Hi,
It is very difficult to guess the age of a Guinea as so many factors contribute to its growth but on saying that our guess would also be in the region of 4 to 5 months. This is based on the following, Your piggie currently weighs 20.9 ounces which is approximately 593 grams. As we have said a very rough calculation can be made with regard to weight - We have based everything on the minimum.
- A weaning weight of 250 grams at approximately 3 weeks
- At Pet shop say another 3 weeks
- At previous owners for 4 weeks
His current weight 593 grams - 250 weaning weight = 343 grams
Divide 343 grams by average expected ( estimate ) weekly weight gain of 30 grams = 11 weeks
So adding all up all the guesses
= 21 weeks = 5 months... a pure guess..
It is a good idea to weigh your piggie weekly at approximately the same time and day of the week, as your piggie is still young you will see a gradual weekly weight gain which will even out when he becomes fully grown in about 12 to 15 months..Also as he's still quite young he has plenty of time to make up any lost ground.. We plot charts of all our piggies as the important thing to look for in piggies weight is trends..
We have included a link about weighing Guinea Pigs..
http://www.theguineapigforum.co.uk/...ght-checks-and-overfeeding-guinea-pigs.38805/
In the meantime can you please add your location to your profile as it helps fellow members give any answers to questions you may have that may be area/country specific. This can be done by clicking on your username, then personal details, then add location.....
Lisa & Ali...
P.S He's absolutely gorgeous....