Fertility
Table 1 also gives the pregnancy rates for the five groups. The pregnancy rates amongst the groups were not significantly different (P > 0.05), but the pregnancy rate in groups 1 and 5 were statistically different (P < 0.05). The presence and frequency of dead and/or absorbed fetuses in impregnated rats are also given in Table 1. Comparing groups 1–4 with each other, there was no significant difference in the occurrence of abnormal pregnancy outcome (P > 0.05). By contrast, the values in group 5 differed significantly from the others (P < 0.001).
Discussion