It have that at Mintor for Satyr Animal rezzer 5.9 version that can rez either animals to feed or non feed animals and hud animal converter. https://opensimworld.com/hop/81990
Hope this help.

I will add some information to the user guide all about pets very soon!

Oh and when you land at the Quintonia region, it's the first building to the left, you'll see a room full of different boxes, it's the 1st box.

It should be in the very first box. It's an animal rezzer with "options". In the Options you can select the "type" of animal you want to rez, "animal" or "pet". If you select pet they do not have to be fed. It will give you other options such as "force adult" or not, to have them need to be fed or not. I have them all over my wildlife preserve at Lioness Den and I love em. You can interact with them by petting them. There is also a note card in the animal's "content" folder where you can change if they give Manure, feathers, eggs, milk. By setting all of those to 0 they won't, but I usually take it one step further and remove those things from the animal's content inventory.