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KMID : 0359320020420030371
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Korean Journal of Veterinary Research
2002 Volume.42 No. 3 p.371 ~ p.376
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Relationship of Antibodies in Egg Yolk and Serum against Major Antigens of Bacterial Agents in Porcine Atrophic Rhinitis, Pneumonic Pasteurellosis and Pleuropneumonia
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Abstract
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Swine respiratory diseases have induced severe economic losses in swine industry worldwide. Therefore, several methods have been made and applied to prevent and control the diseases. However, these methods still have a problem and also induce side effects. Recently, the use of egg yolk antibody was introduced to control and prevent the diseases as one of new trials. As a study of using egg yolk antibody, antibody titers against several different antigens of major pathogens in swine respiratory diseases were compared in egg yolk and serum of hens immunized with those antigens. The titers were measured by ELISA using the antigens as coating antigens. The relationship in antibody titiers between egg yolk and serum were identified by analysis of variance for linear regression. Almost of antigens used in this study showed the high relationship in antibody titers between egg yolk and serum (r = 0.87 ∼ 0.93) even though the relationship in antibody titers against P. multocida A:3 IROMP was slightly low (r = 0.74)(P＜0.01). These results indicated that antibody titer in egg yolk could be useful to predict the titer in serum of chicken.
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