In this study, the elfect ol heat stress on humoral immunity against Newcastle (ND) and Inleclious Bronchitis
(IB) antigens was determined in broiler chicken after vaccination ol ND and IB. Totally, 40 broiler chicks were divided
into 2 groups as experimental and controL. The broilers were mucosally and orally vaccinated with ND and IB
vaccines at 1 and 17 days, respectively. Then they were treated at 38-39°C ol heat stress between 15th and 30th
days. Blood samples were collected Irom experimental groups at 10 days intervals, after vaccinalion. The titres ol antibodies were determined against ND by Haemagglutination-Inhibition (HI) test and IB by ELISA. Decreased titres of
antibodies against ND and IB antigens at 40 days samples were statistically lound to be important in animals treated
heat stress than controls.
Diğer ID | JA69YD64YD |
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Bölüm | Araştırma |
Yazarlar | |
Yayımlanma Tarihi | 1 Mart 2007 |
Yayımlandığı Sayı | Yıl 2007 Cilt: 23 Sayı: 1 |