The relationship among plasma progesterone, number of corpora lutea, and foetal number was assessed in Rockland-Swiss albino mice. While number of corpora lutea and foetal number were significantly correlated, neither was related to plasma progesterone level. This finding in the mouse is similar to results reported in the rabbit.
Simon, N G; Bridges, R S; Gandelmann, R;  Rutgers - the State Univ., Newark, NJ (USA). Inst. of Animal Behavior)
- Rutgers - the State Univ., New Brunswick. NJ (USA). Dept. of Psychology