Don't know if this is the right forum but I thought more people would look here than in the swine forum. I have a Catahoula Leopard Dog, that's her in my other thread "American Made." She's just over a year. Several months ago I started letting her help me round up my piglets which roam the property. They're under 20 lbs. for the most part when I let them run loose. She's got the drive and has been great help. Problems started in the past couple of months. She's more prone to be overly rough with them. She chewed down on an escaped 50 lb. gilt (these are razorbacks) and I had to treat the wounds and put the gilt on anitibiotics. Since then she's gotten a taste of hog meat and is getting more problematic with them. Yesterday she tore into the neck of a 20 lb. piglet. I could see the trachea and had to put her down due to the extensive damage. Ceniza has even bitten me (let go as soon as she realized her mistake) when I had a piglet in my arms. She gets way too excited and doesn't respond to commands when ordinarily she does. Ceniza wears an electronic collar when she's working, but she doesn't respond to it when she's after pigs. I've even brought a piglet into the house and corrected her when she nears it. I don't know Ceniza's breeding; I found her as a very young pup. She was alone, no more than 5 weeks old, and filled with parasites. Is there a way to teach her to release and leave them alone or does it sound like she's ruined and should be kept away from the pigs? Thanks in advance. Any help will be appreciated. I can't let her hurt the piglets but really enjoyed working with her before she started all this roughness.