I have 1 cow out of 60 that wont breed back. She was a heifer last year and had an excellent calf last march. Weaned the big calf off her in October. She's been with a bull from June - March and i noticed she is still coming back into heat. I saw the bull riding her the last 3 heat cycles. Is there something permently wrong with her. Or something we can do to fix this, besides sending her down the road. I heard sometimes after heifers have there first calf some of them don't breed back for some time. If anyone has an info it would be appreciated. Thanks