Here is an explainantion of the breeding cycles. there is 5 days in the breeding cycle 3 of which are rise, peak, fall. Those three days are when the meeroos will breed. They do not need to match but at least be with in one (.. ie rise to a peak or peak to a fall). What i have determined is that the meroos are on a 30 hour breeding cycle over the 5 days. Their growing to the full fertility does not count in the 5 days.

based on the following chart cycle is as follows:

misc ------ rise peak fall -----
aggressive rise peak fall ------- ------
shy peak fall ----- ----- rise
Friendly fall ----- ------ rise peak
lazy ------ ---- rise peak fall

Meeroos do not appear to breed at all when in ------.
The personality of the meeroo determines which phase the season starts in of the cycle.

any questions you can reach me inworld Destynee Capelo
I hope this helps in the breeding of your meeroos.