I have a 5yr old medium breed.
She usually cycles every 5months, however she is now 7 and a half months since her last season, she’s on a raw diet and gets daily wheat germ oil, her coat is gleaming!

Is it worth giving evening primrose oil to try and help her into season ? Or anything else that may help..
(We are hoping to breed, she’s fully health tested and eye screened) we own the stud dog too - he has on and off over the last 5/6 weeks been sniffing her more and teeth chattering after she’s had a pee outside, and he will Mark over her pee.

I wouldn't bother with it.  Sounds to me as if she's pretty darn close anyway.

I'd also be pleased she has gone longer as sometimes short inter season intervals can be non ovulatory.

Ty for the replies.

Fingers crossed she actually starts her season soon ! X