National survey of clinical and subclinical mastitis in Jamaican dairy herds, 1985-1986
| Autor: | J. Zingeser, Y. Daye, V. Lopez, G. Grant, L. Bryan, Martin Hugh-Jones, M. Kearney |
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| Rok vydání: | 1991 |
| Předmět: |
Veterinary medicine
Jamaica Dairy herds business.industry food and beverages Staphylococcal Infections medicine.disease Mastitis Milk sample Milking Klebsiella Infections Dairying Leukocyte Count Animal science Milk Food Animals Streptococcal Infections medicine Animals Animal Science and Zoology Cattle Female Subclinical mastitis business Mastitis Bovine |
| Zdroj: | Tropical animal health and production. 23(1) |
| ISSN: | 0049-4747 |
| Popis: | Between April 1985 and August 1986, 89 Jamaican dairy herds with 10 or more cows were visited, 1, 645 lactating cows were examined using the CMT test and 254 composite milk samples collected for bacteriological examination. Widespread management faults were noted, especially of milking machine usage and maintenance and the abuse of antibiotics. Fifty-six per cent of all quarters were found to have CMT scores of one or higher, 0·8% showed clinical mastitis and 3·2% were blind. The most common bacterial pathogenStaphylococcus aureus, was recovered from 31% of sampled cows. The resultant milk loss from clinical and subclinical mastitis was estimated to be 20% of the potential national production. |
| Databáze: | OpenAIRE |
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