Blood morphological composition of lactating Holstein cows when feeding Profort enzyme-probiotic product

Abstract

For effective dairy cattle breeding high-yielding specialized Holstein dairy cattle is used on livestock farms of the Altai Region. However, with increasing milk production, animals often have health problems which negatively affect their physiological condition and, as a consequence, the quality of milk produced. Under the conditions of year-round uniform feeding typical for many large commercial farms, fodder quality decreases during long storage which leads to metabolic disorders and deterioration of animal health. In order to maintain and improve metabolism, increase the productive performance of animals, enzyme-probiotic products are used; they are complexes of enzymes and live cultures that improve digestion, increase fodder nutrient consumption, strengthen the immune system and preserve animal health. The research goal was to study the dynamics of blood morphological composition of lactating Holstein cows when adding the enzyme-probiotic feed supplement Profort (OOO Biotrof) to the diet. The use of the feed supplement increased the RBC count by 13.9% (P ≤ 0.05), hemoglobin level - by 7.1% (P ≤ 0.05), hematopoiesis stability and contributed to the preservation of structural and functional properties of erythrocytes as compared to the animals of the control group.