4Dingwell R T, Leslie K E, Duffield T F, et al. Efficacy of intramammary Tilmicosin and risk factors for cure of Staphyloccus Aureus infection in the dry period [J]. J Dairy Sci., 2003, 86 (1): 159-169.
5Sol J, Sampimon 0 C, Snoep J J, et al. Factors associ- ated with bacteriological cure during lactation after therapy for subclinical mastitis caused by Staphylococcus aureus[J]. J. Dairy Sci., 1997, 80: 2803-2808.
6Wilson D J, Gonzalez R N, Case K L, et al. Compari- son of seven antibiotic treatments with no treatment for bac- teriological efficacy against bovine mastitis pathogens [J]. J Dairy Sci., 1999, 82: 1664-1670.
7Owens W E, Nickerson S C, Boddie R L, et al. Preva- lence of mastitis in dairy heifers and effectiveness of antibi- otic therapy[J]. J. Dairy Sci., 2001, 84: 814-817.
8Du Preez J H. Bovine mastitis therapy and why it fails [J]. Journal of South African Veterinary Association, 2000, 71: 201-208.
9Hillerton J E and Kliem K E. Effective treatment of Streptococcus uberis clinical mastitis to minimize the use of antibiotics[J]. J. Dairy Sci., 2002, 85: 1009-1014.
10Eskine R J,Bartlest P C,Tavernier S R,et al. Re- combinant bovine interleukin-2 and dry cow therapy: efficacy to cure and prevent intra mammary infections, safety and ef- fect on gestation [J]. JDairy Sci., 1998, 81(1): 107-115.
