Grabchak Z. Structurally functional peculiarities of blood vessels and tissues components of central organs immunogenesy of the calves

The object - growth and development of central organs of immunnogenesy of calves depending on their morphofuntional status at birth. The aim - to define peculiarities of a structure and volume of blood vessels, tissues components of immunogenesy central organs of red steppe breed calves depending on their morphofuntional status at birth. Methods - animal science zootechnical, morphological (macro- and microscopic) and statistical. The novelty - for the first time is carried out complex research of structurally functional features of blood vessels and tissues components of central organs of immunnogenesy of the calves, which at birth had average morphofuntional status and the analysis of their growth and development in the period of ontogenesis is carried out. It is stated that in calves of average morphofuntional status in prenatal period of an ontogenesis there were processes of a growth inhibition of central organs of immunnogenesy and all organism. It appears by smaller indices of their mass and measurements of parts of the body, of absolute mass of a skeleton, femoral bone, breast bone, last rib, skeleton of a tail, thymus gland and their linear measurements in comparison with such indices of daily calves of high morphofuntional status. It is shown that in prenatal period of an ontogenesis of calves of average morphofuntional status the development of central organs of immunnogenesy was depressed too. In osteal organs it is characterized by decreasing of intensity of processes of an ossification, transformation of osteoblastic bone marrow in red and reduction of the blood vessels volume, and in a thymus gland - by decreasing of blood vessels and lymphoid components of thymus. Growth and development of central immunogenesyorgans of calves, which at birth had average morphofuntional status in the period of neonatale happens on common biological legitimacies. Thus fixed, that intensity of processes of the processes of growth and development of the called above organs is reduced. That leads decreasing of their functional activity. Only in 5-10-day age they become of those values, which were peculiar to one-day calves of high morphofuntional status. The results of researches - will be utilized in the educational process and research work. The branch - veterinary medicine.