共 17 条
- [11] POUTREL B, 1983, B SOC VET PRATIQUE F, V67, P659
- [12] SERIEYS F, 1975, SEMINAR CONTROL MAST
- [13] ENVIRONMENTAL MASTITIS - CAUSE, PREVALENCE, PREVENTION [J]. JOURNAL OF DAIRY SCIENCE, 1985, 68 (06) : 1531 - 1553
- [15] INCIDENCE AND CONTROL OF MASTITIS DURING DRY PERIOD [J]. JOURNAL OF DAIRY SCIENCE, 1974, 57 (11) : 1341 - 1349
- [16] [No title captured]
- [17] 1985, SAS USERS GUIDE STAT