age limit
ya a age limit to how old they can be to battle some older sylestis need some rest and younger sylestis could take there place all those other pet rising sites
pounds
a place other then the wild syleties can be got it would save time and mistakes if someone released a sylesti it would go there
zoos everybody could have one it goes along with the age limit they could still earn money with them

Not sure where you're going with the age limit thing, but if it's retiring them and limiting their breedability, I would have to say I would not support that. That has been a reason for me to quit many a breeding game. It would be really detrimental to themed breeding as well. If it were just for fighting... well, I might find it annoying having to train new pets all the time, but I guess some people might like that dynamic.

A pound is a great idea, and one that has been brought up several times. However, it would have to be a separate option from releasing. There is already a way to regain a mistakenly released pet, and most people that release pets do it for a reason, mostly so pets they worked hard for won't be easily available to people to continue their projects without permission.

A zoo... not sure what purpose that would serve. People can already look at our pets in our stables or on the advanced search. If it's just a collection thing where pets stop being able to fight and breed and just sit there and look pretty... again, not sure what purpose it would have in the game? Could you expand on your idea there?

sure in the zoo if you put a retard pet in the zoo people could vote on it and give money with the vote if a pet in the zoo gets say 100 or 200 votes they come out of retirement and you can battle again they would also have a higher chance of passing traits on to babies when bred and in the age limit they can still breed
and i aggre i overlooked that fact abute the pound