Histological indices of broiler chickens muscles when added to the diet of vitaminized complex «Nitamin»

The article presents the results of studying the effect of vitaminized complex “Nitamin” on histomorphological parameters of muscle tissue of broiler chickens cross “Cobb-500”. As a result of the study it was found that the use of vitaminized complex “Nitamin” according to the established scheme in the dosage of 1 ml / l favorably affects the live weight gain of broiler chickens. It is reliably established that chickens from the experimental group prevailed in weight over the control group by 6,5% on the 35th day of life. Histologic study of cardiac tissue showed that the studied preparation does not cause pathologic changes. Histological study of quadriceps femoris muscle allowed to establish that the muscle tissue of chickens from the experimental group has clear boundaries between fibers, transverse striation is well expressed. In addition, morphometry of this tissue allowed us to estimate the diameter of muscle fibers, the thickness of their bundles, the thickness of endomysium and perimysium. We noted that the diameter of muscle fibers and the thickness of their bundles prevailed in the experimental group over the control group by 12,77% and 8,35%, respectively. The obtained data indicate the advisability of adding the vitaminized preparation “Nitamin” to the diet of broiler chickens.