Микроморфологическая характеристика поверхностной грудной мышцы у кур пород Куланги и Малайская бойцовая

Abstract

On the basis of histological and micromorphometric studies, the general regularities and breed features of the structural organization of the superficial pectoral muscle in chickens of the meat production direction Kulangi and Malajskaya bojcovaya hens are presented. The age of the studied individuals was 1 and 29 days. The study evaluated the structural and morphometric parameters of not only the muscle fibers, but also the connective tissue component of the studied muscle. It is shown that representatives of fighting breeds of the meat direction of productivity are characterized by general patterns and distinctive features of the structure of the muscle tissue of the superficial pectoral muscle. The similarity of all the studied samples of muscle tissue in terms of area was revealed, which indicates that this feature has optimal values and is stable during ontogenesis. At the same time, the parameters of the thickness of the endomysium, peremysium, muscle fibers and their bundles had variable values in all the studied bird breeds on the 1st and 29th days of ontogenesis. The data obtained indicate the presence of both common morphological features of muscle tissue, genetically determined and stable regardless of productivity, and variable, which can change under the influence of selection. The results of the research are important for veterinary biology, industrial poultry farming, veterinary and sanitary expertise and can be used to improve the methods of breeding work.