Quote Originally Posted by rocko View Post
Thank for all the answers. But if I wanted to produce about 50 rats a week that were the size of smalls how many females do you think that i would need to meet that mark.And if you can figure it out over count a couple more just to be safe.
That will be around 5 girls a week, with at least 5 more for the 3 weeks leading up to birthing, so I suggest 55 female rats. Always a good idea to have more than you think you need, nature isn't on a set schedule. (thats 10 extra rats just in case!)