4. Discussion and conclusion
In the present study, sexual behaviour tests showed that the
ethanolic seed extract of MP possesses significant sexual function
enhancing activity. Mating behaviour test revealed that the test
drug at a dose of 200mg/kg significantly increased the MF, IF and
EL in all the experimental days when compared to control. The test
drug (200mg/kg) not only significantly increased the EL but also
significantly reducted the ML and IL compared to control, which
indicates the aphrodisiac nature of MP. A significant decrease in
PEI (the potency and libido) was observed with the administration
of MP extract at a dose of 200mg/kg in all three testing days.
The test drug decreased PEI by enhancing either the potency or
the libido. ML, IL and PEIwere considered inversely proportional to
arousal or motivational effects, while III considered inversely proportional
to the performance or potency (Beach, 1956). IIIwas found
to decrease significantly with a dose of 200 mg/kgMP extract in all
three testing days. Similarly, all treated rats copulated more vigorously
than controls, especially Group III was very good in overall
performance. These results thus provide experimental support to
the folk reputation of MP as sexual stimulating drugs without any
toxic effect.