Seasonal content of heavy metals in the "soil-feed-milk-manure" system in horse husbandry in Kazakhstan.

Background And Aim: The quality of food, especially animal-based food, is crucial for human health. However, the quality of milk and other animal products has become an acute cause for concern in Kazakhstan. Technogenic dispersion of heavy metals (HMs) causes adverse effects on living organisms and creates unfavorable conditions for the existence of humans, animals, and plants.