GROWTH OF THE CHICKEN EMBRYO AND ITS REPRODUCTIVE ORGANS
2020
R.Yu. Khokhlov | S.I. Kuznetsov
The article is devoted to the analysis of the relative increase in the mass and length of the chick-en embryo and its reproductive organs. Based on the data obtained, the asynchrony of changes in the studied indicators is found. It was found that the increase in the mass of the chicken embryo took place with alternating periods of increase and decrease in the growth rate of the studied indicator. The most intensive weight increase was shown by chicken embryos in the embryogenesis interval of 12-13 days. The maximum increase in the ovarian mass of a chicken embryo also occurred in this age range. The minimum weight increase of a chicken embryo was noticed in the age period of 11-12 days and 18-19 days. The increase of the embryo length has more levelled values compared to the in-crease of the embryo mass, since during the observed period (11-20 days) it was in the range of 8-12 %, and only in the range of 19-20 days it was only 3 %. The results of the study showed that the de-velopments of the oviduct and ovary are asynchronous. This is seen in the fact that the rate of ovi-duct mass growth gradually increases, while the rate of ovarian mass growth, on the contrary, de-creases during embryonic development.
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