LETHAL DOSE STUDIES WITH CATTLE EXPOSED TO WHOLE-BODY Co$sup 60$ GAMMA RADIATION
Sixty adult grade Hereford cattle were exposed in six groups to whole- body Co/sup 60/ gamma radiation at doses of 450 to 700 r. The LD/sub 50(30)/ was 543 r with a 95% confidence interval of 518 to 567 r. The estimated LD/sub 50 (30)/dose at the mid-line was 160 r. The mean survival time was 20.3 days. All deaths were associated with depression of the hematopoietic tissue and infection. The clinical syndrome was characterized by depresslon, generalized weakness, diarrhea, dyspnea, and hemorrhage. The hematological changes were comparable to those reported for calves and other large animals. (auth)
- Research Organization:
- UT-AEC Agricultural Research Lab., Oak Ridge, Tenn.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-16-001557
- OSTI ID:
- 4831041
- Journal Information:
- Radiation Research, Journal Name: Radiation Research Vol. Vol: 15
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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