Организация кормления и уточнение некоторых детализированных норм кормления (сухое вещество, сырой протеин, калий) коров в условиях высокотехнологичного молочного комплекса

The work considers the necessity for a scientific approach to organizing feeding highly productive cows. The purpose of the research is to review and clarify some detailed feeding standards (dry matter, crude protein, potassium) of cows in the conditions of high-tech dairy complexes of the EkoNivaAgro company groups. We carry out control over the dry matter content in the organization of normalized feeding at the following stages: 1) in the green mass of alfalfa when laying it on the haylage in order to obtain high-quality feed; the drying of the mass is carried out taking into account the Ditter - Shpara formula up to 36-42%; 2) in the main feed (silage, haylage) at the time of loading individual feeds into the mixer to determine the amount offeed to be laid; 3) in mono mixture in order to determination of the digestibility of dry matter by cows. Protein plays a very important role in complete animal nutrition. Until recently, a crude protein level of 18.5% of dry matter was maintained as standard in the diets of the working group of milking cows D1 on the farm, while we noted an elevated level of ketone bodies in the animals’ blood. When crude protein was decreased to 16.5% of dry matter, by reducing the proportion of rapeseed meal and replacing it with corn, the level of ketone bodies normalized. Potassium is one of the most important elements in the body and should be supplied with feed daily as it is retained in the body for a short time. During the summer heat, increased sweat and urine excretion is accompanied by increased excretion of potassium from the body. A suitable source of potassium is the medium salt К2СО3 (potash). The level of potassium in diets without potash is 1.45% and with potash in summer increases to 1.77% of the dry matter of the diet, which is normal and consistent with the available literature data.