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OJVRTM
Online Journal of
Veterinary Research©
Volume 19(4): 254-260,
2015.
Effects
of quercetin on immunological responses of Ross broiler
chicks induced by tert-BHP
Morvarid Rezvani1, Mohammad Chamani1*, Parvin Showrang2, Ali Asghar
Sadeghi1
1 Department of Animal
Science, Faculty of Agriculture and Natural Resources, Tehran Science and
Research Branch, Islamic Azad University, Tehran, 2Nuclear
Agriculture Research School, Nuclear Science and Technology Research Institute,
Atomic Energy Organization of Iran, Karaj, Iran.
ABSTRACT
Rezvani M, Chamani M, Showrang P, Asghar Sadeghi A., Effects of quercetin
on immunological responses of broiler chicks induced by tert-BHP,
Onl J Vet Res., 19(4): 254-260, 2015. Groups
of Ross broiler chicks were given tert-BHP, tert-BHP with quercetin
(15mg/kg) or nothing (controls). Chicks had been vaccinated against avian infectious bronchitis (IB)
and infectious bursal disease (IBD or Gumboro) and
evaluated for antibody titers against the diseases by ELISA. Results showed that 0.2 mmol/kg body weight tert-BHP
caused a significant increase in malondialdehyde
(MDA) levels (P<0.05).
Present findings indicated that oxidative stress induced by tert-BHP
caused a marked suppression in antibody responses against IB and IBD at 28 days of age. The heterophil
to lymphocyte ratio (H/L) of peripheral blood was decreased in chicks given quercetin (P<0.05).
Results suggest that quercetin may have elevated viral antibody response and decreased the H/L
ratio and MDA levels in oxidative-stressed broilers.
Keywords: Broiler Chick, Quercetin, Immune responses, tert-BHP.
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