Indian Journal of Animal Research
Chief EditorK.M.L. Pathak
Print ISSN 0367-6722
Online ISSN 0976-0555
NAAS Rating 6.50
SJR 0.263
Impact Factor 0.4 (2024)
Chief EditorK.M.L. Pathak
Print ISSN 0367-6722
Online ISSN 0976-0555
NAAS Rating 6.50
SJR 0.263
Impact Factor 0.4 (2024)
Comparative efficacy of cryoprotectant in the lyophilization of pigeon paramyxovirus-1 vaccine
Submitted19-02-2016|
Accepted17-09-2016|
First Online 25-04-2017|
Preparation of live attenuated freeze dried Pigeon Paramyxo Virus-1 (PPMV-1) vaccine selection of proper cryoprotectant which could preserve and protect the virus against injury due to reduction of temperature at the time of lyophilization, was very necessary. PPMV-1 locally isolated lentogenic strain was selected as seed virus which was properly attenuated by serially passaging in 9 to 10 days old embryonated specific pathogen free (SPF) fowl eggs and produced master seed virus and working seed virus. Five per cent lactalbumin hydrolysate with 10% sucrose (LAS) and 1% polyvinyl pyrrolidone (PVP) were used as two different cryoprotectant for lyophilization of working seed virus. After lyophilization value of haemagglutination (HA) titer and embryo infective dose fifty per ml (EID50/ml) were changed and concluded that both LAS and PVP could be used as suitable cryoprotectant where LAS was better than PVP which was first time done in the whole world.
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