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Production of hyperimmune serum against newcastle disease virus (NDV) in rabbits
2003
Iqbal, M. | Mahboob, K. | Zulfiqar, M. | Anwar-ul-Haque | Nabi, G. | Tabassum, R. (Veterinary Research Inst., Lahore (Pakistan))
The quick diagnosis of Newcastle disease requires known serum against the disease. In this study, an attempt was made to raise anti- Newcastle disease virus hyperimmune serum in rabbits. Three different inoculum were prepared to inoculate in the rabbits; (i) Fresh harvested allantoic fluid containing Newcastle disease virus (NDV) Mukteswar vaccine strain; (ii) Freshly harvested ND virus pelletted through centrifuging at 40,000 rpm for two hours and resuspended in normal saline and (iii) Pelletted virus (centrifuged and suspended as in ii) with addition of incomplete Freund's adjuvant. It was observed during the monitoring of haemagglutination inhibition (HI) titre that the serum collected after series of inoculation of 1st and 2nd inoculum provided maximum titre upto 1:256. However, the serum collected after series of injection of 3rd inoculum gave maximum HI titre 1:1024. This study suggested that antigen containing incomplete Freund's adjuvant provided better immune response against Newcastle disease virus in rabbits.
Показать больше [+] Меньше [-]Evidence of possible evasion of protective immunity by NAD-independent isolates of Haemophilus paragallinarum in poultry
2004
Bragg, R.R. (Free State Univ., Bloemfontein (South Africa). Microbial, Biochemical and Food Biotechnology Dept.)
