I just ran across a video (https://www.youtube.com/watch?v=bPsw3VfjH8s) that explains what I have been doing for the past ten years at weaning time on my farm.
It is very amazing how "quiet" the weaning process is.
And a very nifty way to sort cows and calves can be seen here https://www.youtube.com/watch?v=P4FUE-OrXRw.
And while we are on the topic of handling cattle, you really need to consider adding a Bud Box (https://www.youtube.com/watch?v=aniUeugrm8Y) to you handling facility.
An easy way to put up electric fence (https://www.youtube.com/watch?v=R2y_YcqYd3E) I adapted a 4 wheeler similarly in 1989.