Time of Appearance and Origin of Some Poly-Morphic Proteins in Serum of Piglets

Abstract

For the application of polymorphic serum proteins in the parentage control it is important to know at which time after birth a safe phenotyping can be performed. In swine the presence of maternal (colostral) proteins in the blood during the first days of life may easily lead to an incorrect phenotyping. The purpose of the present study was therefore to establish the time of appearance of some polymorphic proteins commonly used in the parentage control, and to elucidate whether these proteins are due to autosynthesis or whether they are of colostral origin (1). In the latter case the time of disappearance of polymorphic proteins of maternal origin was ascertained.