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Rats Rule! => Rat Care Corner => Topic started by: petunia on May 02, 2009, 06:18:27 PM

Title: Questions Re: Rat Life Expectancy Survey
Post by: petunia on May 02, 2009, 06:18:27 PM
hi,
i didn't read this entire thread, because it's just soooooo long, but i was wondering, has anyone added up the totals and come up with an average life span?

would also be interested to know if spayed/neutered rats lived longer.

and i guess it would be interesting to know if pet store rats did not live as long as i would suspect.

i've got my first five rats, three are young- 7 mos and under, and two are older, around 17 mos

i hope the average is more than 2 yrs!! don't want to lose my grumpy ol girls so soon after getting them, although one of them does have a growth that i found a few days ago that she didn't have when i got her early last month
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Dearpie on May 06, 2009, 11:14:09 AM
I split this post off from the original topic, as the purpose of the Life Expectancy thread is not to have discussions this post is trying to generate.  That thread is pretty much for posting only about the age of death of your rats, no discussions there, please.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Whaturmuva on May 21, 2009, 02:50:16 PM
hi,
i didn't read this entire thread, because it's just soooooo long, but i was wondering, has anyone added up the totals and come up with an average life span?

would also be interested to know if spayed/neutered rats lived longer.

and i guess it would be interesting to know if pet store rats did not live as long as i would suspect.

i've got my first five rats, three are young- 7 mos and under, and two are older, around 17 mos

i hope the average is more than 2 yrs!! don't want to lose my grumpy ol girls so soon after getting them, although one of them does have a growth that i found a few days ago that she didn't have when i got her early last month

I'm sad to say that most rats only live between 2 and 3 years, but some with good genetics and no health problems have lived to 5 years or longer.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: scatteredbones on May 25, 2009, 08:55:12 AM
My rat Buddy only lasted 2 years before he got cancer.  Male, not neutered.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: BackAtTheLab on June 25, 2009, 07:28:01 AM
F-7m
F-20m
F-23m
M-18m
M-30m
M- 22m
M- 4m

Good breeding creates much better stock. Abused rescues, abandonment, oops litters and lab rats don't apparently....
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Rattens on June 27, 2009, 02:44:53 AM
My post is probably buried in the thread, but I went through and took a random sampling of 250 rats from the life expectancy thread.  The average came out to be approx 20 months of age (This includes both genders, spayed/neutered and not.  However, I excluded any rats that died under the age of 1 month.)
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: ChelleAngel on August 24, 2009, 09:22:46 AM
I was told by the girl at the pet store where I got my two girls who has a great little boy that rats live about 2 1/2 to 4 years. She said that 3 years is about normal and they are considered seniors at 2. I asked her if it's ok to believe that they could live to 3 to 3 1/2 if being taken care of well and she said yes it is but 4 would be pushing it. So that was my answer from the girl I know. It would be interesting to me to find out who lives longer, boys or girls? Or is it about the same? Just my neurosis.... :o

Chelley
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: diamond_wings on August 24, 2009, 11:28:35 AM
The reason she probably said that is because female rats are prone to mammary tumors which can be fatal. Also, pet store rats tend to have a shorter life span because they generally do not have the best genetics, and there is no way to know what diseases are in their bloodline etc.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Sola on September 16, 2009, 04:45:15 PM
so does anyone know the average lifespan of well bred rats? Do they routinely get to 3 years? Has anyone got or has a rat who've gotten to 4 years? The only one I met was a petshop rat, but is that age reserved for the lucky few?
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: shayb26 on September 18, 2009, 11:52:27 AM
so does anyone know the average lifespan of well bred rats? Do they routinely get to 3 years? Has anyone got or has a rat who've gotten to 4 years? The only one I met was a petshop rat, but is that age reserved for the lucky few?

I got my first rat templeton when he was about 1 1/2 and i had him for another aprox 3 1/2 so he was about 5 when he had to be put to sleep due to a tumor and hind end paralisis caused by it.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: petunia on October 17, 2009, 03:09:15 PM
My post is probably buried in the thread, but I went through and took a random sampling of 250 rats from the life expectancy thread.  The average came out to be approx 20 months of age (This includes both genders, spayed/neutered and not.  However, I excluded any rats that died under the age of 1 month.)

thanks so much!! this seems to be about what i would have guessed, not doing the math but just looking at the numbers posted
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: furbabyfurniture on December 06, 2009, 03:01:34 AM
It's such a shame we lose them so soon...little blessings in precious rattie bodies.   :BlueDumboBigEyes:  I wish my rattle tats would live the length of my own life span...now wouldn't that be amazing?! 
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: htsr4 on March 07, 2010, 05:59:06 PM
I had two rats that lived 4 1/2 years that just died recently
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: kittywombat on April 29, 2010, 09:00:25 PM
When I was on the Ratlist I did something similar. I took a survey of around 200 rats. I found the average age to be slightly over 2 years. Most died from either mycoplasma or tumors. This was around like 10 years ago.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: erbusbee on May 23, 2010, 10:28:24 PM
I'd love the numbers on spayed/neutered versus not, and also the numbers on breeders vs pet store/rescue rats.  I know the breeders have been hard at work improving health in their lines, and it would be interesting to see what the hard numbers are for results.

Anyone got a few free hours and an Excel spreadsheet?  lol
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: EchoAndWillow on July 11, 2010, 12:59:04 AM
I've heard the average life span is about 3 years, and hamsters live to about 2 years. so far all of my rats have live to at least 3, and my oldest girl (putting her to sleep on monday :'( )is 4 and a half
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Gypsyrags on July 20, 2010, 08:02:01 AM
ive only had my rattins live to about 2 1/2 years :( wish it were longer though :puppy_dog_eyes:
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Cyove on August 19, 2010, 04:21:30 AM
I've had a few rats live to 4, 5, and 6 years (only one for that long, and to be honest I probably should have had him humanely euthanized far before that due to his quality of life being diminished), but the majority lived a lot less; some of them didn't even make it to a year before medical/health issues struck them down. :puppy_dog_eyes:
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: RattyFase on August 21, 2010, 04:09:20 PM
Ive had hairless rats for 6 years. The only issue they had were eye problems. They were a family so i believe that was the reasaon they lived so long. The more attention and love you give your rats the longer they live. Health issues of course are what reallly make the rats live a shorter span.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: erbusbee on October 27, 2010, 09:27:38 PM
Sooo...600+ answers to the survey, and no stats yet?  That's frustrating.  Sorta defeats the purpose of doing the survey if the data aren't going to be put to any useful analysis.  I'm sure I'm not alone in wondering whether good breeding really helps, and/or spay/neuter.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Angelwoutwings on December 07, 2010, 04:09:09 PM
I have heard two things that are supposed to prolong ratty lives. This was only through word of mouth and I have not done any personal research on it. The first is having a soy free diet. I think my friend found this from the Rat Fan Club, but not sure. She said rats that were on soy free diets lived to 4 or 5. The other thing is having them live in a non-metal cage. Don't ask me what else they could possible live in?! I know lab rats live in little plastic bins, but I could never do that to my babies! I would think a big plastic bin they could chew through and it would stink?? Just wanted to share in case anyone wanted to do their own research on it!
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Rzrwyre on January 09, 2011, 09:58:44 PM
Honestly, about spaying/neutering...I have gotten some very mixed feedback from the actual vets who do it.  Most agree that females probably do better spayed.  But when it comes to the boys, I've gotten the idea that their overall cancer risk might be a lot lower than females and they tend to want to hold back unless there is a behavioral or cage mate (say boy with girl or aggression) issues.  Wondering if anyone else found this?  Some surgeons simply want to cut, and I have friends on all levels of the veterinary profession who pretty much agree.  I have to admit, with getting new rat friends in my more than immediate future, I'm faced again with those choices about possibly spaying/neutering.  So, I'm wondering what y'all think.  (I usually just have a two rats at a time and have had some spayed females, some unaltered, and a couple of intact males, though I sought neutering, the vets recommended against it).

Best,

Raaz.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Rzrwyre on January 10, 2011, 11:24:42 AM
I won't go back too far, so just the last few that are fresh in my mind:

Male, 19 months.  (Intact, cardiac arrest following lung cancer...had pneumonia previously as complication)

Female, about 28 months.  (Spayed due to early uterine issues/bleeding.  Congestive heart failure.)

Female, about 16 months.  (Not spayed.  This is a very sad one...she went completely insane when her sister died and became horrifically aggressive, self-injurious, and almost totally stopped eating.  Sadly, I had her euthanized because...well...she CLEARLY wasn't happy and nothing I could do seemed to help.  She'd been really weird and high strung before, but cagemate was her saving grace.)

Female, about 24 months.  (Not spayed.  Very, very rapid tumor growth.  Surgery probably wouldn't have given her much more time.  Spent some nice days together than then euthanized for her comfort considerations.

Female, about 9 months.  (Not spayed.  Sudden death with no symptoms of any sort.  Didn't do a necropsy).

Male, 26 months.  (Intact.  Pervasive metastatic breast cancer.  Did alternative homeopathic therapy which seemed to greatly slow spread and make him feel a LOT better...euthanized about 6 months after diagnosis when he seemed less comfortable).

Female, 26 months.  (Unspayed...She had slow decline after a bad bout of pnemonia, even though it was successfully treated.  She passed away quietly during the night without obvious signs of pulmonary distress).
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Rzrwyre on January 11, 2011, 01:46:55 AM
When people ask me how long rats live, I tell them that at two years, I feel like if they pass on, well, I didn't do anything drastically wrong!  I tell them 2-3 is a pretty good lifespan but some go sooner, esp. due to their tendency to have cancer or flare ups of myco, etc., but that most rats I've known did well to get to 2 1/2 years.  I've known of a good number to be 3 or close to...but after 3, they tend to be kind of extraordinary.

I had one friend who had her "old man rat," a little dumbo boy with these HUGE, floppy ears.  He was narcoleptic and he'd sit on top of his cage and doze off, and with his little chin tipped over the edge of the cage, his big ol' ears would totally droop down to the sides of his head.  It was very endearing.  (He was still plenty active, too...but he certainly took his share of naps).  I don't know how long he made it, but I think he was nearing 5 1/2 when I met him.  Still had good body mass, etc.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: rat patrol on January 11, 2011, 05:34:53 PM
new to the forum...
I had a rat from my highschool science room i took home at the end of the year..1982....
he lived 8 years and finally died per the vet from a stroke. he was huge, name was " dad rat". my father did not like the name...
after almost 30 years just bought 2 hoody's,,, male.... here we go.. great forum.
rat patrol
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Rzrwyre on January 12, 2011, 01:06:38 AM
Wow!  8 years!  Mutant?  Alien rat?  Very cool.  Enjoy your new kiddos.  Yay!
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Alicia on January 12, 2011, 02:44:59 AM
My oldest rat currently is 37 months, 17 days old. He is a fawn dumbo dwarf, adopted from an amazing breeder in Renton, WA. He has never been sick a day in his life, but has lived on antibiotics and in a homemade e-collar for the past week. He was attacked by a spayed rescue girl (after proper intros over many weeks) once they were placed in a cage together with his two other dwarf "brothers." He is still going strong, and will have his 8 surgical staples removed in a few days.

I've had other dwarf rats live 3+ years, but hve also heard of pet store rats living 5+ years. Honestly, diet plays a HUGE roll in health, and it isn't species-specific.

Pets fed a mainly processed diet of lab blocks, "rat food," seeds, kibble, etc. (whether it be rats, dogs, cats, wolves, cougars, monkeys, etc.) will live a much shorter life than those fed a fresh food diet. I used to feed my rats lab blocks and a mixture of dried fruits, veggies, cereals, pastas, etc., and never got more than 2.5 years out of them. Since switching to mainly fresh foods (I'll give canned and the occasional dry mix when I'm in a pinch), I've seen healthier rats living longer lives. I've cut out corn from their diet completely, and fix them fresh meals twice a day, (I'll also prepare a few days in advance and refrigerate, when I know I'll be short on time.) and I've never had healthier rats! I've only had one rat develop an URI in the past few years, and I know diet is why they're so healthy. Same thing is true for dogs and cats; fresh foods and/or a raw diet drastically improves their health and extends their life.

Think about your own health; if you ate cereals and fortified foods and fast food ONLY, how healthy would you really be? We need fresh fruits, vegetables, and lesser processed foods in order to remain healthy. It's just as important for our little furry friends! Even if you can't do an all fresh food diet, giving them fresh foods a few times a week can significantly improve their health. Try it. What do you have to lose? (Organic baby food is so easy and oh-so-good for them!)


Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Sorraia on January 12, 2011, 08:55:02 PM
The problem with trying to compare breeder-bred rats to pet store rats is what breeders do you include? Not all breeders are equal. Just because this, that, and the other breeder claims to be breeding for health and longevity, are they REALLY succeeding? How are they attempting to accomplish it? If you have one breeder who is working very diligently at improving their rats and is successfully producing rats that live to 4 or 5 years old, is it fair to lump them with another breeder who isn't working so diligently and whose rats are only living to 2 years? If not, how do you make that judgment? How much do you play into politics? Its a LOT more complicated than a blanket statement of "Breeder rats are better than pet store rats." Some breeders really are no better than pet stores.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: CrazyFarm on January 12, 2011, 08:58:19 PM
Many moons ago, a rat chose me in a pet store. A fawn hooded male, he narrowly escaped being lunch for a reticulated python by bounding out of the rubbermaid container and into my lap. I have no idea how old he was when I got him, but he grew to nearly two pounds, lived just over 7 healthy years with me, and saw dozens of other ratties come and go, before finally passing quietly without any signs of illness on the morning of October 16th, 2007.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: WildRatsRu on January 23, 2011, 04:08:45 PM
So, has anyone tried to do some statistical analysis of the data?
   
I'm going to put the data in an Excel spreadsheet. If anyone is willing to help, please let me know. I'll start from the first topic of the thread and someone else could start from the last.
The order of columns I'm going to use is as fallows:
origin - gender - color - marking - coat type - body - lifespan - cause of death

Example:
store - m - agouti - hooded - rex - dumbo - 15 - suspected brain tumour
breeder - f - black - self - standard - standard - 24 - pituitary tumor

For now, here is some statistics on the lifespan of fancy rats in Russia (in months, average standard deviation):
all varieties (376 records): 22 8
dumbo rex (20 records): 20 8
agouti standard standard (36 records): 26 8
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Hitchhiker on January 24, 2011, 03:13:15 PM
How about spayed/unspayed too?
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: WildRatsRu on January 24, 2011, 06:04:14 PM
In Russia, rat owners very rarely spay their pets, so I didn't take it into consideration when I was analyzing the data from Russian rat forums. In contrast, neutering seems to be quite popular in the States, so I think you are making a good point here, Hitchhiker, and I should definitely take it into account.

What I'm most interested to know though is the average lifespan of different varieties of rats, and, unfortunately, the survey does not provide this information :-(
Anyway, I went through the first 5 pages yesterday, filtering out bias and less reliable information. It turned out that the average lifespan of rats in Russia and the States is the same.

both genders (218 records): 21,7 9,0
females (91 records): 22,7 8,6
males (66 records): 19,9 8,5

In Russia:
all varieties (376 records): 21,8 8.2
dumbo rex (20 records): 20,3 8,2
agouti standard standard (36 records): 26,1 8,5
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Rzrwyre on January 25, 2011, 12:30:18 AM
Interesting!
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: WildRatsRu on January 25, 2011, 01:27:44 AM
What also is interesting is that Russian data does not reveal any significant deference in lifespan between males and females:
females (230 records): 21.9 7.8
males (145 records): 21.6 8.8

10 pages is done. The average lifespan has now bumped up to 22.3 8.6 (331 records).
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: WildRatsRu on January 29, 2011, 08:56:18 PM
It's done! I went trough the first 660 posts and here is what I've got:
both genders (606): 23,3 8,7
females (191): 23,0 8,6
males (159): 23,1 8,5

neutered/spayed (28): 24,8 7,4
intact (52): 26,4 8,8
I might have made a few mistakes, putting "spayed" instead of "unspayed".

I didn't filter the data very consistently, so someone else can get something pretty different. One of the moderators here, kmw, also tried to summarize the data, but I couldn't find his results.


PS: The spreadsheets can be downloaded from here (+ some data on lab rats):
http://translate.google.com/translate?js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&sl=ru&tl=en&u=http%3A%2F%2Fwildrats.ru%2Fviewtopic.php%3Ff%3D17%26t%3D211%26p%3D4689%23p4689
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Rzrwyre on January 30, 2011, 01:31:24 AM
This has turned into what seems like a strange obsession!  MOST of our rats are living about 2-3 years.  Man, I just consider every day with my rats as being a blessing!  I've not been as blessed as many, but...you know, it's like having a dad who only lived till 40...you don't know anyone did anything wrong.  Some kids fall over dead at age 17 from heart attacks.  (I knew two who did!)  You do the best you can for that rat.  If you're a breeder, you do the best you can for the future generations.  And one way or the other, quantity isn't even always quality.  Enjoy your blessings and go from there!
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Stacy M on March 04, 2011, 10:27:03 AM
I think a small problem with analyzing the results from these numbers, while they may give a general idea, is that, who posts in that post?  People tend to want to post if they have longer living rats, or tragically young rats.  So I think the data is kinda flawed, unless someone actually decides to survey, and PM a bunch of random people, to take that out of the equation.

Also, I've been hearing a lot (especially on other forums but here too) about why don't breeders have hard evidence that their rats live longer.  Well, first off, any good breeder will have health records and make them available to you.  Second, you can't lump them all together, for "breeders as a whole", as who decides who gets included?  I know who I'd like to include, but I think it is better to look at the health and longevity of rats from individual breeders.

Also, as to breeder rats living longer, I suppose it depends what you mean.  Well bred rats shouldn't be dying young of cancerous tumors and other heritable diseases, so the overall average might be better.  But, that doesn't mean they can breed rats that consistently live 3.5-4 years.  Short of diseases being removed allowing them to live longer than they would have with disease, I don't think there's much they can do to improve lifespan significantly.  If I ever got from a breeder, I'd be far more concerned about health problems than longevity, quality vs quantity kind of thing.  Age of death is only a small piece of the puzzle.  Some pet store rats that live to four have horrible problems.  I'd rather be more concerned about having rats that don't have all sorts of health problems.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Momofsweetie on April 15, 2011, 01:15:40 AM
There is no proof that a spayed female rat lives longer than one not spayed.
I know people that have spayed rats and they live to be 2-3 years. Same life span as one not spayed.  Sometimes rats can live longer whether spayed or not. Genetics play a part, as well as environment.
As far as males, I haven't seen much difference either.
What we must understand is that rats have a fairly short life with us humans. Its not like a ferret, guinea pig, rabbit, cat or dog. As long as we love ratties for the time they are here, THAT IS WHAT COUNTS.. Give them the best life they can have..

Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Stacy M on April 15, 2011, 02:16:02 AM
There is no proof that a spayed female rat lives longer than one not spayed.
I know people that have spayed rats and they live to be 2-3 years. Same life span as one not spayed.  Sometimes rats can live longer whether spayed or not. Genetics play a part, as well as environment.
As far as males, I haven't seen much difference either.
What we must understand is that rats have a fairly short life with us humans. Its not like a ferret, guinea pig, rabbit, cat or dog. As long as we love ratties for the time they are here, THAT IS WHAT COUNTS.. Give them the best life they can have..


Err, you realize that is anecdotal evidence, the equivalent of my grandma smoke like a chimmney and drinks like a fish and is 100...it happens, doesn't mean it is a good idea or the norm though.  No one here has ever said it guarantees a longer life.  But it prevents lives being cut short that would have otherwise been cut short by mammary tumors, pyometra, uterine cancer, etc.

Also, part of giving them the best life possible includes understanding the illnesses that kill them and their lifespan...  None of us would be here if we thought their short life span made them not worth it.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Onewonder2017 on June 27, 2011, 12:14:08 PM
They say most rats live for 2-3 yrs, but my uncle had a rat that lived for 4 yrs.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: proudratmommy on June 28, 2011, 03:21:29 PM
The eariest I've lost one is at 9 months  :'(  and eldest was 3.5 years.  But I've got a mixed pack now of all sorts of ages. Including a grumpy, active old man of 4 years!! He has back leg problems but is 100% there mentally and gets around just fine. Heaven forbid you try to help him into a box or tunnel  :eek:
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Paniz on August 27, 2011, 02:04:27 PM
I had a feeder girl who lasted just 4 years. My second oldest was 3 1/2, all others died around the age of 2. I really couldn't tell you what makes some liver longer. I'd say love, good diet, and a clean cage. I'm sure genetics plays a part to but like I said, my longest lived rat was a feeder. My hypothesis on why she was so healthy all her life was because she was exposed to so much early on. Cramped conditions and lots of strange rats. It must have built up her immune system. She was a trouper and I miss her so much.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: AstridBeatrix on November 12, 2011, 02:16:38 AM
One of my ratties  :heart:, Gracie, (rescued and not spayed) lived to almost 5 years (a long, healthy and happy life =)..and Aeris and Sahara  lived for 2 1/2 years (spayed). My current ratties, Astrid and Beatrix (rescued and not spayed, will be 9 months old soon  :occasion1::D   





Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Kinzy on February 26, 2012, 12:42:01 AM
My rat, Moses and his brother, Noah came to me when they were about a year old. Noah died from a respiratory infection due to tbat Hartz bedding crap at about three years, two months. Moses is still with me and will be foir next mlnth. He has old-age problems but something I do know to help them is that glucosamine/some similar word that starts with a 'ch' sound. It helps with their spinal problems and back leg paralysis.  Link to the site with dosagees in a few.
But I think these two must have come from a breeder before I got them from a poorly educated family friend. They were in a tiny finch cage on cedar bedding! Both guys were small but Moses seems to be aa runt. Hes about the size of an average 8 mo old male. And hes a dumbo, but there slivhtly down instead of really exaggerated. Or he could be from Petco so I dunno for sure.
Ive had one from a breeder that only lived to be 1 1/2 years. True was two and mine and my sisters rats are aboit 1 1/2 to 2 and doing fine. None were spayed or neutered but our girlie got a huge tumor on her vaginal/anal area that worked up her nelly and actually began to grow on the outside of her skin. She didnt seem like she was in pain and could still get around but we let her go nefore the tumor got worse.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: Breakthenight on March 26, 2012, 08:13:24 PM
I'd really like to see some actual results be calculated. I am also especially interested in seeing the difference between spayed and unspayed females. My momma rat had five daughters who lived to adulthood, she and all her girls were spayed. None of them ever had mammary tumors, though there was a host of other genetic issues with that family (as there are with many rescue rats). The female I kept from that litter lived to be 28 months to the day, which is a decent life span for the rats I've had. I don't know how old momma was when she died, she was an adult when I brought her home. Considering the high instance of mammary tumors, I'd love to see if spaying makes a difference.

My five month old brother/ sister pair are spayed and neutered. Their momma, and 5 sisters are all spayed. I'm interested in seeing how their health progresses as a year, since all the people who adopted from the litter are staying in contact. I think someone needs to very accurately record this data(no mistakes!, maybe a team to check, with data entry experience) and have the results posted. I think it should NOT include rats who die as "infants" (team would have to decide what age constitutes old enough to be considered, I'm thinking weaned.)

My rats have never really got past the 2 1/2 year old mark that I know of (rescues). Three would be a landmark for me, four is unimaginable to me. Not saying rats can not possibly live to be 4,5,6 or more, but quite often I think someone may have gotten dates mixed up, or miscounted, and the 8 year old rats we hear of, may have lived to be quite the ripe old age of four or so.
 

Title: Just over thirty five months for a spayed female rat
Post by: parentologist on June 09, 2013, 07:05:24 PM
Occasionally got antibiotics for rat respiratory whuffling.  Developed hind end degeneration towards end of her life, but always was able to get around.  Died in her sleep one night at over 35 months old.  We miss her.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: paulakim on July 31, 2014, 06:48:10 AM
Hi I am new on here and was just reading this thread, I have had a lot of rats over the last 30 years, and the one thing I have found is that female rats have the shortest life span, nearly all of mine have only lived to around the 2 year mark, and most have developed tumors. All the males I have had have lived to around 3 1/2 - 4 years, with only the odd exception, and nearly all seemed to die of old age, of having some kind of paraliseation involving there back legs. 
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: natalie45205 on August 19, 2014, 12:23:33 PM
I have been a rat mommy for about 15 years. I have had around 65 to 70 rats in that time span. All my rats that I have had have been petstore rats. When I first started taking care of them I noticed they only lived roughly 2 years or less. So I did a ton of research on what was good for them and what they liked. I did notice the ones that got chicken and meat in their diet along with a few veggies and lots of fruit rarely got mycoplasma or mammary tumers. Now that could be better genes than the others but most of the ones that had a variety of good healthy things in their diet lived to right about 4 years. Hope this helps.
Title: Re: Questions Re: Rat Life Expectancy Survey
Post by: KitKat on June 27, 2015, 02:34:23 AM
I once had a common brown Norway Rat (which a lady down the street got from someone else who claimed they had found it as a baby and kept as a pet, however he was so docile I sort of doubt the claim.. who knows). She didn't like rats so she gave him to me. His name was Batty. He lived for 6 years and was the best rat I ever had! =)