I don't believe it. I tend to believe that the length of daylight is what triggers does into estrus. I also don't believe you can go off one person's study because everyone's place is different. On my new place for example there are 6 does to every buck so I don't have a fighting phase of the rut. You can't rattle them in or anything. They don't need to fight. I'm in the process of doe removal but its gonna take me a couple years. I think you can't go by cookie cutter research because everyone's hunting place has different factors.