7日龄内仔猪肠道吸收猪瘟抗体的初步研究

AN INITIAL STUDY OF THE ABSORPTION OF ANTIBODY THROUGH THE INTESTINE IN SEVEN-DAY-OLD PIGLETS

对 2 7头出生 7日龄以内健康的仔猪 ,采用隔离饲养 ,全部人工喂养牛奶方法 ,并在牛奶中添加不同剂量的猪瘟抗体 ,喂养不同时间 ,以空白和肌肉注射作对照 ,利用间接血凝试验 (IHA)方法测定其仔猪血清猪瘟抗体效价的变化。结果表明 ,随着猪瘟抗体剂量的增加 ,仔猪血清猪瘟抗体效价增高 ;在相同剂量的组别中 ,随着饲喂猪瘟抗体日龄的延长 ,吸收总量的增加 ,但吸收比例逐渐降低 ,效价也降低。该试验说明 ,初生仔猪消化道吸收猪瘟抗体与吃乳乳中抗体剂量和饲喂时间有关 ,但口服肠道吸收不全 。

Twenty-seven neonatal piglets were reared artificially with milk in isolation. The milk was supplemented with antiserum against HCV at different dosages for different duration of time. Serum samples were collected every day and the titer of antibody in them was tested by IHA. The results showed that the titer of antibody in the piglet serum increased with the dosage of anti-body. In the treatment groups of the same dosage, total absorption increased and absorption rate decreased with treatment duration.