Experimental study for the irradiation effect of x-ray on the hatching process of fertilized eggs

X선 조사가 닭 유정란 부화과정에 미치는 영향

  • 전병규 (대구보건대학교 방사선과) ;
  • 여진동 (서라벌대학교 방사선과)
  • Received : 2013.10.07
  • Accepted : 2013.12.05
  • Published : 2013.12.31


This study examined the irradiation effect of high energy x-rays on the hatching process of fertilized eggs, particularly with regard to malformation and blood cells change. The experimental groups were five day old fertilized eggs irradiated with x rays at doses of 5, 7.5, 10 Gyusing alinear accelerator. The control group was not irradiated. After three weeks, hatched chicks were sacrificed and examined for blood sampling. The survival rate of the x-ray irradiated groups were significantly lower than that of the control group (46.7vs 80%). The malformation rate of the experimental groups was60%, whereas no congenital malformations were observed in the control group. The experimental groups had a significantly higher malformation rate. The types of malformation were left wing defect, proptosis, microcephaly, cervical spine, and feet anomaly. The incidence of malformation increased with increasing radiation dose. The white blood cell count of control group and eachexperimental groups (5 and 7.5 Gy) were 87.64, 100.76 and 81.42 ($10^3/{\mu}L$), respectively. X-ray irradiation of 5 day old chick embryos increased the rate of death and malformation significantly.The malformations were estimated to have occurred by chromosomal abnormalities. Further genetic studies will be needed to confirm the correlation between high energy X-rays and the cause of malformations.


Fertilized eggs;Malformation;Incubator;Linear accelerator


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