Özet:

The results showed that the vaccination programs in 10 farms of broilers nearly similar at the early stage of rearing, including vaccination against Newcastle and infectious bronchitis disease together by spraying, at 3 day age killed ND vaccine were used then IBD vaccine at 8 day age. After that the differences occurred according to the disease which affects the flock that lead some times to emergency vaccination against that disease. In addition, some farms used Swollen Head Syndrome (SHS) vaccine. The results of six layers farms showed also close similarity of vaccination programs at the first stage of rearing which included vaccination against Marek's disease at 1 day age by injection, coccidiosis at 7 day age and other live, killed bivalent or trivalent vaccines as well as the vaccination against avian influenza (H9N2).

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