4Aarestrup F M,Jensen L B.Presence of variations in ribosomal protein L16 corresponding to susceptibility of enterococci to oligosaccharides (avilamycin and evernimicin).Antimi-crob[J].Agents Chemother,2000,44:3425-3427.
5Ciba Limted,New antibiotic and process for its manufacture[P].Switzerland.Patent Speci-fication.1964,238,948.
6Wright E D.The orthosomycins,a new family of antibiotics[J].Tetrahedron.1979,35:1207-1236.
7Christine B K,Vester B.Interaction of Avilamycin with Ribosomes and Resistance Caused by Mutations in 23S rRNA[J].Antimicrobial Agents and Chemotherapy,2002,46:3339-3342.
8Engherg R M,Hedemann M S,Jensen B. The influence of grinding and pelletingb of feed on the microbial composition and activity in the digestive tract of broiler chickens[J].British Poultry Scienee,2002.569-579.
9Kaldhusdal M,Lovland A. The economical impact of Clostridium perfringens is greater than anticipated[J].World Poultry,2000.50-51.
10Filip V I,Jeroen D B,Frank P. Clostridium per fringens in poultry:an emerging threat for animal and public health[J].Avian Pathology,2004.537-549.