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The seasonal pattern of testosterone secretion in finn cross rams in Israel
Year:
1986
Source of publication :
Animal Reproduction Science
Authors :
Amir, David
;
.
Gacitua, Haim
;
.
Pines, Mark
;
.
Ron, Micha
;
.
Volume :
10
Co-Authors:
Amir, D., Institute of Animal Science, A.R.O., The Volcani Center, P.O.B. 6, Bet Dagan 50-250, Israel
Pines, M., Institute of Animal Science, A.R.O., The Volcani Center, P.O.B. 6, Bet Dagan 50-250, Israel
Gacitua, H., Institute of Animal Science, A.R.O., The Volcani Center, P.O.B. 6, Bet Dagan 50-250, Israel
Ron, M., Institute of Animal Science, A.R.O., The Volcani Center, P.O.B. 6, Bet Dagan 50-250, Israel
Facilitators :
From page:
245
To page:
250
(
Total pages:
6
)
Abstract:
Three adult Finn cross rams were bled at 30-min intervals for 7 h in March, May-June, August and November, and again at hourly intervals for 2 h after an intravenous injection of 50 μg of a GnRH analogue. Plasma testosterone concentrations were measured by radioimmunoassay. The mean testosterone level from 15 blood samples for each ram was highest in November and lowest in March. The episodic pulse pattern of testosterone secretion during the 7-h blood sampling periods was most evident, and more similar among rams in August and November, and less so in March and May. The mean testosterone concentration from the blood samples collected 1 and 2 h after GnRH injection was significantly higher in August-November than in March-June, but the ratio of the testosterone level after to that before injection was highest in March and lowest in November. © 1986.
Note:
Related Files :
Animals
hormones
Israel
sheep
sheep and goats
testosterone
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Related Content
More details
DOI :
10.1016/0378-4320(86)90035-7
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
30313
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:53
You may also be interested in
Scientific Publication
The seasonal pattern of testosterone secretion in finn cross rams in Israel
10
Amir, D., Institute of Animal Science, A.R.O., The Volcani Center, P.O.B. 6, Bet Dagan 50-250, Israel
Pines, M., Institute of Animal Science, A.R.O., The Volcani Center, P.O.B. 6, Bet Dagan 50-250, Israel
Gacitua, H., Institute of Animal Science, A.R.O., The Volcani Center, P.O.B. 6, Bet Dagan 50-250, Israel
Ron, M., Institute of Animal Science, A.R.O., The Volcani Center, P.O.B. 6, Bet Dagan 50-250, Israel
The seasonal pattern of testosterone secretion in finn cross rams in Israel
Three adult Finn cross rams were bled at 30-min intervals for 7 h in March, May-June, August and November, and again at hourly intervals for 2 h after an intravenous injection of 50 μg of a GnRH analogue. Plasma testosterone concentrations were measured by radioimmunoassay. The mean testosterone level from 15 blood samples for each ram was highest in November and lowest in March. The episodic pulse pattern of testosterone secretion during the 7-h blood sampling periods was most evident, and more similar among rams in August and November, and less so in March and May. The mean testosterone concentration from the blood samples collected 1 and 2 h after GnRH injection was significantly higher in August-November than in March-June, but the ratio of the testosterone level after to that before injection was highest in March and lowest in November. © 1986.
Scientific Publication
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