Content of heavy metals in beef in dependence from biogeoprovintio of Yakutia
In recent years strengthening of technogenic impact of the person on ecosystems, increase in circulation of chemical elements in natural complexes, including in agrobiocenoses is noted. Significantly intake of heavy metals to the environment and on a food chain in a human body increased. It is known that 70% of all alien substances get into a human body with food therefore security of products acquires special sharpness and relevance now. According to statistical data, on average the inhabitant of the republic consumes up to 48 kg of meat (61% of norm) in a year. However from the total amount of the meat products consumed by the population, the specific weight of a product of own production is no more than 37%. At the same time a considerable part of meat products of own production is made in personal subsidiary farms. The main producers ofmeat in the republic are the livestock farms located in Leno-Amginsky and Vilyuysk areas. However the most part of the meat products used by the population arrives because of borders of the republic. The delivery geography to the republic of meat and meat products is very extensive and covers not only regions of Russia, but also foreign countries, such as Germany, France, Spain, the USA, Denmark, China and Brazil. It is established that accumulation and distribution of compounds of heavy metals in bodies and tissues of animals directly depends on an ecological situation of the region in which they are grown up. The greatest ecological danger to production of meat is constituted by such heavy metals as lead, cadmium and copper which collect in bodies and tissues of animals for a food chain: soil-water-plant-animal. So, quantity cadmium - the containing connections in bodies and tissues of the horses who are grown up in suburban farms of Yakutsk in 6 times more than in the zherebyatena from other territories of the republic. Besides, at horses from suburban farms ofYakutsk the considerable content of compounds of cadmium in pulmonary fabric was revealed that indicates an aero genic way of receipt of this toksikant to an organism of animals. In the conditions of Y akutia in an organism of the Yakut horses the main bodies stores of compounds of mercury, lead and cadmium are kidneys and a liver. In significant amounts lead collects also in a bone tissue. It is revealed that in an organism of horses cadmium accumulates in tens times more, than at cattle which is grown up in the same farms. At the same time the number of compounds of mercury, lead and cadmium in bodies and tissues of adult individuals are more, than at young growth. It demonstrates to constant receipt and accumulation of toksikant in an organism of animals and their slow removal