Suitability of differently formulated dry powder Newcastle disease vaccines for mass vaccination of poultry
نویسندگان
چکیده
منابع مشابه
Suitability of differently formulated dry powder Newcastle disease vaccines for mass vaccination of poultry.
Dry powders containing a live-attenuated Newcastle disease vaccine (LZ58 strain) and intended for mass vaccination of poultry were prepared by spray drying using mannitol in combination with trehalose or inositol, polyvinylpyrrolidone (PVP) and/or bovine serum albumin (BSA) as stabilizers. These powders were evaluated for vaccine stabilizing capacity during production and storage (at 6 °C and 2...
متن کاملVaccination of Chicks with Experimental Newcastle Disease and Avian Influenza Oilemulsion Vaccines by ln Ovo Inoculation
متن کامل
Herd immunity to Newcastle disease virus in poultry by vaccination
Newcastle disease is an economically important disease of poultry for which vaccination is applied as a preventive measure in many countries. Nevertheless, outbreaks have been reported in vaccinated populations. This suggests that either the vaccination coverage level is too low or that vaccination does not provide perfect immunity, allowing the virus to spread in partially vaccinated populatio...
متن کاملComparison of viral shedding following vaccination with inactivated and live Newcastle disease vaccines formulated with wild-type and recombinant viruses.
Virulent Newcastle disease virus isolates from the 1971 and 2002 U.S. outbreaks are of the same serotype but a different genotype than current vaccine strains. Prior experiments with inactivated vaccines in chickens show significantly less virus shed in birds vaccinated with a homologous vaccine (same genotype as challenge) compared to chickens vaccinated with genotypically heterologous vaccine...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: European Journal of Pharmaceutics and Biopharmaceutics
سال: 2012
ISSN: 0939-6411
DOI: 10.1016/j.ejpb.2011.11.018