Evaluation of the effect of a phytobiotic rosehip supplement on the immune status parameters of young Loman Brown chickens
Volume 20 • Issue 1
Zalyubovskaya Elena Yu., Mansurova Mariya S., Ostyakova Marina E.
DOI: https://doi.org/10.22450/1999-6837-2026-20-1-44-53
Published on: 11.03.2026
The analysis of the immunomorphological status of Loman Brown egg cross chickens was carried out when a phytobiotic supplement from rosehip fruits was added to the diet. As a result of the experiment, an increase in bactericidal activity was found by 39.9% in the second experimental group, where the additive was added to the diet at a dose of 4%. In the first experimental group, the indicator increased by 14.4%. According to the level of lysozyme activity, the data of the control and the first experimental group were at the same level, and the use of an additive in a dosage of 2% had no effect as such. At the same time, the chickens of the second experimental group, which received a higher dosage of the supplement, demonstrated significantly higher (p <0.05) lysozyme activity by 13.1% from the control and 12.5% from the first experimental group. Phagocytic activity in chickens in experimental first experimental group was higher by 28.6% compared with the control, whereas in the second experimental group, with an increase in dosage, the indicator was reduced by 7.1% relative to the control value. The phagocytic index in the first and second experimental groups was significantly (p <0.05) higher than in the control group by 28.5 and 51.7%, respectively. The phagocytic number in the first experimental group was significantly (p <0.01) higher by 71.6%, in the second group by 36.9% compared with the control. There was an increase in the number of circulating immune complexes in the first experimental group by 6.5%, whereas in the second experimental group, the decrease in this indicator compared to the control group was 11.0%. The maximum increase in the titer of normal poultry antibodies was recorded in the experimental groups, in the first experimental group this indicator increased by 20.0%, while in the second experimental group there was a statistically significant (p <0.05) increase of 25.0%.
Zalyubovskaya E. Yu., Mansurova M. S., Ostyakova M. E. Evaluation of the effect of a phytobiotic rosehip supplement on the immune status parameters of young Loman Brown chickens. Dal'nevostochnyi agrarnyi vestnik. 2026;20;1:44–53 (in Russ.). https://doi.org/10.22450/1999-6837-2026-20-1-44-53.
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