I'd like to know that info too.Hopefully it's close. Cats are as bad as rabbits. I need to get mine snipped and plugged. Got down to 2 cats now back up to 9. 2 Litters in no time. The mama cat is kinda wild and I'm thinking cast net to catch her when she comes to eat. And maybe some leather gloves. She's mean. But loves leaving here kittens here.