Dear Sir! Marek vaccine is administered only once on the day, as it was mentioned by You. This is correct. After the vaccination a race against the time starts betveen the vaccine viruses and the wil…
Replied Mar 5
Mr Ratri! In my experiences revactination of layers is not necessary. You have to vaccinate your birds as day olds individually by chickenherpes virus and cell-bounded vaccine likle Rispens simultane…
Replied Mar 2
Sir! Are You sure, that the vacination by a Massachusetts strain (Ma5)even it is administered frequently gives a good protection against IB, varinat strains,(IB4/91 or others) are existing on Your f…
Started Jan 23
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