[γ射线辐照对肉鸡存活率、生长及生产性能的影响]
[Effects of gamma-irradiation on survival, growth and productivity of broiler chicken].
作者信息
Astasheva N P, Annenko v B N, Khramtsova L K, Finov V P
机构信息
Russian Institute of Agricultural Radioligy and Agroecology, Obninsk, 249030 Russia.
出版信息
Radiats Biol Radioecol. 2004 Jan-Feb;44(1):43-6.
In experiments with broiler chicken the influence of gamma-irradiation (137Cs) to survive and productivity of meat poultry was studied. LD50/30 increased from 10.0 to 18.7 Gy with increasing of the age of the irradiated chicken from 3 to 40 days and reduced from 18.3 to 11.9 Gy with increasing of a dose rate from 1.0 to 40.0 Gy/h. As a rule, death of chicken was observed between 4th and 15th days after the exposure; the most early dates of poultry death were found at irradiation dose rate of 40.0 Gy/h. The exposure to doses of 8-20 Gy resulted in stunted growth; in comparison with control group the mass reduced by 22-32 g per each 1 Gy, lowering of meat productivity by 36%.
在肉鸡实验中，研究了γ射线（¹³⁷Cs）辐照对肉禽存活率和生产力的影响。随着辐照鸡的年龄从3天增加到40天，半数致死剂量（LD50/30）从10.0 Gy增加到18.7 Gy；随着剂量率从1.0 Gy/h增加到40.0 Gy/h，LD50/30从18.3 Gy降低到11.9 Gy。通常，在辐照后第4天至第15天观察到鸡死亡；在家禽死亡最早的日期是在剂量率为40.0 Gy/h的辐照条件下。暴露于8 - 20 Gy的剂量会导致生长发育迟缓；与对照组相比，每1 Gy体重减少22 - 32克，肉产量降低36%。
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