Figure 1From: PreImplantation Factor (PIF) correlates with early mammalian embryo development-bovine and murine modelsPIF detection in viable embryo culture medium using anti-PIF-mAb-based chemiluminescent ELISA. Representative standard curve of PIF ELISA demonstrates that low levels of the peptide can be detected. The assay was linear where 2 ng/ml was the lowest detection limit.Back to article page