Methods: Female Rattus norvegicus Wistar strain weighing between 150-180 g were randomly selected and divided into two major groups. Each group was subdivided into 5 treatment groups of 100, 200, 400 mg/kg BW of aqueous extract of F. platyphylla and a control group of 5 ml/kg of distilled water. A positive control of clomiphene citrate was used. Treatment of the first group was discontinued after 15 days prior to mating (pre-mating treatment group), while the other was treated continuously till delivery (continuous treatment group). At the 10th day, females were sacrificed and implantation sites were checked and embryos counted. Upon delivery, litter sizes were determined and the pups weighed and checked for deformities. Other reproductive indices were calculated. Data were analyzed by one-way analysis of variance and students T-test. Proportions were analysed by Chi square. Statistical evaluations were performed using STATS programs and Graphpad prism, and a difference was considered statistically significant at.
Results: There was a significant reduction in the percentage post implantation losses of both the pre-treatment and the continuous treatment groups when compared to their distil water controls. The litter size of the pre-treatment group was similar to the distil water group while at 400 mg/kg, the continuous treatment group showed an increase in the litter size similar to that of the clomiphene group. There were no observed external deformities in the pups.
Conclusions: Administration of aqueous extract of F. platyphylla promotes fertility by reducing post implantation loss and by increasing litter size in female Rattus norvegicus Wistar strain
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