So after further digging I was able to find that 4 of our largest suppliers in the US and one in Canada all supplement their production. There are more companies doing it without a doubt. As Jess mentioned it appears ARS is one of them. There are ways to hide your company name on imports, and anyone can go on Alibaba and order from these huge Chinese companies as long as you order a $2000 minimum.
Layne labs appears to import the most, with big cheese and rodent pro right behind them. Keep in mind these are all Chinese imports. Vietnam is also an exporter of feeder rodents. Most of the companies listed below not only order from China, they split their business between all 3 of the major suppliers there.
It is worth noting that multiple people have told me that Layne claims they import lab rodents only and don’t sell them as feeders. I’m curious what application labs would have for millions of frozen rodents?
USA
Rodent Pro
The Animal Works (Big Cheese)
American Rodent Supply
Layne Labs
Canada
MRS Imporium
