Dietary protein differentially regulates the kinetic behaviour of serine dehydratase and tyrosine aminotransferase of liver and white muscle of rainbow trout (Oncorhynchus mykiss)

2010 ◽  
Vol 157 (2) ◽  
pp. 213-219 ◽  
Author(s):  
Juan Peragón ◽  
Manuel De La Higuera ◽  
José A. Lupiáñez
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Dietary Protein ◽  
White Muscle ◽  
Tyrosine Aminotransferase ◽  
Kinetic Behaviour ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Serine Dehydratase

Regulation of the kinetic behavior of serine dehydratase and tyrosine aminotransferase during the development of rainbow trout (Oncorhynchus mykiss)

Aquaculture ◽  
2009 ◽  
Vol 293 (1-2) ◽  
pp. 119-124 ◽  
Author(s):  
Juan Peragón ◽  
Fermín Aranda ◽  
Leticia García-Salguero ◽  
Manuel de la Higuera ◽  
José A. Lupiáñez
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Tyrosine Aminotransferase ◽  
Kinetic Behavior ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Serine Dehydratase

RNA/DNA ratios in white muscle as estimates of growth in rainbow trout held at different temperatures

1990 ◽  
Vol 68 (7) ◽  
pp. 1494-1498 ◽  
Author(s):  
Moira M. Ferguson ◽  
Roy G. Danzmann
Keyword(s):  
Growth Rate ◽  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
White Muscle ◽  
Specific Growth ◽  
Fish Size ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Different Temperatures ◽  
Specific Growth Rates ◽  
Rna And Dna

The concentrations of RNA, DNA, and protein in white muscle from 240 uniquely tagged rainbow trout (Oncorhynchus mykiss) held at three temperatures (5, 8 (control), and 11 °C) were measured. Both RNA and RNA/DNA ratios were better predictors of recent length- and weight-specific growth rates than they were of absolute fish size. Furthermore, RNA concentrations were better predictors of growth than RNA/DNA ratios. The strength of the regression between either RNA/DNA ratio or RNA and growth rate did not differ consistently among temperatures. Fish reared at warmer temperatures had lower concentrations of RNA for both a given growth rate and a given DNA concentration compared with cold-reared trout. Warm-reared fish also had lower concentrations of DNA and higher protein/DNA ratios than cold-reared trout when fish size was standardized. The concomitant decrease in both RNA and DNA concentrations resulted in marginally lower RNA/DNA ratios in warm-reared fish.

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