Security of diets of cattle of the Kirov region macro - and the microcells possessing antioxidant properties
The purpose of researches - an assessment of mineral structure of voluminous feeds of the Kirov region and the subsequent determination of security of diets of cattle macro - the microcells possessing antioxidant properties, at the expense of forages of own production. By results of laboratory researches of samples of hay, a silo, a forage and a green grass established that feeds prepared in the conditions of the agricultural enterprises are poor sulfur, copper and zinc: the minimum content of copper and zinc is noted in a northern agrosoil zone, and the smallest content of sulfur is established in east and southern zones. The content of iron, magnesium and manganese closely to optimum values. Defined the actual security with studied elements of base diets of milk cows with dairy efficiency of 16-20 kg of milk per day. Revealed that during the different periods of year deficiency of sulfur in diets reaches 24,9-26,5 %; copper - 28,1-29,3 %; zinc - 40,5-43,4 % and carotene - 8,9-18,8 %.