The researchers gave their overheated rabbits 200, 400 or 800 mg Royal Jelly per kg bodyweight, in an oral form just once a week. The experiment lasted 6 weeks.
This stuff is fascinating because think about it: an oral substance that has an ergogenic effect if you take it just once a week? More at the jump...
Source:
Anim Reprod Sci. 2010 Aug;121(1-2):174-80.