Results 241 to 250 of about 114,858 (292)

Tissue carboxylesterase activity of rainbow trout

Environmental Toxicology and Chemistry, 1999
AbstractThe activity of carboxylesterase (CaE), a class of nonspecific serine hydrolases, was evaluated in vitro in tissues and microsomes of rainbow trout and compared to esterase activity in rats, other fish species, and embryo to adult life stages of trout. Trout gill and liver microsomes exhibited substantial CaE activity and limited variation over
Mace G. Barron, Kem A. Charron, William T. Stott, Stephanie E. Duvall   +3 more
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Production of androgenetic diploid rainbow trout

Journal of Heredity, 1985
Haploid androgenesis was induced in rainbow trout (Salmo gairdneri) when eggs were irradiated with 60Co gamma radiation prior to fertilization. Diploidy was restored to the androgenetic haploid zygotes by suppression of first cleavage division using hydrostatic pressure.
J E, Parsons, G H, Thorgaard
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Erythrocyte volume distribution in rainbow trout

American Journal of Veterinary Research, 1985
SUMMARY Reference mean corpuscular volume and volume heterogeneity values for erythrocytes of 23 rainbow trout were measured, using an electronic particle counter, and were analyzed, using a particle-size analyzer and microcomputer. The mean (± sd) erythrocyte count was 1.5 × 106 ± 0.16 × 106 cells/µl, the mean corpuscular volume was 346 ± 25 fl, and ...
P J, Haley, M G, Weiser
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Genetic analysis of androgenetic rainbow trout

Journal of Experimental Zoology, 1991
AbstractWe analyzed a number of genetic characteristics in androgenetic rainbow trout (Oncorhynchus mykiss) and their progeny. The androgenetic progeny of individual androgenetic males appeared genetically identical to each other based on eight enzyme loci. Their viability was no higher than that of androgenetic progeny of outbred males.
P D, Scheerer, G H, Thorgaard, F W, Allendorf   +2 more
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Rainbow trout (Oncorhynchus mykiss) neuropeptide Y

Peptides, 1992
Neuropeptide Y (NPY) has been isolated from brain extracts of the rainbow trout (Oncorhynchus mykiss) and subjected to structural analyses. Plasma desorption mass spectroscopy estimated the molecular mass of the purified peptide as 4303.9 Da. Automated Edman degradation unequivocally established the sequence of a 36 amino acid residue peptide as: Tyr ...
C L, Barton, C, Shaw, D W, Halton, L, Thim   +3 more
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A Rainbow Trout Lectin with Multimeric Structure

Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology, 1997
A novel lectin has been identified in rainbow trout serum and plasma. The lectin binds to Sepharose (an agarose polymer) in a calcium-dependent manner. Glucose, N-acetyl-glucosamine, mannose, N-acetyl-mannosamine, L-fucose, maltose and alpha-methyl-mannoside are good inhibitors of this binding, whereas glucosamine and D-fucose inhibits to a lesser ...
Jensen, L E, Thiel, S, Petersen, T E, Jensenius, J C   +3 more
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Utilization of Dietary Urea in Rainbow Trout

Annals of Nutrition and Metabolism, 1983
Experiments were conducted to examine the potential utilization of dietary urea by rainbow trout. A control diet and two diets supplemented with 1 and 3% of urea were fed to fish. Postprandial levels of urea and ammonia in blood plasma, and postprandial excretion of these metabolites were followed during 24 h.
Kaushik, S.J., Dabrowski, K., Dabrowska, H., Olah, E., Luquet, P.   +4 more
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Viral haemorrhagic septicaemia virus multiplication and interferon production in rainbow trout and in rainbow trout × brook trout hybrids

Fish & Shellfish Immunology, 1994
Abstract Rainbow trout ( Oncorhynchus mykiss ) susceptible to Viral Haemorrhagic Septicaemia (VHS) Virus type 1 and rainbow trout × brook trout ( Salvelinus fontinalis ) triploid hybrids were challenged with VHSV by either immersion or i.p. injection of the virus.
Dorson, M., Torhy, Corinne, de Kinkelin, P.   +2 more
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Methemoglobin in erythrocytes of rainbow trout

Comparative Biochemistry and Physiology Part A: Physiology, 1971
Abstract 1. 1. The proportion of hemoglobin carried as oxidized (met-) hemoglobin was found to vary from 2·9 per cent in a wild stock to 17 per cent in a hatchery stock of rainbow trout. 2. 2. Hypoxia, anemia and the reticulocyte percentage (and consequently cell age) had little effect on the methemoglobin content. 3. 3.
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Habitat shifts in rainbow trout: competitive influences of brown trout

Oecologia, 1987
We compared habitat use by rainbow trout sympatric (three streams) and allopatric (two streams) with brown trout to determine whether competition occurred between these two species in the southern Appalachian Mountains. We measured water depth, water velocity, substrate, distance to overhead vegetation, sunlight, and surface turbulence both where we ...
A J, Gatz, M J, Sale, J M, Loar
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