Klobasa F, Werhahn E, Habe F
Institut für Tierzucht und Tierverhalten (FAL) Mariensee.
Berl Munch Tierarztl Wochenschr. 1991 Jul 1;104(7):223-7.
The gastrointestinal tract of newborn piglets is permeable for intact immunoglobulins ingested with the colostrum. The duration of this passage was investigated by administering hourly rations of 25 ml of either porcine or bovine colostrum for 6, 12, 18 or 24 hrs after birth. The plasma concentrations of the subclasses porcine IgG, IgM and IgA or bovine IgG1, IgG2, IgM and IgA were determined at 12, 18 and 24 hrs after birth and on days 3 and 6. Feeding periods of 6 hrs resulted in plasma Ig levels of the same order of magnitude as observed in natural rearing. These levels were not substantially increased after prolonged feeding. The 6% gain from 6 to 12 feedings seen with porcine colostrum as compared with a gain of 24% for bovine colostrum points at an earlier closure of the intestinal wall for the species-specific proteins. There was no further increase of Ig permeation after 12 hourly feedings. Growth performances and losses were identical in all groups.
新生仔猪的胃肠道对于初乳中摄入的完整免疫球蛋白具有通透性。通过在出生后6、12、18或24小时每小时投喂25毫升猪初乳或牛初乳来研究这种通透持续时间。在出生后12、18和24小时以及第3天和第6天测定猪IgG、IgM和IgA亚类或牛IgG1、IgG2、IgM和IgA的血浆浓度。6小时的投喂期导致血浆Ig水平与自然饲养中观察到的处于同一数量级。延长投喂后这些水平没有显著增加。与牛初乳24%的增加相比，猪初乳从6次投喂到12次投喂有6%的增加，这表明该物种特异性蛋白质的肠壁封闭较早。每小时投喂12次后，Ig的通透没有进一步增加。所有组的生长性能和损失情况相同。
