Patent ID: 7604950

Claim:
A method for detecting pregnancy in a cow comprising: (a) obtaining a sample from a first cow; (b) measuring a pregnancy-associated glycoprotein (PAG) level in said sample using an antigen-binding agent that recognizes the proteins of an acidic protein fraction of day 55 bovine placental tissue, wherein said PAG level comprises PAG-4, PAG-6, PAG-9, PAG-16, PAG-18, PAG-19 and Mon PAG, and wherein said antigen-binding agent comprises an antibody or an antigen-binding fragment of an antibody; and (c) comparing said PAG level with a control PAG level, wherein said control PAG level is or was measured using a non-pregnant cow; wherein an elevation in said PAG level in comparison to the control PAG level indicates that said first cow is pregnant.