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Effect of radiation on metabolism of selected minerals in cattle

Journal Article · · J. Anim. Sci., v. 38, no. 1, pp. 178-185
OSTI ID:4309422
Zinc, Cu, Ca, Mg, and Fe contents of plasma and/or erythrocytes of steers were studied following exposure of the steers to either whole-body gamma irradiation, BETA irradiation of the gastrointestinal tract, BETA irradiation of the skin, or all combinations of the above. Gastrointestinal (GI) irradiation reduced plasma Zn concentrations 1, 2, and 3 weeks after irradiation, but no detectable change occurred in the erythrocyte concentration of stable Zn. The uptake of /sup 65/Zn by erythrocytes from control steers averaged about 5%; whereas the uptakes of the GI- and skin-irradiated steers exceeded l0%. Hypoferremia and hypercupremia accompanied the injury and infection produced by GI and skin irradiation. The decline of plasma Ca and Mg levels following GI irradiation appeared to be the result of radiation-induced anorexia, as control animals with a restricted feed intake had a similar reduction in plasma Ca and Mg. (auth)
Research Organization:
UT-AEC Agricultural Research Lab., Oak Ridge, TN
NSA Number:
NSA-29-027077
OSTI ID:
4309422
Journal Information:
J. Anim. Sci., v. 38, no. 1, pp. 178-185, Journal Name: J. Anim. Sci., v. 38, no. 1, pp. 178-185; ISSN JANSA
Country of Publication:
United States
Language:
English