The influence of the carnitine-containing complex on the morphostructure at the muscle tissue of Japanese quail

Abstract

The quality of meat is determined by the set of nutrients that the poultry receives. It's possible to assess the effect of feed additives on poultry meat products by studying the morphostructure of muscle tissue. The carnitine-containing complex was administered to quails of the experimental groups throughout the entire growing period from 2 to 80 days of age. For groups 2 and 3, the drug was drunk for 5 consecutive days with a 10-day interval at a dose of 0.25 ml / l and 0.5 ml / l, respectively; 4 and 5 groups - at a dose of 0.25 ml / l and 0.5 ml / l for 5 days with a 5-day interval, group 1 served as a control and received clean drinking water. For morphological examination, samples of muscle tissues of the superficial pectoralis and biceps femoris were prepared according to a standard protocol, measurement and photographic documentation were performed, followed by statistical data processing. As a result, in the experimental groups, there was a tendency to an increase in the cross-sectional area of the muscle fiber of the superficial pectoral muscle, the fibers are more intensely colored, the nuclei are brightly basophilic, well contoured compared to the control. In the study of the biceps femoris in the experimental groups, an increase in the cross-sectional area of the muscle fiber and a decrease in the thickness of the internal perimisia between the beams of the 2nd order were also noted, which indicates a positive effect of the carnitine-containing complex on the development of muscle fibers of the pectoral and femoral muscles. In group 4, the cross-sectional area of the muscle fiber of the superficial pectoral muscle reached 431.67 mkm2, the thickness of the endomysium was 4.87 mkm, and the internal perimisia was 12.54 mkm; the cross-sectional area of the muscle fiber and the thickness of the internal perimisium of the biceps femoris reached 625.24 mkm2 and 31.02 mkm, which significantly distinguishes the development of the studied muscles from similar indicators in other groups of quails and allows us to recommend this scheme for growing quails and obtaining dietary products.