Newcastle Disease Viruses

Field observations suggest that currently available vaccines and in practice vaccination programmes are unable to prevent field outbreaks. What is your experience?

dear sir you are right as there is arule refers thet in vitro not like in vivo as most of vaccination occur in vitro and most of signs occur in lab so dont depends on vaccination at all but you must depends on it beside your concentration on the immune system of the bird and how to build it good from the earilar stages of chicks as there is afact say the bird of the same weigt at the same age of 7 d will be of good immune system so you must increase your concentration on how to feed chick good in the first 7 days and give them aplenty of feed and go away from any stress during this perod and give the bird good rearing of vitamines and treat well mycotoxins problems early as possible as you can in last the immune system of bird not stone but it is ameat and tissue so you must built it good you must consider good hygenic biosecurity also

dear ninad im very pleased for your comment on my article as you know the very strong waves of vesrotropic form of N.D viruses affect our area of the middle east and india and alot of country along the world and there is alot of vaccination belonging to many companies but with no sufficient value so we make some programmes in my area which gives some good resultin broiler as at 7 days vaccinate in water with hitchener beside I.B and in 10 days you inject killed vaccine belonging to N.D to give hyperimmunization to flock but you must give the dose according to the company required as it called (killed vaccine is dose related) to give good result and in 18 days you must give vitapest or avinew or lassota gold but through eye drop ( this technique is very important not through water intake and this is the last vaccination against newacastle

but if there is aproblem of N.D I SUGGEST NOT TO VACCINATE AND GIVE immunostimulant drugs as i refer to my article you can go to it if you need my programmes for layes i will give you in the last this is my field experience of view about my vaccination programe which can be suitable in area and not siutable in other area of the world thank you

i may want know the maintanance of layers.

Thanks for your worthy informative article about Newcastle disease... What's your opinion about adminstration of live n.d vaccine at 7day-old broiler while you suggest that maternally derived antibody will be 2^6 ??