received an oral gavage of 2 mL of
probiotic (5 × 106 lactobacillus and streptococcus
colony forming units/mL) (n = 94)
or vegetable oil (n = 87) within 24 hours
after farrowing. There was no effect of
treatment (P = 0.65) on survival until weaning,
and pig body weight at 7 (P = 0.63), 14
(P = 0.55), and 21 (P = 0.24) days of age
were not different between groups. In
Experiment 3, weaned pigs were placed in
nursery pens (4 pigs/pen) with either pigs