after washing contents of gastrointestinal tract and observed for the presence of helminths using a stereo microscope and a light microscope...

2012

For modeling the electric organ discharge of Malapterurus electricus catfish we have set up the electromechanical scheme of the catfish as an electric dipole the charges of which are linked by a spring of stiffness k. We call this particular system of charges an oscillating electric dipole. Taking into account the main forces applied to this dipole and applying the Newton’s second law of motion...

Journal: :Revista da Sociedade Brasileira de Medicina Tropical 2016
Marcos Mendes de Barros Negreiros Seizo Yamashita Trajano Sardenberg Edson Luiz Fávero Felipe Augusto Horácio Ribeiro William Teixeira Haddad Vidal Haddad

Injuries caused by fish are common in marine and freshwater environments. Catfish of the Ariidae and Pimelodidae families cause about 80% of those injuries. One of the complications of injuries caused by fish is the retention of fragments of the stinger in the wounds. Here we report five cases (of a total of 127 injuries caused by catfish in the Brazilian coast) in which the retained fragments ...

1998
Robert M. Durborow Ronald L. Thune John P. Hawke

Columnaris disease is the second leading cause of mortality in pond raised catfish in the southeastern United States. It is second only to enteric septicemia of catfish (ESC) caused by the bacterium Edwardsiella ictaluri. Most species of fish are susceptible to columnaris following some type of environmental stress and when water temperatures are in the upper part of their preferred temperature...

Journal: :Journal of chromatography. B, Analytical technologies in the biomedical and life sciences 2006
Theresa A Gehring Bill Griffin Rod Williams Charles Geiseker Larry G Rushing Paul H Siitonen

A liquid chromatographic (LC) method for determining 14 sulfonamide (SA) (sulfanilamide, sulfadiazine (SDZ), sulfathiazole, sulfapyridine, sulfamerazine (SMR), sulfamethazine (SMZ), sulfamethizole, sulfamethoxypyridazine, sulfachloropyridazine (SCP), sulfamonomethoxine, sulfadoxine, sulfamethoxazole, sulfadimethoxine (SDM), and sulfaquinoxaline (SQX)) residues in edible catfish, shrimp and salm...

1993

Catfish diets must provide enough energy, protein, vitamins and minerals in the proper proportions for fast, efficient growth and health maintenance. Choosing the right feed plays an important role in determining the productivity and profitability of aquaculture operations. But, producers aren’t the only people who are interested in diet quality. Certain characteristics of the diet influence th...

J. Pirhonen J. Vielma U.D. Enyidi,

Plant proteins are plausible fishmeal substitutes but are deficient in some essential amino acids (EAA) like lysine and methionine. Combination of different plant proteins with complimentary EAA could be useful alternative. Bambaranut (Voandzeia subterranea) contains high amount of lysine while methionine is in sesame seed (Sesamum indicum). This experiment tested effects of combining sesame se...

Journal: :Artif. Intell. Research 2012
Li-Yeh Chuang Sheng-Wei Tsai Cheng-Hong Yang

The catfish particle swarm optimization (CatfishPSO) algorithm is a novel swarm intelligence optimization technique. This algorithm was inspired by the interactive behavior of sardines and catfish. The observed catfish effect is applied to improve the performance of particle swarm optimization (PSO). In this paper, we propose fuzzy CatfishPSO (F-CatfishPSO), which uses fuzzy to dynamically chan...

2007
S. K. GARG

To assess the role of the pineal gland in the regulation of ovarian activity, female catfish were exposed to various combinations of photoperiods during the postspawning period of the annual reproductive cycle. Ovarian recrudescence and vitellogenin synthesis were accelerated after pinealectomy in catfish maintained under short photoperiod (9L : 15D) at 25 °C. However, at 25 °C, under long (14L...

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