Thanks for all the info Kathy, you've really helped me out a lot ! I've been handling the rat a lot today, she's been sitting on my lap for hours (i really am amazed, you'd never be able to do this with a syrian hamster) i took some pics too;
She's a lovely rat, although she is very shy. I've named her Maya .
My Maia says hello to your Maya
She was a pet shop girl who joined me at rough guesstimate age 12-16 weeks, and she was on her second litter (she was a foster rat I took in with her one day old babies, then decided to keep). She was rescued along with hundreds of other rats as part of a pet shop closure, she had 3 week old babies and the dad had been left in with them so she got pregnant again straight away. You never know, she could have had another litter before then. I'd keep a very close eye on your Maia (Maia means mum and fertile by the way lol), as if she's been in with males, it is probably 99% certain she's pregnant at her age/size.
Do get her a friend or two asap, the pet shop where she came from might have another in from her litter, which would increase the chances of them getting on (although like Kathy I've never had a problem with does, only bucks and even then it's not usually a problem as youngsters - only introducing adults). Although if it does turn out she was in with males, I wouldn't risk another female from the same shop lol. It's not as if they're super expensive - even from a breeder they generally cost the same, contrary to popular belief.
I'm down to 9 now, all middle aged and elderly. Maia is now coming up to roughly 2 years old, her babies are now about 19 months. Time flies
We lost Buddy this morning He was 2 and a quarter, not bad considering his poor breeding, I know, but even so.
That's the one thing that made me rethink about ever having more rats. I nearly slipped and thought about adding a couple more girls, but this morning I remember why I said no more
It's probably myco, all rats (apart from lab rats) carry it but only some will get symptoms - bad breeding/pet shop bred rats are more likely to be affected as reputable breeders take care to breed only from strong healthy rats, whereas those supplying pet shops aren't that considerate and usually dont care what they breed from. They also need to be kept off any kind of wood shaving or dust, as that can cause severe respiratory problems in rodents, most rats will sneeze if kept on wood shavings - and it can also make their myco flare up. Switching to paper based bedding, or hemp, or shredded cardboard bedding (Ecopetbed etc) is best. If she carries on sneezing, or gets rattly in the chest, I'd pop her along to the vets to treat the myco with antibiotics. Otherwise it might just be a minor sniffle due to either the shavings or the stress of changing homes
She's most likely washing more because of the sniffles, so it does sound like a touch of myco or other respiratory illness. Dont be alarmed if you see red stains around her nose and eyes, it won't be blood, it's porphyrin which is a red coloured secretion which is normal in small amount but can be an indicator of stress and illness in excess and/or with other symptoms. If her sneezing continues, a course of oralBaytril from the vets will help. Be careful with any injections in rats as they're prone to "Baytril burns" from injections, something I've had to deal with a couple of times because my vet was not aware of the risk of injecting.
As for life expectancy in rats, it's a tough one. The average is between 18 months and 2 and a half years, with 2 years plus being considered a good age. Some rats make it to 3 and even 4, but it's not common. Obviously rats bred for health have a better chance of making a decent age, but I have seen a small amount of petshop originating rats reach grand ages (Lisa's Angel being one - the brother to our old rat Otis who passed away this summer). On the whole though petshop bred rats don't seem to live as long, with the odd exception like Angel, who I believe is coming up on 3 now. Best way to ensure a longer healthier life is to provide them with a good and varied diet (like the Shunamite diet) and to keep a thorough check on them heath wise, and to provide a good environment for them, preventing stress/boredom/loneliness, etc.
Hope she picks up soon! A nice treat for her while she's under the weather might be some small amounts of Ferretvite, a yummy paste with vitamins in (made for ferrets but great for rats too).
LOL @ vets - some of them are really useless. Show them a horse, and they know what to do. Show them a dog and they usually get it right. Show them a rat, and they panic lol.
By the way, I am the only person in West Yorkshire with a hermaphrodite rat. Apparently. Stupid vet...if I can sex baby rats with relatively little experience at a week or two old, why did he mistake an adult rats hoo-hoo for a pee-pee?