| If potential mates are too scattered during the breeding season, some females in oestrus may fail to encounter suitable male partners. |
| Should consider managing cycle to ensure mare has ovulated and finished oestrus before start of competition. |
| The tissue concentrations of anandamide and 2-AG were reduced in the oestrus phase, compared to dioestrus. |
| The oestrus cycle is controlled by a complex system involving different hormones produced in the brain and ovary. |
| It is concluded that the endocannabinoid system undergoes to adaptive changes between the oestrus and dioestrus phases. |
| The length of the oestrus cycle may vary but it usually ranges from about 17 to 24 days. |
