A note on effectiveness of dry cow therapy in New Zealand dairy herds
| Autor: | R.M. Barker, J. W. Pankey, G. Duirs, A. Twomey |
|---|---|
| Rok vydání: | 1982 |
| Předmět: |
Streptococcus uberis
Veterinary medicine General Veterinary biology business.industry Dairy herds General Medicine medicine.disease_cause biology.organism_classification Product containing neomycin Microbiology Penicillin chemistry.chemical_compound Streptococcus agalactiae chemistry Staphylococcus aureus medicine Herd business Benzathine medicine.drug |
| Zdroj: | New Zealand Veterinary Journal. 30:50-52 |
| ISSN: | 1176-0710 0048-0169 |
| DOI: | 10.1080/00480169.1982.34876 |
| Popis: | Two dry-cow therapy products were evaluated in seven factory-supply dairy herds in the Waikato area. A product containing neomycin sulphate and the benzathine salt of penicillin (Neopen D.C. White; Smith-Biolab) was used in five herds, and one containing benzathine cloxacillin (Orbenin, Beecham) was used in two herds. Non-treated control cows were included in each herd. Both products were effective in eliminating intramammary infections with Staphylococcus aureus, Streptococcus uberis, and Streptococcus agalactiae. Efficacy of dry-cow therapy against S. aureus was 83.8% and 85.2% respectively. Spontaneous cure rate among controls was 30.8% for S. aureus during the dry period. Spontaneous cure rate for Str. uberis was 50%, while dry-cow therapy eliminated 100% and 77.8%, respectively, for the two products. Dry-cow therapy with either product eliminated more than 90% of Str. agalactiae infections while spontaneous cure rate was only 28.6%. These results further support the effectiveness of dry-cow therapy in reducing the level of subclinical mastitis in dairy herds by shortening the duration of intramammary infections. |
| Databáze: | OpenAIRE |
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