Table 3.
Mortality of 5-day-old brown commercial layer 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) | |||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ─ | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | Total# | % | |
| narG | 108 | 1 | 3 | 5 | 10 | 11 | 14 | 15 | 20 | 21 | 22 | 23 | 24 | 24 b | 80 | |||||||||
| 106 | 1 | 3 | 5 | 7 | 8 | 9 | 9 a | 30 | ||||||||||||||||
| napA | 108 | 1 | 9 | 15 | 16 | 19 | 20 | 21 | 22 | 22 b | 73.33 | |||||||||||||
| 106 | 1 | 2 | 3 | 4 | 5 | 5 a | 16.67 | |||||||||||||||||
| torC/dmsA | 108 | 1 | 4 | 7 | 12 | 17 | 22 | 23 | 24 25 | 25 a | 83.33 | |||||||||||||
| 106 | 2 | 4 | 9 | 9 a | 30 | |||||||||||||||||||
| narG/napA | 108 | 2 | 5 | 11 | 17 | 20 | 21 | 22 | 23 | 24 | 24 b | 80 | ||||||||||||
| 106 | 1 | 4 | 8 | 11 | 12 | 13 | 14 | 14 b | 46.67 | |||||||||||||||
| narZ/napA | 108 | 3 | 11 | 19 | 22 | 25 | 26 | 27 | 28 | 29 | 29 a | 96.67 | ||||||||||||
| 106 | 1 | 5 | 8 | 10 | 14 | 15 | 15 b | 50 | ||||||||||||||||
| None* | 108 | 2 | 4 | 10 | 18 | 21 | 24 | 27 | 28 | 29 | 29 | 30 | 30 a | 100 | ||||||||||
| 106 | 4 | 12 | 15 | 17 | 18 | 18 b | 60 | |||||||||||||||||
*
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).