Extracellular fluid volume measurements in tissues of the rainbow trout (Oncorhynchus mykiss)in vivo and their effects on intracellular pH and ion calculations

1991 ◽  
Vol 9 (4) ◽  
pp. 313-323 ◽  
Author(s):  
R. S. Munger ◽  
S. D. Reid ◽  
Chris M. Wood
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Intracellular Ph ◽  
Extracellular Fluid ◽  
Fluid Volume ◽  
Extracellular Fluid Volume ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Volume Measurements

Myotomal slow muscle function of rainbow trout Oncorhynchus mykiss during steady swimming.

1998 ◽  
Vol 201 (10) ◽  
pp. 1659-1671 ◽  
Author(s):  
L Hammond ◽  
J D Altringham ◽  
C S Wardle
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Body Length ◽  
Muscle Activation ◽  
Activity Patterns ◽  
The Body ◽  
Entire Body ◽  
Negative Power ◽  
Rainbow Trout Oncorhynchus Mykiss

Strain and activity patterns were determined during slow steady swimming (tailbeat frequency 1.5-2.5 Hz) at three locations on the body in the slow myotomal muscle of rainbow trout Oncorhynchus mykiss using sonomicrometry and electromyography. Strain was independent of tailbeat frequency over the range studied and increased significantly from +/-3.3 % l0 at 0.35BL to +/-6 % at 0.65BL, where l0 is muscle resting length and BL is total body length. Muscle activation occurred significantly later in the strain cycle at 0.35BL (phase shift 59 degrees) than at 0.65BL (30 degrees), and the duration of activity was significantly longer (211 degrees at 0.35BL and 181 degrees at 0.65BL). These results differ from those of previous studies. The results have been used to simulate in vivo activity in isolated muscle preparations using the work loop technique. Preparations from all three locations generated net positive power under in vivo conditions, but the negative power component increased from head to tail. Both kinematically, and in the way its muscle functions to generate hydrodynamic thrust, the rainbow trout appears to be intermediate between anguilliform swimmers such as the eel, which generate thrust along their entire body length, and carangiform fish (e.g. saithe Pollachius virens), which generate thrust primarily at the tail blade.

Identification of phase II in vivo metabolites of alkyl-anthracenes in rainbow trout (Oncorhynchus mykiss)

Chemosphere ◽  
2011 ◽  
Vol 85 (10) ◽  
pp. 1585-1591 ◽  
Author(s):  
Dominique Turcotte ◽  
John V. Headley ◽  
Naamah L. Abudulai ◽  
Peter V. Hodson ◽  
R. Stephen Brown
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Phase Ii ◽  
Rainbow Trout Oncorhynchus Mykiss

IMMUNOMODULATION BY HEAVY METALS TESTED INDIVIDUALLY OR IN MIXTURES IN RAINBOW TROUT (ONCORHYNCHUS MYKISS) EXPOSED IN VIVO

1999 ◽  
Vol 18 (7) ◽  
pp. 1492 ◽  
Author(s):  
Jaime Sanchez-Dardon ◽  
Isabelle Voccia ◽  
Alice Hontela ◽  
Stefan Chilmonczyk ◽  
Muriel Dunier ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Rainbow Trout Oncorhynchus Mykiss

Sodium uptake from the gut of freshwater- and seawater-acclimated ducks and gulls

1988 ◽  
Vol 66 (6) ◽  
pp. 1365-1370 ◽  
Author(s):  
M. R. Hughes ◽  
J. R. Roberts
Keyword(s):  
Extracellular Fluid ◽  
Fluid Volume ◽  
Extracellular Fluid Volume ◽  
Ion Concentration ◽  
Plasma Sodium ◽  
Salt Glands ◽  
Gut Epithelium ◽  
Seawater Acclimation ◽  
Na Uptake

The first possible regulator of plasma sodium ([Na]pl) and chloride ([Cl]pl) concentrations is the gut epithelium. Its in vivo role in uptake of ingested salt in birds with salt glands has not been evaluated. In the present study the anterior gut 22Na uptake rate was measured in freshwater-acclimated ducks (Anas platyrhynchos) and gulls (Larus glaucescens) and was then measured in the same birds after acclimation to 2/3 seawater. The 22Na was given orally in 7–10 mL of 171 mM NaCl. In ducks, seawater acclimation increased [Na]pl and [Cl]pl but not Na space; in gulls seawater acclimation increased Na space, but not plasma ion concentration. The rate of gut 22Na uptake was the same in ducks and gulls and was not affected by seawater acclimation in either species. As determined from the 22Na distribution between erythrocytes and plasma 3 h after i.v. 22NaCl injection, duck erythrocytes sequestered more (9.3% ± 0.4%) of the load than did gull erythrocytes (6.9% ± 0.3%) (P < 0.001). Although gulls are better hyperosmotic regulators than ducks, there was no difference between the two species in the entry of sodium into the extracellular fluid volume from the gut. Immediately after oral gut loading with dilute saline, freshwater-acclimated gull [Cl]pl, increased more (2P < 0.001) than could be accounted for by equilibration of the administered Cl within the extracellular fluid volume. After gut loading, the increase in [Cl]pl, of freshwater-acclimated ducks was less rapid and could be accounted for by extracellular distribution of the oral Cl load. In seawater-acclimated gulls, [Cl]pl decreased following gut loading, but was unchanged in seawater-acclimated ducks.

Rancidity development of refrigerated rainbow trout ( Oncorhynchus mykiss ) fillets: comparative effects of in vivo and in vitro lycopene

2017 ◽  
Vol 98 (2) ◽  
pp. 559-565 ◽  
Author(s):  
Ali Ehsani ◽  
Mohammad Sedigh Jasour ◽  
Naser Agh ◽  
Mohammad Hashemi ◽  
Mahdi Khodadadi
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Rainbow Trout Oncorhynchus Mykiss

Kinetics of copper and nitrite in rainbow trout (Oncorhynchus mykiss): The isolated perfused head preparation as alternative to in vivo assays

1995 ◽  
Vol 9 (4) ◽  
pp. 505-508 ◽  
Author(s):  
J.A. Martinez-pereda ◽  
A. Castaño ◽  
P. Pärt ◽  
G. Carbonell ◽  
M. Carballo ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
In Vivo Assays ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Kinetics Of
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