Hi all, new here but could really use some advice. We bought a registered 6 year old cow with some unique and rare genetics. This cow was kept as a pasture pet and was quite overweight and was never exposed to a bull. We put her with a bull and was vet confirmed as pregnant 4 months later. Come her due date, she never calved. She obviously slipped her calf over winter, but has never cycled since. We have had her vet checked again (actually twice more) and he found no cysts, no tumors but did comment that her uterus felt thick. She does act "bullish" but is also the lead cow. We have given her lutalyse and cystorelin and put her back with the bull. (just got our bio-pryn results today to confirm she is still open) Was thinking of trying a complete synchronization protocol to see if that would jump start something. Normally, we would have already beefed her, but her lineage is hard to find. We are assuming her "obese pet" days have done some harm. Was wondering if anyone had any idea on what her issue could be before we cut our losses, hang our heads in regret and cull her as beef.