THE EFFECT OF VACCINATION AGAINST MYCOPLASMA HYOPNEUMONIAE ON THE MORTALITY RATE OF GROWING PIGS AFFECTED WITH POST-WEANING MULTISYSTEMIC WASTING SYNDROME
R.E. Harvey

Abstract
In a randomised, double blind, on-farm study, 400 commercial pigs were vaccinated against Mycoplasma hyopneumoniae using a licensed two-dose vaccine given at one-week and three-weeks of age and compared with 400 similar non-vaccinated pigs. The mortality rate of each treatment group was recorded; all pigs that died during the study were examined post mortem and the cause of death, based on clinical and gross pathological signs, was recorded.
???? There was no significant difference between the two treatment groups for overall deaths or deaths deemed to be associated with PMWS.

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