01152nas a2200157   4500000000100000000000100001008004100002260004400043100001300087700001400100245019400114300001000308490000800318520065400326022001400980       2009                            d  c02/2009bM. & H. Schaper GmbHaHannover1 aP Bender1 aH Bostedt00aDetermination of IgG and IgM levels in sera of newborn calves until the 10th day of life by ELISA and description of their correlation to total plasma protein concentration and GGT activity  a44-520 v1163 aThe aim of this study was the determination of IgG and IgM concentrations insera of 15 vital and healthy calves from the day of birth to the 10th day of lifeusing two ELISAs exclusively developed for this purpose. We investigated if andto which extent the sera profiles were correlated with antibody levels in thecolostral milk administered, with GGT activity and with total plasma proteincontent. Due to the assays’ high sensitivity, traces of IgG and IgM in calf seracould be determined prior to the first uptake of the foremilk. Throughout thecolostrum administration period until the 12th living hour, IgG and IgM levelsremarkably increased (P  a0341-6593