Production and characterization of egg yolk antibodies against bovine alimentary tract pathogens
| Autor: | O. Sitnik, Wiesław Kopeć, Teresa Skiba, Paulina Jawor, Tadeusz Stefaniak |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Rotavirus
Time Factors food.ingredient Gastrointestinal Diseases Immunoglobulins Antibodies Viral Escherichia coli O157 medicine.disease_cause Microbiology food Immune system Immunity Yolk medicine Animals Coronavirus General Veterinary biology Egg Proteins General Medicine Antibodies Bacterial Vaccination Immunization biology.protein Cattle Antibody |
| Zdroj: | Polish Journal of Veterinary Sciences. 16:283-291 |
| ISSN: | 1505-1773 |
| DOI: | 10.2478/pjvs-2013-0039 |
| Popis: | Aim of the study was to evaluate the effect of immunization of hens with bovine vaccines (C, R, T) on the course of IgY antibodies production against selected bovine E.coli strains, rota- and coronaviruses in egg yolk in farm conditions. The hens (40 individuals per group) were vaccinated twice, subcutaneously in four week interval and eggs were harvested once a week. Control group consisted of eggs sampled from non-vaccinated hens located in neighbouring cages. The antibody activity was measured by ELISA. All used vaccines induced the rise of IgY antibody in egg yolks. Based on the duration and the highest level of IgY antibody against bovine alimentary tract pathogens C vaccine was further used in next two trials for vaccination of 1000 hens each time. Double immunization seems to be enough in mounting response against examined pathogens for several weeks. Immunization with C vaccine allowed to harvest eggs with satisfactory levels of E.coli, rotavirus and coronavirus IgY antibodies which may be used to evaluate their protective effect by oral administration in calves. |
| Databáze: | OpenAIRE |
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