Is there anything to make one come in

I have used ludalyse. I think that's how you spell it. Anyway its used to make cows come in heat. I use 3ccs the couple times I did it. Worked on some but not all of them.

I use wheat germ oil. Just poor it over her feed. Works most of the time .

How much of that oil

Chris what use to work for us was paint a number on her. Lol