Would you be talking about Footrot Flats? I visited NZ once and went to a sheep station there. I saw this herd of sheep coming over a hill being herded by a bunch of border collies. I immediately fell in love with that breed and got one of my own I had for almost fourteen years. See my profile page to see the cartoon character of the the dog. I miss my girl still and it’ll be three year this year she’s gone.
There was a baudy comic strip of pig dog in OZ 20 years ago.Sorry about your puppy,I know thats hard.