7Donovan D C, Franklin S T, Chase C C, et al. Growth and health of holestein calves fed milk replacer supplemented with antibiot- ics or enteroguards[J]. Journal of Dairy Science, 2002, 85 (4): 947-950.
8Kritas S K, Govaris A, Christodoulo P G, et al. Effect of bacillus li- cheniform is and bacillus subtilis supplementation of ewes feed on sheepm ilk production and young lamb mortality[J]. Journal of Veterinary Medical, 2006, 53(4): 170-173.
9Elsen R J. Bistrian B R. Recent developmentsin short chain fatty acid metabolism[J]. Nutrition, 1991, 7( 1 ): 7-10.
10Heinrichs A J, Jones C M, Heinrichs B S. Effects of mannan oligo saccharide or antibiotics in neonatal diets on health and growth of dairy calves[J]. J Dairy Sci, 2003, 86( 12): 4 064-4 069.
