scholarly journals Research Note: The Absence of Sex and Age Effects on the Corticosterone Response of Turkey Poults to Adrenocorticotropic Hormone and Temperature Stressors

1989 ◽  
Vol 68 (6) ◽  
pp. 846-849 ◽  
Author(s):  
G.S. DAVIS ◽  
T.D. SIOPES
Keyword(s):  
Adrenocorticotropic Hormone ◽  
Age Effects ◽  
Research Note ◽  
Turkey Poults ◽  
Corticosterone Response

scholarly journals Research Note: Vitamin E Status of Turkey Poults as Influenced by Different Dietary Vitamin E Sources, a Bile Salt, and an Antioxidant

1993 ◽  
Vol 72 (6) ◽  
pp. 1184-1188 ◽  
Author(s):  
MARIA F. SOTO-SALANOVA ◽  
JERRY L. SELL ◽  
EMMA G. MALLARINO ◽  
F. JAVIER PIQUER ◽  
DARRYL L. BARKER ◽  
...  
Keyword(s):  
Vitamin E ◽  
Bile Salt ◽  
Research Note ◽  
Dietary Vitamin ◽  
Turkey Poults ◽  
Vitamin E Status

scholarly journals Research Note: Isolation of Two Filamentous Bacteria Associated with Enteritis in Turkey Poults

1992 ◽  
Vol 71 (1) ◽  
pp. 203-207 ◽  
Author(s):  
TERESA Y. MORISHITA ◽  
KENNETH M. LAM ◽  
RICHARD H. MCCAPES
Keyword(s):  
Research Note ◽  
Filamentous Bacteria ◽  
Turkey Poults

Circadian variation in response to CRF-41 and AVP

1988 ◽  
Vol 255 (3) ◽  
pp. E265-E271
Author(s):  
M. Graf ◽  
A. J. Fischman ◽  
A. J. Kastin ◽  
R. L. Moldow
Keyword(s):  
Adrenocorticotropic Hormone ◽  
Circadian Variation ◽  
Early Morning ◽  
Plasma Corticosterone ◽  
Corticotropin Releasing Factor ◽  
Constant Darkness ◽  
Base Line ◽  
Dark Cycle ◽  
Corticosterone Response ◽  
Endogenous Release

The diurnal response to ovine corticotropin-releasing factor (CRF-41), arginine vasopressin (AVP), and adrenocorticotropic hormone (ACTH) was studied in rats in which the endogenous release of CRF was blocked by chlorpromazine, morphine sulfate, and pentobarbital sodium. This procedure resulted in a markedly attenuated circadian rhythm at base-line levels of plasma corticosterone and ACTH. Decreased pituitary responsiveness to CRF-41 and AVP at 0400 compared with 1600 was observed. The plasma corticosterone response 30 min after intravenous injection of ovine CRF-41 (0.1 microgram/kg) or AVP (5.0 micrograms/kg) remained nearly constant over the major portion of the 24-h light-dark cycle. However, in the early morning (0400), 2 h before lights on, there was an approximately threefold decrease in response. The time of this decrease in response coincided with the normal decline in the concentrations of plasma corticosterone and ACTH. Rats exposed to constant darkness for 10 days continued to show a significantly greater response to CRF or AVP at 1600 than at 0400. In contrast, rats exposed to constant light for 10 days failed to demonstrate a differential response to CRF or AVP at different times of the day. These results demonstrate that there is a diurnal rhythm in pituitary response to CRF and AVP.

scholarly journals SERUM CORTICOSTERONE RESPONSE TO ADRENOCORTICOTROPIC HORMONE STIMULATION IN FLORIDA SANDHILL CRANES

1998 ◽  
Vol 34 (4) ◽  
pp. 715-721 ◽  
Author(s):  
John W. Ludders ◽  
Julie A. Langenberg ◽  
Nancy M. Czekala ◽  
Hollis N. Erb ◽  
Heather McCormick
Keyword(s):  
Adrenocorticotropic Hormone ◽  
Serum Corticosterone ◽  
Hormone Stimulation ◽  
Corticosterone Response ◽  
Sandhill Cranes
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