FUNCTION OF QUAIL IMMUNE SYSTEM AT DIFFERENT PERIODS OF POSTNATAL ONTOGENESIS
Abstract
In the article are given results concerning main morphometric characteristics of immunogenesis organs in “Pharaon” breed of quails of industrial raising during different periods of postnatal ontogenesis. It is established that highest numeric values of relative mass index and thymus, Fabricius bursa, spleen of quail species «Pharaoh» in 5 days age. It was found that the vast mass of the thymus quail increased to 33 days of life, Fabricius bursa – up to 53 days of life and spleen – up to 240 days of life. It was established that with the egg (53 and 75 day life) and 240–day old quail in the relative weight and thymus index decreased five times (p < 0,01 – 0,001) seminary Fabricius bursa – three times (p < 0,05 – 0,01). It was investigated that the relative reduction of mass and spleen index in three quails from 20 to 240 days of life. The data indicate a change of immunological reactivity quail in different age periods, especially in the productive oviparous period and the beginning age involution of the thymus, Fabricius bursa. The possible reduction of the seminary index below 1.0 in quails from 75 to 240 days of life may indicate suppression of B–immunity, that reduce the formation of B – lymphocytes. The reduction of the relative weight and spleen index quail tripled from 20 to 240 days of life on the background of declining same period of the thymus and Fabricius bursa may indicate a compensatory reduction of the organism poultry.
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References
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