It suggested that the egg yolk antibody IgY was absorbed to the cyc-blood through the gasintestinal wall of the suckling piglets (11 or 13-days-old).

• 发现部分哺乳仔猪外周血清抗大肠杆菌(K88)免疫活性升高，提示蛋黄抗体可通过哺乳仔猪(11-13日龄)胃肠道壁吸收入全身血液循环。