Fedorova N L, Markelov B A
Kosm Biol Aviakosm Med. 1978 Jan-Feb;12(1):42-7.
During three years 36 male dogs were exposed to chronic irradiation with a total dose of 21, 62 and 125 rad per year. tin addition to this irradiation at a dose rate of 62 rad per year, some dogs were also exposed to acute irradiations three times a year with a dose of 42, 8 and 8 rad and 42, 42 and 42 rad (at the combined irradiation the total doses were 120 and 190 rad per year). The study of the functional activity of testes gave the following results. The males that were chronically irradiated with a total dose of 125 rad per year showed hypospermia after 8-10 months of the experiment. The dogs that were exposed to combined irradiation displayed oligospermia after 5-7 months of the experiment which persisted throughout the period of 3 years. These effects depended on the dose rate, total dose and scheme of irradiation.
在三年时间里，36只雄性犬每年接受总剂量为21、62和125拉德的慢性照射。除了以每年62拉德的剂量率进行这种照射外，一些犬还每年接受三次急性照射，剂量分别为42、8和8拉德以及42、42和42拉德（在联合照射时，每年的总剂量分别为120和190拉德）。对睾丸功能活性的研究得出了以下结果。每年接受总剂量125拉德慢性照射的雄性犬在实验8至10个月后出现精子减少症。接受联合照射的犬在实验5至7个月后出现少精子症，且在整个3年期间一直持续。这些影响取决于照射剂量率、总剂量和照射方案。
