Table 5.

Expression of hilA after growth of S. enteritidis in the crop contents of fed and molted birds

Time (h)β-Galactosidase activitya on:
Day 4Day 9
ControlMoltedControlMolted
Trial 1
 1341 ± 42695 ± 83 (2)396 ± 34740 ± 58 (1.9)
 3343 ± 62712 ± 49 (2.1)417 ± 23847 ± 63 (2)
 5362 ± 71686 ± 58 (1.9)406 ± 42690 ± 49 (1.7)
Trial 2
 1414 ± 43745 ± 63 (1.8)326 ± 63684 ± 54 (2.1)
 3436 ± 59828 ± 98 (1.9)356 ± 41694 ± 43 (1.9)
 5427 ± 64790 ± 42 (1.9)387 ± 38619 ± 41 (1.6)
  • a Data are presented as means ± standard deviations, n = 6. Activity was measured in Miller units (see the text). The fold increase over the control is given in parentheses.