During the experiment, six animals (four EM
and two SC) were lost due to illness, death or due
to balancing the number of pigs per pens. After
slaughter and following preliminary data analysis,
further six pigs were removed from the data set: one
SC pig was actually a cryptorchid, two IC pigs did
not respond to the vaccination (as shown by genital
tract development), and three pigs (one from each
treatment group) exhibited extremely slow growth.