Insane 32 Rat pinkies 1 Litter

[Redneck_Crow]

I think its mostly the Male. My rat rack has 6 males and 25 females all dropping 8-18 pinks. I think the genetics are coming from the Rex Gene of the male. When ever a Tub that has a rex female or male the litters are huge.

Maybe not. The male might have great genetics, but the number of ova a female rat releases in a cycle is determined by her body, not the male's. The number of ova released and how many implant without being reasorbed are mostly what determines the # of babies. A female that releases a huge # of eggs at one time is creating the potential for a huge litter.