Vaccinating chicks at Beijing poultry farm
During our trip to China we visited the Beijing Vocational College of Agriculture. In this movie clip you can watch professional Chinese poultry farmers, who vaccinate freshly hatched chicks against Marek's disease. Marek's disease is a highly contagious viral neoplastic disease in chickens. It is named after József Marek, a Hungarian veterinarian. Newborn chicks are protected by maternal antibodies for a few weeks.
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