Mastitis control measures used on some Minnesota dairy farms |
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| Institution: | 1. School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, PR China;2. Department of Chemistry and Chemical Engineering, Lvliang University, Lvliang, 033000, PR China;3. Shanxi Jinshan Magnetic Materials Co., LTD, Taiyuan, 030008, PR China;4. Key Aboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education, School of Chemistry and Matericals Science, Shanxi Normal University, Linfen, 041004, PR China;1. Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee Institute of Agriculture, 2407 River Drive, Knoxville, TN 37996, USA;2. Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, St-Hyacynthe, Québec J2S 7C6, Canada;1. Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA;2. MSU Veterinary Diagnostic Laboratory, 4125 Beaumont Road, Lansing, MI 48910, USA;1. Medicine Creek Bovine Health and Consulting, PO Box 614, White Sulphur Springs, MT 59645, USA;2. Department of Veterinary and Biomedical Sciences, College of Agricultural Sciences, Pennsylvania State University, 108C Animal, Veterinary and Biomedical Sciences Building, University Park, PA 16802-3500, USA |
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| Abstract: | Proven mastitis control procedures are available, but few studies have documented their rates of use on commercial dairy farms. This paper presents the results of a mail questionnaire on the use of mastitis control procedures and sources of information on mastitis control, which were administered in December 1981 and again in February 1984 to 213 Minnesota dairy farmers. Sources of information about mastitis control were also determined for the surveyed farms. Response rates to the questionnaire were 56.8% in 1981 and 51.2% in 1984. Herd average milk and butterfat production were higher and somatic cell counts lower on responder's farms than non-responders'. Teat dipping was practiced by approximately 75% of farmers responding to the questionnaire in both years. However, only about one third of respondents used teat dips containing effective disinfectants. Approximately 93% of respondents used dry period therapy (DPT) but less than one half of them treated all quarters of all cows at drying off and approximately one third of them complied with the recommended infusion practices. A combination of effective DPT and teat disinfection practices was used by approximately 15% of respondents in both years of the survey. Segregation of mastitic cows occurred on approximately 40% of respondent farms and milking machine function was checked at least annually on 50%. Participation in routine veterinary reproductive health programs was 51.2% in 1981 and 61.5% in 1984. In contrast, regular veterinary input for mastitis control was received by <5% of respondents in both years of the survey. Veterinarians were, however, identified by respondents as the most useful source of information on mastitis control. |
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