Poultry Science · 1957 · 16 citations · 7 references
Veterinary MedicineInfectious DiseasesPoultry ScienceImmunizationPoultry MedicineVaccinologyPoultry VaccinationPoultry VaccinologyVaccinationVeterinary VaccinationVeterinary VaccinesViral VaccinesAvian Virus VaccinesChick VaccinationContainersMass Vaccination OperationsNewcastle Disease VaccinesPoultry VaccinesVaccination RouteViral Immunity In Poultry
THIS investigation was undertaken to further study and to determine the efficacy of mass vaccination of chickens for Newcastle disease (ND) via the drinking water (Luginbuhl et al., 1954; Winterfield and Seadale, 1955; Luginbuhl et al., 1955). Factors having a possible influence on immunity induced from this route of administration were studied, and the results are presented. MATERIALS AND METHODS B1 strain Newcastle disease virus (NDV) (Hitchner and Johnson, 1948) vaccines, designated A, B, and C, used in all trials, were obtained from three sources. Vaccine A was a lyophilized product of commercial origin. It was supplied in 500-dose vials accompanied by 15 ml. diluent per vial in separate, plastic containers. It was suggested that chicks 3 to 21 days of age be vaccinated after being deprived of water for 4 hours. The dried virus was reconstituted with the diluent and immediately added to the drinking water in the ratio …
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A simple method of estimating 50 per cent end points
Hr Muench · Medical Entomology and Zoology · 1938 · 8.4K citations
Immunization of chickens against Newcastle disease.
Brandly Ca, Moses He · PubMed · 1946 · 15 citations