http://www.valleyvet.com/ct_detail.html?pgguid=30e07967-7b6a-11d5-a192-00b0d0204ae5&gas=onomo
We use this product, Onomo. You wet the calf's hair down on the neck and shoulders and then work it into the hair. It has an amonia smell that the cows like. The mother licks it off the calf, and gets her smell all over the calf. You will still have to put the cow in a catch for a couple of days but it will shorten the time by several days.
We have close to 100% acceptance rate. If they don't take the calf, she gets a ride to town.
We never let a cow try to raise both twins, We have found that the cow will kick one of the calves off mid-summer and we are stuck with a small calf at best an a leppy at worst. It is easier just to pull the twin off and graft it on the next cow that loses a calf.
