Muhammad Ali

Dibesh Thapa salam,From my experience vaccination in breeder and layer is a must. In broiler is also important but depends on the infection time. If it is before 3 weeks, vaccines will not help at all, if it after yes vaccine will help definitely yes. That why lab tests are important for 2 things: 1- to know what is going on with your farm and if other diseases playing a role to control them.2- yo ...

Good day, Dr. H Bakri: AI H9 is endemic in the area, I think it is playing a role in hindering ND & I.B variants - vaccinations ( i.e vaccines failures ) , due to high pressure in the field early exposure to the virus leads to interference & immune - suppression , in that situation advice on bio-security is a high priority & not to blame vaccines & vaccinations.Regards.