CHANGES IN CALCIUM-Sr$sup 90$ DISCRIMINATION WITH AGE IN YOUNG MINIATURE SWINE
Miniature female pigs nine months of age were placed on daily Sr/sup 90/ feeding at levels of 1, 5, or 25 mu c per day. The females were bred and immediately after birth a number of offspring were killed. The majority of the offspring, however, were allowed to remain with their dams until weaning at six weeks of age, at which time additional animals were killed. When females of the F/sub 1/ generation reached nine months of age, they were bred and gave birth to an F/sub 2/ generation. Values for 3-month-old animals were essentially the same as those for 6-month-old animals. At 3 and 6 months, no difference was observed between values of F/sub 1/ and F/sub 2/ generations. The data indicate a lessened discrimination against Sr/sup 90/ relative to calcium in the young. The ratio of Sr/sup 90//Ca/sup 45/ for the diet observed at weaning was greater than 0.5, while after 63 days of feeding, it was less than 0.3. Data are tabulated. (P.C.H.)
- Research Organization:
- General Electric Co., Richland, Wash.
- NSA Number:
- NSA-17-013940
- OSTI ID:
- 4750652
- Report Number(s):
- HW-SA-2790; 0024-3205
- Journal Information:
- Life Sciences (U.S.) Divided into Parts I and II, Journal Name: Life Sciences (U.S.) Divided into Parts I and II Vol. Vol: No. 12; ISSN LIFSA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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