5Soggarrd H.Microbials for feed:beyond lactic acid bacteria[J].Feed International,1990,11(4):32-37.
6Muralidhara K S,Sheggeby G G,Elliker P R,et al.Effect of feeding lactobacilli on the coliform and lactobacillus flo- ra of intestinal tissue and feces from piglets[J].Food Prot,1977,40:288-293.