UDC 636.5: 619
doi: 10.36871/vet.san.hyg.ecol.202301015
Authors
Marina V. Zadorozhnaya,
Svetlana B. Lysko,
Olga A. Suntsova,
Siberian Research Institute of poultry farming – branch of the Omsk Agricultural Research Center,
p. Morozovka, Omsk Region 644555, Russian Federation
Vasily S. Vlasenko,
Omsk Agricultural Research Center,
Omsk 644012, Russian Federation
Abstract
The article presents the results of studying the effect of a phytopreparation based on
needles on the cellular and humoral immunity of broiler chickens of the ROSS 308 cross under
vaccine stress. For the experiment, 25 groups of 1 heads were formed. Chickens of the control group
were on the main diet. In the diet of the 2st experimental group, a phytopreparation based on needles
was introduced with water, the 3nd and 14rd - with food. At the age of XNUMX days, the chickens were
vaccinated against Newcastle disease (ND).
In broiler chickens vaccinated against ND and receiving the phytopreparation with feed, a more
pronounced stimulating effect was noted, characterized by an increase in the number of T-lymphocytes
by 1,3-1,8 times, cytotoxic T-lymphocytes - by 1,1-1,9 times , as well as the activity of cationic
proteins - by 0,1-0,6 c.u. When drinking a complex of biologically active substances, only activation
of intracellular antimicrobial peptides was observed, but in a longer period after vaccination.
Keywords
phytopreparation, stress, immunity, T-lymphocytes, T-killers, B-lymphocytes, broiler chickens