What is exceptable percentage of open . Cow's are 10-12 year old. Preg checking today and was not happy with the results. Ran about 20 percent open on a 75 day breeding . May 1st to July 4th breeding season . Weaned about 600 lb calves off them yesterday. Am I expecting to much ? Rest of the younger cow's running around 8 percent open
Preg testing Older cows ?
