Table 2.
Mortality of 5-day-old brown commercial layers due to experimental Salmonella Gallinarum strains being defective in any gene related to anaerobic respiration.
| ─ | CFU/mL | Cumulative mortality at any day post infection (dpi) | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 15 | 17 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | Total# | % | ||||
| dmsA | 108 | 12 | 22 | 27 | 28 | 29 | 30 | 30 a | 100 | |||||||||||||||||||
| 106 | 2 | 3 | 4 | 6 | 7 | 11 12 | 14 | 21 23 | 25 | 28 | 28 c | 93.33 | ||||||||||||||||
| torC | 108 | 7 | 22 | 25 | 26 | 27 | 28 | 29 | 30 | 30 a | 100 | |||||||||||||||||
| 106 | 1 | 2 | 4 | 5 | 6 | 10 | 12 14 | 15 17 | 20 | 21 | 21 b | 70 | ||||||||||||||||
| narZ | 108 | 3 | 13 | 24 | 25 | 26 | 26 a | 86.67 | ||||||||||||||||||||
| 106 | 1 | 8 | 13 | 14 | 15 | 17 | 17 ab | 56.67 | ||||||||||||||||||||
| frdA | 108 | 5 | 12 | 16 | 18 | 19 | 21 | 22 | 23 | 25 26 | 27 | 28 | 28 a | 93.33 | ||||||||||||||
| 106 | 4 | 9 | 10 | 11 | 11 a | 36.67 | ||||||||||||||||||||||
| None* | 108 | 9 | 21 | 25 | 26 | 26 a | 96.30 | |||||||||||||||||||||
| 106 | 5 | 6 | 9 | 10 | 11 | 12 | 13 | 14 | 23 | 18 | 20 | 20 b | 64.52 | |||||||||||||||
*
Group of birds infected with the original strain of SGNalr; # Different letters to the same dilution between mutant and wild strains are significant by Chi-Square test (p<0.05).