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Scientific journal
Scientific Review. Biological science
ISSN 2500-3399
ПИ №ФС77-57454
ISSN 2500-3399
ПИ №ФС77-57454
DYNAMICS OF TITLE ANTIBODIES IN THE SERUM OF CROSS BROILERS “SMENA-7” UNDER THE INFLUENCE OF IMMUNOMODULATORS “GAMAVIT” AND “FOSPRENIL”
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In this paper we consider the dynamics of post-vaccination titers of antibodies against the causative agents of infectious bronchitis (IBV), infectious bursal disease (IBD) and Newcastle disease (ND) in cross of broiler “Smena-7” by OOO “Poultry “Snezka”” Bryansk region in the epidemiological well-being in the background of the influence of drugs “Fosprenil” and “Gamavit” in prophylactic doses. Reduction of maternal antibodies detected and the appearance of its own. Raises the question of whether vaccination at an early stage of development. According to the study of antibody titers against the three major pathogens we see about one and the same picture , from the moment of hatching protect the mother’s antibodies , which by the 15th day greatly reduce its concentration until the 25th-30th day, in all probability , do not begin to produce its own antibodies . In the result, a “ titration pit” (15-25 days) - the interval at which birds are most susceptible to disease in the case of an unfavorable epidemiological situation, according to the agents in the economy . Reliable data on the increase in antibody titers when using drugs “Fosprenil” and “Gamavit” there are only 10 and 15 of the Titles of NB night and by day 35 titers This conclusion raises the question of whether to vaccinate early in life , as the immune system is not up to end formed and provide protection of maternal antibodies.