Research recently conducted by Dr Aine Seavers on the levels of male testosterone pre and post Easter (for Basenjis in the Southern Hemisphere) has found evidence that Basenji males do have a ‘male season’ around Easter time. Of course Basenji breeders have long realised this but now there is physical blood evidence to support the theory.
The issue is that if a male is tested outside a fairly narrow range of time around the Equinox those dogs might be classified as infertile, low or abnormal fertility when in fact the male is perfectly sound. The test was just completed at the wrong time of year. Although more cases need to be logged the general advice is to be carefully consider the time of year if you are collecting semen from a Basenji.