Background: Enzymes are the biological catalysts which accelerate the various cellular reactions. In general, the enzymes alkaline phosphatase (ALPase), acid phosphatase (ACPase), 5′-nucleotidase (5′-Nu) and glucose-6phosphatase (G-6-Pase) have important roles in metabolism. In the present study, a comparative account of the localization of activity of four enzymes acid phosphatase, alkaline ph...

Adult specimens of Oswaldotrema nacinovici (Digenea: Philophthalmidae) have been first identified in Korea from 2 migratory birds (whimbrels, Numenius phaeopus) which were found dead at a western seashore area near Gunsan. The worms were recovered in the intestine of these birds. The worms were morphologically characterized by a large ventral sucker in comparison to the oral sucker, an external...

The attachment of Clinostomum sp. to the oesophagus of the bird definitive host Ardea cocoi is reported. The parasite attaches to the mucous layer of the oesophagus by the acetabulum, oral sucker, and oral collar. The mucous layer of the oesophagus engulfed by the oral sucker presents an intense liquefactive necrosis, and the engulfment is not likely to contribute significantly to the attachmen...

Most thoracic surgeons have encountered a number of situations in which a specimen was too large to fit through a small intercostal incision. This report highlights a useful technique for specimen extraction from the thorax using a vinyl bag and a sucker. The sucker creates negative pressure, and the liquid and air components from the specimen are removed. The specimen can be deflated and remov...

Mainly due to its long history, sucker-rod pumping is a very popular means of artificial lift all over the world, roughly two-thirds of the producing oil wells are on this type of lift. To maximize profits from these wells in the ever-changing economic situation with rising costs of electric power, installation designs must ensure optimum conditions. In the paper, basic considerations on ensuri...

OBJECTIVE Sancassania berlesei (S. berlesei) is the leading threatening mite in breeding industry of Eupolyphaga sinensis and public health. METHODS Living specimens of S. berlesei were obtained from the surface of Eupolyphaga sinensis and purified with double-distilled water. The egg, larva, nymph, hypopus, adult male and female of S. berlesei were screened and picked out under microscope. ...

Scanning electron microscopy examinations of trematode specimens belonging to Crepidostomum farionis (O.F. Muller, 1784) and C. metoecus Braun, 1900, collected from brown trout, Salmo trutta fario L., in the Czech Republic, made it possible to study their surface morphology including details not described previously. The tegument of both species bears numerous characteristic papillae around the...

—Poor recruitment has generated the hypothesis that the endangered razorback sucker Xyrauchen texanus is particularly vulnerable to predation early in its life history. We compared the escape responses of razorback suckers, which are adapted to the historically warm waters of the Colorado River, with those of rainbow trout Oncorhynchus mykiss, an introduced coldwater species, throughout early d...

Black leg has been reported in a variety of animals, but is ofthe most importance in cattle and sheep. A20 days old Holsteindairy calf was examined because of anorexia and lameness from2 days ago. The calf was depressed, tachypneic, tachycardic, andhad a body temperature of 38.5ºC. Both hind limbs proximal tothe tarsal joint were markedly swollen, firm and painful. Nocrepitation was noted on pa...

NOLLEN, PAUL M., AND NADAKAVTIUREN, MATHEW J. 1974. Megalodiscus ternperatus: .Scanning Electron Microscopy of the tegumental surfaces. Experimental Parasitology 36, 123-130. The tegumental surface of Megalodiscus temperatus forms cobblestonelike areas with rows of indentations encircling the worm. This pattern merges in several areas into folds and ridges, some of which represent the musculatu...