1. Probiotics help boost feed efficiency;Baird;Feedstuffs,1977
2. Lymphatic tissue in germfree animals;Bauer,1968
3. Effect of dietary calcium lactate and lactic acid on faecal Escherichia coli counts in pigs;Burnett;Nature,1963
4. Protection activity induced by the bacterial vaccine, heat-killed Clostridium butyricum against Candida albicans infections in mice;Chen;Jpn. J. Med. Mycol.,1987
5. Lactobacillus cultures in brooder diets;Dilworth;Poultry Sci.,1978