Journal of the Fisheries Research Board of Canada, 1967, 24(5): 965-974, https://doi.org/10.1139/f67-086 Abstract Counts of pyloric caeca and gill rakers were made on lake trout ( Salvelinus namaycush ) in three Algonquin Park lakes where the trout were dependent on plankton for food in varying degrees. Counts of pyloric caeca and gill rakers were made on lake trout (Salvelinus namaycush) in three Algonquin Park lakes where the trout were dependent on plankton for food in varying degrees.In 798 trout from the three lakes, pyloric caeca counts ranged from 105 to 210 and varied with the size of trout. Two chymotrypsins, called chymotrypsin I and II, were purified from the pyloric caeca of rainbow trout, by (NH4)2SO4 fractionation, hydrophobic interaction chromatography (phenyl-Sepharose) and ion-exchange chromatography (DEAE-Sepharose).
Materials and methods Trout females, migrating to spawn in 5 Pomeranian rivers: the Rega. amined, the number of pyloric caeca varied from 36 to 57. oesophagus cardiac stomach pyloric stomach SOJJ, FIG. These results lead to question the role that pyloric caeca may play in growth, as well as their usefulness in fish breeding. Nutrient absorption occurs in both. The Abstract. The function of the pyloric caeca of fish has been uncertain since their detailed description in 345 B.C. Bar: 200 µm. DI, distal intestine; IN, intestine; MI, middle intestine; PC, pyloric caeca; PI, proximal intestine; SB, swim bladder; ST, stomach. 1 A., diagram of the gross anatomy of the gut of a trout 180 mm long, showing the various regions. A transient deflection in plasma osmolality and muscle water content lasting from 4 h until day 3 was followed by restoration of hydromineral balance from day 5 onward. caeca fill and then empty with a time course similar to that for proximal intestine. caeca, we fed blue gelatin capsules containing equal parts by volume of powdered trout feed and a mixture of glass beads ranging in size from 10 to 1500 Am (Sigma) to three trout. After swallowing their prey, they then place it in their Pyloric caeca where the digestion process starts. The brook trout, which is the smaller parent, has only 23-55 (usually less than 50) pyloric caeca, while the intermediate-sized hybrid has 65-85, and the lake trout, the larger parent, has 93-208 caeca (most often 120-180). trout pyloric caeca count can be used as a possible marker with which to identify stocks inhabiting different Pomeranian rivers.
Food Chem. B, transverse section through the wall of the cardiac stomach, showing the (Magnification, xO.4.) Disaccharidase Activities. Abstract Changes in protein and mRNA expression of Na+,K+‐ATPase in gills and pyloric caeca of brown trout were investigated on a detailed time course after transfer from freshwater to 25 ppt seawater (SW).