thank you very much both of you, most helpful. is it nothing to do with being an African breed then?

Hi everyone

can anyone tell me or point me in the right direction to find out why Basenjis only have one estrus cycle per year please? I have spent a lot of time researching this and can't quite find a definitive answer! I understand it may be to do with their origins, some kind of circannual rhythm? I also read it is dues to a reccesive gene they carry. any help greatly appreciated form the experts!