The peculiarities of transfer of technogenic radionuclides from feeding milk and meat of the cows at their pasture keeping in the south of Tyumen region

Nowadays the main role in additional radiation of an or- ganism of farm animals by radionuclides of artificial origin is played by strontium-90 and caesium-137, and also natural lead-210 which get to trophic power-supply circuits of cattle after using the products of processing of hydrocarbonic raw materials and fertilizers in agrarian sector. The accumulation of radionuclides in the organism of cattle and their transition to meat and dairy production depend on physiological condi- tion of animals, their efficiency, structure of the diet and its balance of mineral elements, and also on many other factors. The work purpose was studying the features of transition of radioactive isotopes of strontium, caesium and lead to meat- and-milk production from a daily set of forages of dairy cows at summer pasturable keeping on gray forest soil of Ishim area. The researches of forages and meat-and-milk produc- tion were carried out in 2002-2010 in Abatsky Region of a forest-steppe zone of the South of Tyumen Region...