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Incas genetics

21 17:21:49

Question

Inca
Hi Emily,

I currently have four ratties, but my questions are about my rat Inca. She is now 7 months old and I adopted her from a very reputable breeder at 6 weeks. I was told before and upon adaption that she was a variegated pearl dalmatian down-under dumbo, and was given her parents names if I wanted to look them up on the breeders web page. When I got home, I did, and found out that her sire was a dwarf! However, I didn't care because I adore my rat Inca no matter what. But I really don't know if she is a dwarf or not, especially since the breeder never mentioned it to me. Inca has always been extremely small from what I'm used to in rats. Now that she is full grown, she is easily the smallest of all four. She is very busy (but adorable:) ), and doesn't learn as fast as the others and catch on to things the way they do. She is about 7 inches long from nose to tail base, but is much more slender, with a petite frame and bone structure, and light weight. She acts very healthy, curious, and eats normally to if not more. Could she possibly be a full dwarf and the breeder didn't know at the time? Or is she what they call a fault? How accurately can a breeder tell at 6weeks if the rat is going to be a fault, normal, or dwarf if one of the parents is standard sized?
I'm just curious what she is!

Also, I'm curious about the texture of her fur. Both her parents family tree show nothing but standard fur in her genetics (but I don't know about their recessive genes). But Incas fur is kinda long, longer than any of my other rats, and very very soft. I can't figure out if she may be a satin, or if this is a dwarf trait. Is it possible to have a fault in a fur type as well?  Please let me know what you think! Thank you!

Tara

Answer
Your have a beautiful rat! If both parents were not dwarf then there is no way she is a full dwarf. Though, she seems to have inherited the gene for the small size, Generally the coat is a dwarf characteristic as well but in order to be sure where this gene came from you would want to see the family tree from several generations. Its very hard to tell the size a rat will be at the age of 6 weeks because they are at this point still the same size.

Thanks for the question

Emily