| Issue |
E3S Web Conf.
Volume 203, 2020
Ecological and Biological Well-Being of Flora and Fauna (EBWFF-2020)
|
|
|---|---|---|
| Article Number | 01030 | |
| Number of page(s) | 10 | |
| Section | Veterinary Well-Being of Fauna | |
| DOI | https://doi.org/10.1051/e3sconf/202020301030 | |
| Published online | 05 November 2020 | |
Cell-mediated transfer of immune protection factors to newborn calves
1 Primorskaya State Academy of Agriculture, pr. Blyukhera, 44, Ussuriysk, Primorsky Territory, 692510, Russia
2 Innovative University of Eurasia, ul. Lomova, 45, Pavlodar, 140000, Kazakhstan
3 Far Eastern Federal University, ul. Sukhanova, 8, Vladivostok, Primorsky Territory, 690090, Russia
4 Ussurian Veterinary Station of Animal Diseases Control, ul. Kolkhoznaya, 81, building A, Novonikolsk, Primorsky Territory, 692537, Russia
* Corresponding author: repsh_78@mail.ru
Immunocompetent cells in the blood, colostrum (milk) of cows and in the blood of newborn calves obtained from these animals give grounds to assert that newborn calves acquire cellular immune protection due to the intake of colostrum. With the colostrum of cows, not only nonspecific, but also specific immunocompetent cells enter the newborn’s body. The creation of colostral immunity is determined by the presence of a sufficient number of protective factors in colostrum and increased permeability of the intestinal histohematogenous barrier, which is capable of passing large immunoglobulin bodies and lymphocytes unchanged in the first 24-36 hours of life. A large number of specific immunocompetent cells found in colostrum is directly related to their increased content in the blood of these animals. The strength of the immune response depends on the preservation of immunological memory cells in the blood of revaccinated animals, some of which are represented in the pool of brucellin-reactive T-lymphocytes.
© The Authors, published by EDP Sciences, 2020
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