I had some hog panels I used for a while. Dang calf can sneak it's rotten lil head thru those too!We like fence line weaning here but you need a good fence between. This panel I just need to swap out for a tighter one they can't reach through like the one beside it. Electric fence works well too. I find they get a lot less stressed if they can stand beside the mom during the first week. After that they ideally would be penned off so they can't be nose to nose.