DETERMINATION OF CADMIUM AND LEAD CONTENT IN ROUGHAGE AND SUCISCUIT FEED

Chronic intake of cadmium and lead into the body of animals during livestock farming in areas with high levels of HM in the environment is relevant worldwide. Toxic metals are not biodegradable in the environment, and their synergism and migration further exacerbate the problem. Obtaining safe products and assessing the potential danger of cadmium and lead accumulation in them is important in many regions of the Russian Federation. We examined 36 samples of silage, haylage, hay, etc. from the Moscow, Vladimir, Ryazan, Ivanovo regions and the Republic of Mordovia. The lead level was in the range of 0.07…3.32 mg/kg. The maximum content was 3.32 mg/kg (haylage from the Ryazan region). significantly lower than the MRL (5 mg/kg). The average content was 1.28 mg/kg and did not differ significantly by region, except for the Ivanovo region, where it was 3 times lower than the average. The average lead content in haylage was significantly higher than in silage. With a fairly wide spread of data, from 0.038 to 0.325 mg/kg, the average cadmium content was 0.169 mg/kg, no reliable differences in the cadmium content in rough and succulent feeds by region were found. The maximum cadmium level in a sample of corn silage from the Vladimir region was at the MRL level of 0.325±0.023 mg/kg.