Cut-off Point of Glutathione Peroxidase(GSH-PX) for the Diagnosis of Endometritis in Dairy Cows

The cut-off point of a diagnostic test is the determination minimum value at which an individual can be diagnosed as sick. To obtain good position, analysis carried out using statistical ROC Curve (Receiver Operating Characteristic), used in determining diagnosis with highest sensitivity and specificity. glutathione peroxidase (GSH-Px) for uterine diseases not described. tolerable described 130 U/g Hb; has been limit under it marginal deficiency Se. Therefore, objective this work was to determine GSH-Px values that allows diagnosing cows endometritis, dairy herds province Santa Fe, Argentina. We 115 Holstein between 21 56 postpartum days, from establishments Blood samples were obtained by puncturing coccygeal vein GSH-Px. At same time, status characterized two groups: healthy (VS, its initials Spanish) either clinical subclinical (VE, Spanish). create curve, VS VE diagnoses must entered binary system 0 (VS) 1 (VE). results indicate or cut 222 Hb 81.4% specificity 33.9%. That say, above value, possibility suffering endometritis decreases significantly. conclude group could considered future complementary tool diagnose endometritis.