I've had 16 calves so far this year. I've had to pull 2 already. (Same bulls from last year). Every now and again, I will go a year without pulling one. Just going from memory, I'd say 2 per year is tops for me. I've been limit feeding hay, almost all year. Might have been 6 weeks total of free choice. I limit fed so bad in the fall, I'm actually a little ashamed of my self. I normally feed a little ddg in the spring, but I started back in January this year. Cows have actually shocked me how they are holding up. Maybe better than in all years past. Could the early start to feed ddg be making my calves that much bigger? Is it the other way around too weak to push from not enough energy (calories)? Maybe too silly questions, could be pure happenstance, but something is going on.