DOI: 10.36871/vet.zoo.bio.202104001
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
Histological and morphological characteristics of skeletal muscles in chickens of the meat direction of productivity Smena-8 and egg direction of productivity Andalusian blue on the 20th and 29th days of postembryonic development are presented. The skeletal striated muscle tissue of the studied bird obeys the general principles of myogenesis inherent in most animal species and is characterized by signs of a definitive structure. It is shown that on the 20th and 29th days of postembryonic ontogenesis in the Smena-8 cross and the Andalusian blue breed, the quadriceps femoris is ahead of the superficial pectoral muscle in terms of the thickness of muscle fibers. The thickness of the endomysium and perimysium in the connective tissue component of the superficial pectoral muscle in chickens of both directions of productivity prevails over that in the quadriceps femoris. Based on the obtained morphometric parameters of the structure of muscle fibers, the concept of myogenesis of skeletal muscles in agricultural poultry of egg and meat productivity directions is presented.
Keywords
skeletal muscle, superficial pectoral muscle, quadriceps femoris, myogenesis, Smena- 8, Andalusian blue.
