Microelement provision of cows of the western region of Ukraine

Abstract

The article presents the results of research on the content of trace elements: Cobalt, Zinc, Copper and Manganese in the soils, fodder and blood of cows of the black and spotted Ukrainian breed in farms from the mountain, foothill and plain zones of the Western region of Ukraine. The western biogeochemical zone of Ukraine includes Zakarpattia, Lviv, Chernivtsi, Ternopil, Volyn and Rivne regions. It was established (mg per 1 kg of soil) that the amount of Cobalt was 0.5 mg/kg; Cuprum – 7.2; Zinc – 3.1; Manganese – 6.5; in the foothills – Cobalt – 0.6; Cuprum – 4.5; Zinc – 1.8; Manganese – 32; in the plain – Cobalt – 0.55; Cuprum – 5.0; Zinc – 1.5; Manganese – 39. During the analysis of the rations, it was established that the provision of other mineral substances did not meet the physiological needs. Thus, in the diets of cows from mountain, foothill and plain regions, an excess of Calcium, Magnesium, Potassium and Ferrum and a deficiency of Phosphorus, Sulfur, Zinc, Cobalt, Iodine and Copper were observed. Clinical studies of cows indicate the prevalence of trace element diseases in them. Anemia of visible mucous membranes and non-pigmented areas of the skin was recorded in cows, the number of erythrocytes in animals of the mountain zone was 5.7±0.29 T/l, in the foothills – 5.8±0.29, and in the plains – 6.2±0.30 T / l. The hemoglobin content in the blood of cows in the mountain zone was at the level of 97.0±5.40 g/l, in the foothills – 94.0±5.30, and in the plain zone – 98.0±3.70 g/l. Physiological values of the number of erythrocytes in the blood of cows range from 5.0–7.5 T/l, and the hemoglobin content – 95–125 g/l.