Twin with R-451. Nursed a foster mom who had lost her calf. Very similar actual growth numbers, 3.18 ADG versus 3.13 ADG between the two. Another really good candidate for breeding heifers. Real dam has a weaning ratio of 3 @ 108, average 205 day weight on 3 calves is 762 lbs.and is almost always one of the very first to calve.