Also covered are breeding systems and breeding methods.
Breeding Methods includes: inbreeding, outcrossing, and linebreeding.
Breeding Systems explains the different styles of putting breeding rats together such as harem breeding, colony breeding, and monogamous pairing.
We also include an explanation of what differentiates a "line" as well as what defines a "strain."
Learning and understanding the different aspects of breeding is beneficial to producing and maintaining good lines.