E3S Web Conf.
Volume 175, 2020XIII International Scientific and Practical Conference “State and Prospects for the Development of Agribusiness – INTERAGROMASH 2020”
|Number of page(s)||8|
|Section||Livestock and Veterinary|
|Published online||29 June 2020|
Ecogenesis of organs and tissues formation of in cattle in the embryonic period
Bashkir State Agrarian Institute, 19, Rihard Zorge St., 450059, Ufa, Russia
* Corresponding author: firstname.lastname@example.org
The article gives a comparative aspect of the organism development periodization, depending on the gender and age of the fetus. It was established that in the individual development of animals, there is a specific biological regularity of periodicity. It is indicated by the unequal growth of individual organs and the organism as a whole at different stages of ontogenesis, age-related features in the growth of individual parts and proportions of the body, as well as changes in the requirements of a growing organism to living conditions. At different stages of animal embryogenesis, there is a rather short period of a sharp increase in metabolism, as well as the intensity and usefulness of self-renewal, which to some extent, is an indicator of the growth rate of the fetus depending on gender. Pituitary and serum gonadotropins were used to induce ovulation of cows. As a result, in the group where pituitary gonadotropin was used, 87.5% of cows with pregnancy of 91.7% showed desire, 75% of serum gonadotropin with 87.5% of pregnancy. An analysis of the obtained data shows that in the second stage of embryonic development, the intensity of the formation of internal organs slows down, while the intensity of increasing the live weight of the fetus increases, regardless of groups.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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