Increasing the nutritional value of a complete feed mix for cows during the first hundred days of lactation by using the Vinassa feed supplement

Abstract

Currently, most studies in the field of high-yielding cow feeding are aimed at protein and mineral nutrition. However, little attention is paid to creating optimal rumen microflora which also requires readily available nutrients. It is primarily the rumen microflora that determines the health and milk producing ability of cows. For highly productive cows whose diet is rich in concentrates, it is necessary to take into account the nutrients that optimize the rumen microflora: available protein, sugars and pH-value. One of the feed supplements being of scientific and practical interest is the feed supplement Vinassa. This supplement is a concentrated liquid feed with high content of nutrients obtained in the production of yeast Saccharomyces cerevisiae. Due to the chemical composition of the feed supplement Vinassa, salivation is stimulated, thereby a natural buffer is created. Due to its positive properties, the feed supplement Vinassa is an effective means for balancing diets, especially if the feeds were made at a later date with high amount of fiber and reduced concentration of nutrients as protein and easily digestible sugars. Therefore, the study of the chemical composition, productive action as well as the method of introducing the feed supplement Vinassa to a dairy herd is quite relevant. As a result of the increased nutritional value and palatability of the complete feed mix, the increase of milk producing ability during the first 100 days of lactation made 15%, and the additional profit from the milk sales made 766,098.40 rubles. To increase the nutritional value of the complete feed mix for cows during the first 100 days of lactation, it is necessary to use the feed supplement Vinassa in a dose of 5% of the weight of the concentrated feed used in the daily diet.