Influence of trematode on chemical and physicochemical data cattle meat
The aim of this study was in analysis of фchanges in the chemical and physico-chemical parameters of cattle meat in the mono-and mikstinvazii. We researched 20 bull-calves in the result of helminthological research have been divided into 4 groups of 5 heads. Animals of the first group are intact (control), the second are infected with Fasciola hepatica, third Dicrocoelium lanceatum, and the fourth the association Fasciola with Dicrocoelium. From each carcass were selected average samples of different muscle groups: m.deltoideus, m.longissimus, m.biceps femoris, as well as the myocardium. The results showed that the chemical composition of meat depends with infestation of animals. So solids content of the experimental groups was significantly (P <0.001) is lower than of intact animals. Moreover, the maximum reduction of this parameter in the third experimental group of 3.79% is connected with breach of protein metabolism. One of the most important parameter is the coefficient of protein to fat in the muscle tissue. He is lowered in all experimental groups, but the lowest rate (5,21 ± 0,21) was a significant (P <0.001) at dicrocoelosis monoinvazii. Even with association helminths the ratio protein to fat in the muscle was 0.84 units higher than the third experimental group, which may be due to decreased activity of proteolytic enzymes (cathepsins) of muscle fibers due to the delay their release from the limiting of muscle structures fiber (lysosomes) for mikstinvazii. Invasion with trematodes influence on chemical composition, physica-chemical properties and impact on nutritional value of meat which is accompanied by significant (P <0.001) decrease in calories to 52,49-66,47 kG, as well as the accumulation of products of decomposition of organic substances.