Effectiveness of using Energopromax feed supplement for cows during the first hundred days of lactation

Abstract

There are quite a few ways to solve the problem of protein deficiency. This is the selection of grain legume forage crops, expansion of sowing patterns for legume forage crops, the use of protein feed supplement, and the use of synthetic nitrogen-containing substances. In the practice of feeding cows, few people pay attention to protein fractions which ratio has a great impact on the physiological state of cows. For example, for highly productive cows, the following distribution of protein fractions should be used: microbial protein - 35%, protected protein - 45%, easily digestible protein - up to 15%, and acid-detergent protein - up to 5%. For example, sunflower press-cake contains 90% of rapidly digestible protein fractions, while in full-fat extruded soybeans, rapeseed and flaxseed cakes, the main share of fractions is digested in 2 to 10 hours or more, and in addition, the optimal content of protected protein is achieved. The deficiency of microbial protein content leads to decreased protein level in milk. Thus, the selection of protein raw materials for the composition of protein-vitamin-mineral concentrate taking into account the distribution by fractions is a very pressing problem. To increase milk productivity by 25-26% and the economic efficiency of milk production the preparation of the protein-vitamin-mineral concentrate EnergoProMax should be carried out taking into account the decomposition of protein fractions (full-fat extruded soybeans - 24%, a set of three oilcakes (sunflower, rapeseed, flax), 24% each, and mineral and vitamin premix Cowfit Immuno Fertil - 4%). The protein-vitamin-mineral concentrate EnergoProMax during the first hundred days of lactation should be added to the diet in the amount of 1.3 kg per head per day. The complete feed mixture differed in the protein level regarding dry matter by 10%, mainly protected protein by 29.6%, fat - by 8.6%.