Assessment of a study, by Enric de Marco, on the use of anti-inflammatory drugs in sows at farrowing in order to reduce piglet mortality and increase the weight of piglets at weaning.
From lab to field
The article provides an alternative to the current vaccination programs that could be the solution for farms with early onset oedema disease. However, this alternative —consisting of vaccinating the dams at the end of gestation to achieve post-weaning piglets immunization—, also raises questions...
Without the participation in the program of all farms present in the area, progress will be minimal or nil.
Virulence and infectivity differences between strains are notorious. Moreover, the new virus is not controlled with vaccines developed from classical strains and may yield false positives in some diagnostic tests.
Any contact between fattening pigs of different age during restocking of compartments increased the risk.
The immune status of farms is quite possibly different from the one they had before piglets mass vaccinations.
Despite not having a consistent post-vaccination serological reaction, vaccinated animals behave differently from unvaccinated animals under field conditions.The article explains why vaccines offer protection.