Jensen P. Thode
The State Veterinary Serum Laboratory, Bülowsvej 27, DK-1870 Copenhagen V, Denmark
Acta Vet Scand. 1978;19(3):475-7. doi: 10.1186/BF03547620.
The specific trypsin inhibitor in porcine colostrum first described by (1957) is assumed to protect maternal antibodies in colostrum during absorption from the gut of the neonatal piglets ( 1973). Investigations of have shown that the serum levels of IgG and IgA in newborn suckling piglets depend on both the immunoglobulin and the trypsin inhibitor levels in the colostrum of their mothers. Accordingly, the sow colostrum trypsin inhibitor (SCTI) is essential in order to ensure optimal systemic antibody protection to the newborn and young piglets. The secretory IgA in colostrum and milk, which gives local passive immunity to the gastro-intestinal tract of the piglets ( 1973), is assumed in itself to be relatively resistant against proteolytic degradation ( 1968).
最早由（1957年）描述的猪初乳中的特异性胰蛋白酶抑制剂，被认为在新生仔猪从肠道吸收初乳期间可保护其中的母体抗体（1973年）。对……的研究表明，新生哺乳仔猪血清中IgG和IgA的水平，既取决于其母亲初乳中的免疫球蛋白水平，也取决于胰蛋白酶抑制剂水平。因此，母猪初乳胰蛋白酶抑制剂（SCTI）对于确保新生仔猪和幼龄仔猪获得最佳的全身抗体保护至关重要。初乳和乳汁中的分泌型IgA可使仔猪胃肠道获得局部被动免疫（1973年），其本身被认为相对抵抗蛋白水解降解（1968年）。
