Reprint of: Effects of growth hormone transgene expression and triploidy on acute stress indicators in Atlantic salmon (Salmo salar L.)

Aquaculture ◽  
2014 ◽  
Vol 420-421 ◽  
pp. S124-S133 ◽  
Author(s):  
Avner Cnaani ◽  
Ewen McLean ◽  
Eric M. Hallerman
Keyword(s):  
Growth Hormone ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Transgene Expression ◽  
Acute Stress ◽  
Stress Indicators ◽  
Atlantic Salmon Salmo Salar

The effect of porcine somatotropin on growth, and survival in seawater of Atlantic salmon (Salmo salar) parr

1976 ◽  
Vol 54 (4) ◽  
pp. 531-535 ◽  
Author(s):  
M. P. Komourdjian ◽  
R. L. Saunders ◽  
J. C. Fenwick
Keyword(s):  
Growth Hormone ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Growth Hormone Treatment ◽  
Hormone Treatment ◽  
Control Fish ◽  
Growth And Survival ◽  
Atlantic Salmon Salmo Salar ◽  
Porcine Somatotropin

The effects of porcine growth hormone on growth and salinity tolerance were studied in Atlantic salmon (Salmo salar) parr. Fish were held in freshwater at 11.5 °C during June and July under a photoperiod with light to dark periods opposite to the prevailing natural conditions. Fish treated with 1.0 μg/g body weight of growth hormone preparation on alternate days were significantly longer (P <.05), after 4 weeks, than placebo-injected controls. All hormone-injected fish survived transfer to seawater, 30‰ salinity. But under the same conditions, placebo-injected control fish showed a high mortality rate. Growth-hormone treatment caused a darkening of fin margins and a yellowing of the operculae and fin surfaces. The silvering which normally accompanies smoltification was not observed. The role of growth hormone in eliciting these actions and its possible role in the parr–smolt transformation are discussed.

Osmoregulation, feed intake, growth and growth hormone levels in 0+ Atlantic salmon (Salmo salar L.) transferred to seawater at different stages of smolt development

Aquaculture ◽  
2003 ◽  
Vol 222 (1-4) ◽  
pp. 167-187 ◽  
Author(s):  
Arne M. Arnesen ◽  
Hilde Toften ◽  
Thorleifur Agustsson ◽  
Sigurd O. Stefansson ◽  
Sigurd O. Handeland ◽  
...  
Keyword(s):  
Growth Hormone ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Feed Intake ◽  
Hormone Levels ◽  
Atlantic Salmon Salmo Salar

scholarly journals Increasing the dietary n-6/n-3 ratio alters the hepatic eicosanoid production after acute stress in Atlantic salmon (Salmo salar)

Aquaculture ◽  
2021 ◽  
Vol 534 ◽  
pp. 736272
Author(s):  
Bjørg Kristine Hundal ◽  
Nina Sylvia Liland ◽  
Grethe Rosenlund ◽  
Erik Höglund ◽  
Pedro Araujo ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Acute Stress ◽  
Atlantic Salmon Salmo Salar ◽  
Eicosanoid Production

scholarly journals Effects of growth hormone on gill chloride cells in juvenile Atlantic salmon (Salmo salar)

1994 ◽  
Vol 266 (3) ◽  
pp. R850-R857 ◽  
Author(s):  
P. Prunet ◽  
M. Pisam ◽  
J. P. Claireaux ◽  
G. Boeuf ◽  
A. Rambourg
Keyword(s):  
Growth Hormone ◽  
Atlantic Salmon ◽  
Salmo Salar ◽  
Cell Types ◽  
Chloride Cells ◽  
Alpha Cells ◽  
Gh Treatment ◽  
Sodium Efflux ◽  
Atlantic Salmon Salmo Salar ◽  
Accessory Cells

Experiments were performed to investigate the effects of ovine growth hormone (oGH) on both the ultrastructural features of chloride cells and the ability of gills to extrude Na+ after transfer into seawater. February presmolts and June parrs of the Atlantic salmon (Salmo salar) were implanted with oGH. In such animals, spontaneously showing a poor ability to adapt themselves to seawater life, GH significantly increased gill Na(+)-K(+)-adenosinetriphosphatase activity as well as gill sodium efflux into seawater. When examined by electron microscope, two types of chloride cells (alpha- and beta-types) were identified in control parrs and presmolts. GH treatment induced an increase in size and number of alpha-cells that displayed an extensive tubular system, while the beta-cells, thought to be specific to freshwater life, decreased in number. There was, concomitantly, an increase in number of accessory cells associated with the apical portion of the alpha-cells and, as a result, the formation of extensive shallow junctions between these cell types. Such functional and ultrastructural modifications that mimicked those naturally occurring during the last steps of the smoltification strongly suggest that GH stimulates the differentiation of freshwater chloride cells toward a seawater type.

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