Table 2.
Effect of cold water-induced stress on the rate of pregnancies and litter sizes in BALB/c mouse strain after C. muridarum genital infectiona.
| Animal group | Fertility at day 19 | Number of embryos/mouse | Gross appearance of genital tract |
|---|---|---|---|
| Non-stress | 19/19 (100%) | 7 (11b), 8(2 b), 9(6 b) | Normal appearance |
| Non-infected | Average no. of embryos c = 7.74 ± 0.9 | ||
| Non-stressed | 21/25 (84%) | 6 (16 b) to 7 (6 b) | Inflammation and necrosis |
| Infected | Average no. of embryos c = 6.6 ± 0.6 | ||
| Stressed | 14/25 (56%) | 3 (11 b), 3 (6 b) | Inflammation and necrosis |
| Infected | Average no. of embryos c = 3.6 ± 0.8 |
a
Pregnancy testing was performed after the resolution secondary C. muridarum genital infection. Mating occurred 120 days after primary infection or 40 days after secondary infection
b
The number in parenthesis denotes the number of mice that had the specified number of embryos.
c
The average number of embryos of each animal group was obtaining by dividing the total number of embryos over the total number of the mice of the group.