Anestrus

1. pathological cause

2. Acquired anestrus

3. Ovulatory anestrus

4. Anovulatory anestrus

5. 1-Sub estrus 2-Unobserved estrus 3-Presisitent corpus luteum

6. 1-Anovulatory anestrus-I 2-Anovulatory anestrus-II 3-Anovulatoy anestrus-III

7. Congenital and Heriditary cause of anestrus

8. 1-Ovarian aplasia 2-Ovarian hypoplasia 3-Freemartin

9. physiological anestrus

10. ovulatory anestrus

11. Anovulatory anestrus

12. 1-prepubertal anestrus 2-lactational anestrus 3-postpartum anestrus

13. 1-Gestational anestrus