Evaluación del método de detección del factor precoz de preñez (EPF) en cerdos. Importancia en el diagnóstico temprano de gestación. / [Evaluation of the method for early pregnancy factor detection (EPF) in swine. Significance in early pregnancy diagnosis]

ABSTRACT

Early pregnancy factor (EPF) is a protein detected in the serum of pregnant females in most mammals, before implantation of the embryo; its activity is detected by the rosette inhibition test (RIT). After preincubation of lymphocytes in serum of non-pregnant pigs, the mean titre of RIT was 10.80 +/- 0.32. The upper limit of the 95