Marcia Nishizawa
Department of Veterinary Pathology, Faculty of Animal and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal Campus, Jaboticabal, SP, Brazil
Antonio Carlos Paulillo
Department of Veterinary Pathology, Faculty of Animal and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal Campus, Jaboticabal, SP, Brazil
Antonio Carlos Alessi
Department of Veterinary Pathology, Faculty of Animal and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal Campus, Jaboticabal, SP, Brazil
Aryana Duker Nunes
Department of Veterinary Pathology, Faculty of Animal and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal Campus, Jaboticabal, SP, Brazil
Josie Maria Campioni
Department of Veterinary Pathology, Faculty of Animal and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal Campus, Jaboticabal, SP, Brazil
Laura Satiko Okada Nakaghi
Department of Veterinary Pathology, Faculty of Animal and Veterinary Sciences, Universidade Estadual Paulista, Jaboticabal Campus, Jaboticabal, SP, Brazil
Luciano Doretto Junior
Animal Reference Laboratory, Campinas SP Brazil
Fabiana Silva Lima
Ministry of Agriculture and Supply, Bras�lia, DF, Brazil
ABSTRACT
This study aimed the characterization of the importance of vaccination against Newcastle disease in white Pekin duck (Anas platyrhynchos), and investigated the state of carrier of the virus in this species. There were used 120 Pekin ducks, distributed at random into 4 groups, vaccinated or not. At 60 days of age, all groups were challenged with a pathogenic virus (NDV) suspension, EID50 = 108,15/0,1mL. Cloacal and tracheal swabs were collected after 6, 14, 20 and 30 days post-challenge for viral isolation in SPF embryonated eggs. White Pekin duck of all the groups did not demonstrate symptoms of the Newcastle disease. They were refractory to the clinical disease with the NDV. In Pekin ducks from control group, the viral isolation was obtained from 20 up to 30 days after challenge. It was demonstrated therefore the state of carrier of NDV of the Pekin duck. In ducks from vaccinated groups, the viral isolation was null. It was also demonstrated therefore the importance of the vaccination in the suppression of the state of carrier of the NDV in white Pekin ducks.
How to cite this article
Marcia Nishizawa, Antonio Carlos Paulillo, Antonio Carlos Alessi, Aryana Duker Nunes, Josie Maria Campioni, Laura Satiko Okada Nakaghi, Luciano Doretto Junior and Fabiana Silva Lima, 2006. Study of Experimental Vaccination in White Pekin
Duck (Anas platyrhynchos) Against Newcastle Disease: Investigation
of the State of Virus Carrier. International Journal of Poultry Science, 5: 786-788.
DOI: 10.3923/ijps.2006.786.788
URL: https://scialert.net/abstract/?doi=ijps.2006.786.788
DOI: 10.3923/ijps.2006.786.788
URL: https://scialert.net/abstract/?doi=ijps.2006.786.788