A pregnancy detection assay using milk samples: evaluation and considerations.

  title={A pregnancy detection assay using milk samples: evaluation and considerations.},
  author={Bradley C Lawson and Abid Hussain Shahzad and Karmella Ann Dolecheck and Edmond L Martel and Katherine A Velek and Denise L Ray and John C. Lawrence and William J. Silvia},
  journal={Journal of dairy science},
  volume={97 10},
Two experiments were conducted to evaluate a pregnancy-detection assay based on the measurement of pregnancy-associated glycoproteins (PAG) in milk samples. In experiment 1, milk samples were collected on the day of first pregnancy check (33-52 d postinsemination; n=119) or second check (60-74 d postinsemination; n=60). The accuracy in identification of pregnant and nonpregnant cows was 99% at first check. Only 6% of samples were found to be within an intermediate range of PAG concentrations… CONTINUE READING
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