Pregnancy detection in cattle can be simple and fast. The Alertys OnFarm Pregnancy Test detects pregnancy-associated glycoproteins (PAGs) in whole blood (EDTA) as early as 28 days after breeding on heifers or dry cows and 70 days after calving on lactating cows. Use this on-farm blood pregnancy test to get answers quickly and on your schedule. This is a complete kit including the test, syringe, needle and required blood tube.