DOI: 10.26155/vet.zoo.bio.202005002
UDC 636.5: 611.73.013
Authors
G. V. Kondratov
Associate Professor, Department of Anatomy and Histology
of Animals named after Professor A. F. Klimova, Moscow
State Academy of Veterinary Medicine and
Biotechnology – MVA by K. I. Skryabin,
Moscow, Russian Federation
V. V. Stepanishin
Associate Professor, Department of Anatomy and Histology
of Animals named after Professor A. F. Klimova, Moscow
State Academy of Veterinary Medicine and
Biotechnology – MVA by K. I. Skryabin,
Moscow, Russian Federation
S. G. Kumirov
Associate Professor, Department of Anatomy and Histology
of Animals named after Professor A. F. Klimova, Moscow
State Academy of Veterinary Medicine and
Biotechnology – MVA by K. I. Skryabin,
Moscow, Russian Federation
Abstract
On the basis of histological and morphometric methods, the general laws and features of histogenesis of skeletal muscles of farm birds were studied. The histological and morphological characteristics of skeletal muscle (on the example of the pectoral) in chickens of the Kulangi and Andalusian blue breeds at various stages of embryogenesis, reflecting the features of their differentiation, are presented. The skeletal striated muscle tissue of the studied bird is subject to the general principles of myogenesis inherent in most animal species and acquires signs of a definitive structure. By the fourteenth day of embryonic development, bundles of muscle fibers are formed, and by the time of chickens hatching, transverse striation is detected in the muscle fibers. The area of muscle tissue also increases in proportion to the age of the bird. The concept of morphogenesis of the skeletal muscle of the studied chicken breeds is presented, according to which myogenesis is activated earlier in the representatives of the Kulangi breed than in the Andalusian blue.
Keywords
skeletal muscle, chicken embryos, myogenesis, Kulangi, Andalusian blue, pectoralis major muscle.
