TABLE 1

Mortality data for fish in all treatmentsa

Treatment
and tank
Initial no. of
fish
No. of fish censoredCumulative no. of
mortalities (day 48)
Day 13Day 48
A17250
A27151
A37250
A total215151
B16042
B26150
B36150
B total182142
C17241
C27142
C37241
C total215124
D18134
D28143
D37232
D total234109
  • a Treatments are indicated as follows: A, probiotic only; B, no probiotic or antibiotic; C, antibiotic and probiotic; D, antibiotic only. The data for the number of fish censored represent the number of fish removed from the experiment for sampling on the indicated day. The antibiotic treatment ran from day 1 to day 13, while probiotic treatments ran from day 9 to day 13. The pathogen challenge was given after collection on day 13. Additional fish were initially included in treatment D to account for expected mortalities.