1.
Alexandria Journal of Veterinary Sciences [AJVS]. 1997; 13 (1): 27-36
em Inglês
| IMEMR
| ID: emr-116321
RESUMO
Three simultaneous experiments were carried out to investigate the efficacy of partial doses [1/5 and 2/5 field doses] of an oil emulsion vaccine [OEV], given either alone or in combination with live vaccine at 1 and 7 days, in protecting experimental chicks against very virulent infectious bursal disease virus [vvlBDV]. Variable protection results were obtained and attributed not only to vaccination scheme but also to the high levels of maternal antibodies but OEV seems to play a role in their depletion rate as measured by Elisa. Work is in progress to investigate the efficacy of full dose of OEV on the immune response and depletion rate of maternal antibodies