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פותח על ידי קלירמאש פתרונות בע"מ -
85Sr/45Ca discrimination by the active shell gland of the fowl
Year:
1973
Authors :
בר, אריה
;
.
הורויץ, שמואל (בעלי חיים)
;
.
Volume :
44
Co-Authors:
Simkiss, K., Department of Zoology and Comparative Physiology, Queen Mary College, London E.1., UK
Hurwitz, S., Animal Science, Volcani Centre, P.O.B.6, Bet Dagan, Israel
Bar, A., Animal Science, Volcani Centre, P.O.B.6, Bet Dagan, Israel
Facilitators :
From page:
201
To page:
205
(
Total pages:
5
)
Abstract:
1. 1. A mixture of 85Sr and 45Ca was injected into the veins of laying hens and the 85Sr/45Ca ratio of plasma, shell gland mucosa and eggshell were measured. 2. 2. There is a discrimination against strontium in the body and the 85Sr/45Ca ratio of the plasma rises progressively. 3. 3. The discrimination against strontium is only 1·5 times that of calcium in the passage from plasma to eggshell. 4. 4. Calcium binding protein is present in the shell gland but its formation constant for calcium is about seven times that of strontium and it is not, therefore, considered to play a central part in the transfer of cations during eggshell calcification. © 1973.
Note:
Related Files :
45Ca
85Sr
Animal
Blood
Calcium Isotopes
Chickens
Gallus domesticus
metabolism
Oviducts
proteins
Strontium
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/0300-9629(73)90382-4
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
22398
Last updated date:
21/08/2022 07:45
Creation date:
16/04/2018 23:51
Scientific Publication
85Sr/45Ca discrimination by the active shell gland of the fowl
44
Simkiss, K., Department of Zoology and Comparative Physiology, Queen Mary College, London E.1., UK
Hurwitz, S., Animal Science, Volcani Centre, P.O.B.6, Bet Dagan, Israel
Bar, A., Animal Science, Volcani Centre, P.O.B.6, Bet Dagan, Israel
85Sr/45Ca discrimination by the active shell gland of the fowl
1. 1. A mixture of 85Sr and 45Ca was injected into the veins of laying hens and the 85Sr/45Ca ratio of plasma, shell gland mucosa and eggshell were measured. 2. 2. There is a discrimination against strontium in the body and the 85Sr/45Ca ratio of the plasma rises progressively. 3. 3. The discrimination against strontium is only 1·5 times that of calcium in the passage from plasma to eggshell. 4. 4. Calcium binding protein is present in the shell gland but its formation constant for calcium is about seven times that of strontium and it is not, therefore, considered to play a central part in the transfer of cations during eggshell calcification. © 1973.
Scientific Publication
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