hrvatski

Učinak male dose gama-zračenja na koncentraciju kalcija i anorganskog fosfora u krvnoj plazmi tovnih pilića

In our previous paper [1-3] it has been showed that the iradaiation of chickens eggs before incubation by low dose gmma iradiation effects upon growth of the chickens hatched from irradiated eggs as well as upon activity of ALT and AST, and on the concentration of total proteins, glucose and cholesterol in the blood plasma of those chickens. Therfore in this paper an attempt was made to determine the effects of irradiation of eggs by low dose ionizing radiation on the 19th day of incubation upon the concentration of calcium (Ca) and inorganic phosphorus (P) in the blood plasma of chickens hatched from irradiated eggs. The eggs of a heavy breeding chickens (Gent, line COBB 500) were irradiated by a dose of 0, 15 Gy gamma radiation (source 60Co) on the 19th day of incubation. Along with the chickens which were hatched from irradiated eggs, there was a control group of chickens hatched from nonirradiated eggs. All other conditions were the same for both groups. After hatching, blood samples were taken on day 1, 3, 5, 7, 10, 20, 30. and 42. The concentration of Ca was determined colorimetricaly using &laquo ; ; ; ; ; Randox&raquo ; ; ; ; ; optimized kits, while the concentration of P was determined by &laquo ; ; ; ; ; Herbos dijagnostika&raquo ; ; ; ; ; Sisak (Hrvatska) optimized kits. The concentration of Ca in the blood plasma of chickens hatched from irradiated eggs was significantly increased on the first day, while it was decreased on the day 42. The concentration of P was decreased on the first day in blood plasma of chickens hatched from irradiated eggs. The fact that the concentration of both minerals in blood plasma of chickens hatched from irradiated eggs was significantly changed on the first day proves that the irradiation of eggs by low dose ionizing radiation on the nineteenth day of incubation had an effect on metabolisam of both minerals in those chickens.

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