IMMUNE RESPONCE OF CHICKENS VACCINATED WITH NEWCASTLE DISEASE VACCINES USING DIFFERENT VACCINATION PROGRAMS. | ||
| Veterinary Medical Journal (Giza) | ||
| Volume 46, Issue 2, April 1998, Pages 209-222 PDF (5.1 M) | ||
| DOI: 10.21608/vmjg.1998.377278 | ||
| Authors | ||
| MANAL A. AFIE* 1; SAHAR A. ZOU-EL FAKAR1; M.F EL-KADY2 | ||
| 1Dept. of Poultry Diseases , Fac. of Vet. Med., Cairo Univ | ||
| 2Dept. of Poultry Disease, Fac. of vet. Med., Cairo Univ. (Beni-Suef) | ||
| Abstract | ||
| Six vaccination programs against Newcastle disease were evaluated. The criteria of evaluation were hacmagglutination-inhibition (HI) test for humoral immunity, lymphocyte transformation (LT) test for cell-mediated immunity, cillary activity (CA) test for local tracheal immunity and challenge test for overall vaccinal protection. The vaccines used are Hitchner B1, LaSota and inactivated oil-adjuvant vaccines. The early vaccination with Hitchner B, vaccine gave a considerable immune response but not as high as later vaccination. While the use of inactivated oil-emulsion vaccine with living vaccines, specially if simultaneously used, afforded a solid immunity particularly if used at 5 day-old under our experimental conditions. | ||
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