1Klobasa F, Werhahn E ,Butler J E.R.egulation of humoral immunity in the piglet by immunoglobulins of maternal origin [J].Research in Veterinary Sci- ence, 1981,31 (2) : 195 - 206.
2Muralidhara K S,Sheggeby G G,EUikerp R,et a/.Effect of feeding Lac- tobacillus on the coliform and Lactobacillus flora of intestinal tissue and feces fi:om piglets[J].Journal of Food Protection, 1977,40 (5) : 288 - 295.