Lack of acid-resistant trypsin inhibitor in mare's colostrum: short communication.
Mare's colostrum was collected and examined for the presence of trypsin inhibitors. It was found to contain a low level of trypsin inhibitor which could be denatured by 2.5% trichloroacetic acid and, therefore, it clearly differs from the acid-resistant colostral inhibitor of Artiodactyla and Carnivora. This finding is exceptional for a species that concentrates IgG in the colostrum and whose newborn absorbs colostral proteins non-selectively by the gut. It appears that the presence of colostral trypsin inhibitor is not essential for the transmission of maternal immunity via the colostrum and the gut.
Baintner
K
K
Department of Physiology and Chemistry, Faculty of Animal Science, Pannon Agricultural University, Kaposvár, Hungary.
Csapó
J
J
D000818:Animals; D003126:Colostrum / Q000737:chemistry* / Q000187:drug effects; D005260:Female; D006736:Horses; D014238:Trichloroacetic Acid / Q000494:pharmacology; D014361:Trypsin Inhibitors / Q000032:analysis*
D014361:Trypsin Inhibitors; D014238:Trichloroacetic Acid