Plasma arginine vasotocin and angiotensin ii in the water deprived Kelp gull (Larus dominicanus), Cape gannet (Sula capensis) and Jackass penguin (Spheniscus demersus)

1988 ◽  
Vol 91 (4) ◽  
pp. 727-732 ◽  
Author(s):  
David A Gray ◽  
Theunis Erasmus
Keyword(s):  
Angiotensin Ii ◽  
Arginine Vasotocin ◽  
Kelp Gull ◽  
Larus Dominicanus ◽  
Spheniscus Demersus ◽  
Plasma Arginine

scholarly journals Brown plumage aberration records in Kelp Gull (Larus dominicanus) and Magellanic Penguin (Spheniscus magellanicus) in southern Brazil

2017 ◽  
Vol 25 (2) ◽  
pp. 125-127 ◽  
Author(s):  
Maria Virginia Petry ◽  
Luiz Liberato Costa Corrêa ◽  
Victória Renata Fontoura Benemann ◽  
Gabriela Bandasz Werle
Keyword(s):  
Southern Brazil ◽  
Magellanic Penguin ◽  
Spheniscus Magellanicus ◽  
Kelp Gull ◽  
Larus Dominicanus

Patterns of plastic ingestion in Kelp Gull (Larus dominicanus) populations breeding in northern Patagonia, Argentina

2020 ◽  
Vol 156 ◽  
pp. 111240 ◽  
Author(s):  
Pablo Yorio ◽  
Cristian Marinao ◽  
Tatiana Kasinsky ◽  
Cynthia Ibarra ◽  
Nicolás Suárez
Keyword(s):  
Northern Patagonia ◽  
Kelp Gull ◽  
Larus Dominicanus

Dehydration and arginine vasotocin and angiotensin II in CSF and plasma of pekin ducks

1987 ◽  
Vol 253 (2) ◽  
pp. R285-R291 ◽  
Author(s):  
D. A. Gray ◽  
E. Simon
Keyword(s):  
Cerebrospinal Fluid ◽  
Angiotensin Ii ◽  
Anas Platyrhynchos ◽  
Salt Water ◽  
The State ◽  
Arginine Vasotocin ◽  
Plasma Samples ◽  
Ang Ii ◽  
Independent Control ◽  
Pekin Ducks

Osmolalities and, by radioimmunoassay, the contents of arginine vasotocin (AVT) and angiotensin II (ANG II) in simultaneously collected cisternal cerebrospinal fluid (CSF) and plasma samples were determined in chronically prepared conscious Pekin ducks (Anas platyrhynchos) adapted to either freshwater (FW ducks) or salt water (2% saline, SW ducks) for drinking. In FW ducks the AVT in CSF was approximately 10-fold higher than in plasma; ANG II concentration in CSF was about two-thirds of that in plasma. In SW ducks concentrations of AVT were increased approximately threefold and of ANG II fourfold in both CSF and plasma. Dehydration in FW ducks (24-48 h) increased AVT and ANG II in both CSF and plasma, the relative rise being greater in plasma. Within 150 min after rehydration plasma AVT fell at unchanged CSF AVT, whereas CSF ANG II fell at unchanged plasma ANG II. Hydration of SW ducks with freshwater had similar effects. The results indicate separate avenues of release of central and systemic AVT and ANG II and support the idea of an independent control of central ANG II as a mediator in osmoregulation, with CSF AVT reflecting the state of osmoregulatory activity of the hypothalamopituitary vasotocinergic system.

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