I think it probably depends on what you’re feeding and your deer herd, because I’ve never had deer take more than a day or two to hit my All Stock or corn.Any change in feed that is not native will take some time for the deer to start eating it. I put out some alfalfa hay this last year know deer love it, the deer here took nearly 2 months to start on it. I use some cotton seed and again it took time for them to start eating it. My deer numbers are way down, I blame it on the poacher.