Features of feeding complete feed mixtures to a milking herd under tie-up housing

Abstract

Currently, agricultural enterprises are moving away from the use of pastures and green conveyors, since pasture green mass becomes coarser over a certain period of time thereby reducing its nutritional value; and the use of green conveyors, in addition to reducing nutritional value, causes feed stress in cows due to frequent changes in the type of feed. This provides a complete rationale for preserving feed in the required volumes in accordance with the scientific technology at the optimal stage in terms of nutritional value. When using diets in the form of complete feed mixtures, it is more convenient to ration feeding taking into account the animal requirements for nutrients at different physiological stages. It is also more convenient to monitor the completeness of feeding based on the presence and consumption of nutrients from the feed mixture. The factor that influences changes of the pH value in the rumen is also excluded. For example, when distributing concentrates on top of bulky feeds, the pH in the rumen of ruminants shifts towards acidosis which undoubtedly causes feed stress. However, when using complete feed mixtures, there are no sharp changes of the pH value. Therefore, the introduction of feeding technologies using complete ration feed mixtures under tie-up housing of cows is relevant. When using feeding technology in the form of complete feed mixtures during the first 100 days of lactation, the yearly milk production per cow amounted to 6,431.3 kg which was by 905.2 kg higher, and based on the entire milking herd by 994.9 tons which undoubtedly gave full substantiation for the use of differentiated feeding technology with complete feed mixtures. The average annual feed consumption per forage cow per day decreased by 4.5% which was associated with increased digestibility coefficient of the diet used in the form of a complete feed mixture. To reduce feed stress and increase the productive effect of diets under tie-up housing, and the efficiency of milk production, it is necessary to use differentiated feeding with complete feed mixtures.