Bacteriological survey of bulk tank milk from dairy farms in Montero, Santa Cruz, Bolivia
| Autor: | Masateru Koiwa, Yu Michimuko-Nagahara, Yu Tamura |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Bolivia
Veterinary medicine dairy farm 040301 veterinary sciences Biology mastitis medicine.disease_cause SF1-1100 0403 veterinary science Agar plate bacterial survey SF600-1100 medicine Bulk tank Bacillus (shape) General Veterinary 0402 animal and dairy science 04 agricultural and veterinary sciences bulk tank milk medicine.disease biology.organism_classification 040201 dairy & animal science Animal culture Mastitis Staphylococcus aureus Herd prevalence Bacteria Research Article |
| Zdroj: | Veterinary World, Vol 11, Iss 10, Pp 1506-1509 (2018) Veterinary World |
| ISSN: | 2231-0916 0972-8988 |
| DOI: | 10.14202/vetworld.2018.1506-1509 |
| Popis: | Background and Aim: Recently, bacterial surveys for mastitis-causing pathogens in bulk tank milk (BTM) have been conducted in several countries worldwide. However, no such surveys have been reported from Bolivia. Therefore, the present study aimed to estimate the prevalence of mastitis pathogens in BTM from dairy farms in Montero, Santa Cruz, Bolivia. Materials and Methods: Between July 2016 and August 2017, a total of 43 BTM samples were collected from 3264 cows to determine bulk tank somatic cell counts (BTSCC) and identify mastitis-causing bacteria. BTSCC was classified as follows: 1000×103 cells/mL. Results: Mastitis-causing pathogens identified by agar medium cultures included Bacillus spp., coagulase-negative staphylococci (CNS), coliforms, Staphylococcus aureus (SA), streptococci, and other species. The proportions of BTSCC of 1000×103 cells/ml were 0%, 37%, 51%, and 12%, respectively. The proportions of coliforms, streptococci, CNS, Bacillus spp., SA, and others detected in BTM were 33%, 30%, 16%, 7%, 2%, and 16%, respectively. Conclusion: Although the herd prevalence of contagious mastitis-causing pathogens, such as SA, in BTM was low, increased BTSCC were identified in Montero, Santa Cruz, Bolivia. Veterinary World, 11(10), pp.1506-1509; 2018 |
| Databáze: | OpenAIRE |
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