New BioPRYNhfr-25 blood pregnancy test for heifers
Pregnancy Diagnosis in Dairy Cows using PAG Levels in Blood and Milk - YouTube
10 Best Rapid Pregnancy Blood Tests – Review And Buying Guide – PDHRE
Milk/Blood Pregnancy Diagnosis. How do they work? | WVC
Identification of cow-level risk factors and associations of selected blood macro-minerals at parturition with dystocia and stillbirth in Holstein dairy cows | Scientific Reports