Figure 1. Hormonal and Ovarian Changes During the Estrous Cycle
Figure 2. Hormonal Changes in the Dog and Cat
Figure 3. Ovex experiment on the effect of season on estradiol feedback in sheep
Figure 5. Changes in Estradiol Feedback that Regulate Seasonal Anestrus in Sheep
Figure 6. Human menstrual cycle
Figure 7. Phases of the menstrual cycle
Figure 8. Variation in length of mestrual cycle
Figure 1. Hormonal and Ovarian Changes During the Estrous Cycle
Figure 2. Hormonal Changes in the Dog and Cat
Figure 3. Ovex experiment on the effect of season on estradiol feedback in sheep.
Figure 4. Diagram on the role of photoperiod and pineal gland on steroid feedback and seasonal estrous cycles.
Figure 6. Human menstrual cycle
Figure 7. Phases of the menstrual cycle
Figure 8. Variation in length of mestrual cycle