Staphylococcus aureus, Escherichia coli, and Klebsiella spp. prevalence in bulk tank milk of Colombian herds and associated milking practices
Background and Aim: Bovine mastitis is one of the most costly and prevalent diseases in dairy herds, which can be prevented and controlled through proper milking practices, diagnosis, and elimination of chronic animals, among others. Contagious pathogens such as Staphylococcus aureus and environment...
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| Format: | Article |
| Language: | English |
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Veterinary World
2023-04-01
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| Series: | Veterinary World |
| Subjects: | |
| Online Access: | https://www.veterinaryworld.org/Vol.16/April-2023/26.pdf |
| _version_ | 1797838871080206336 |
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| author | Ángela Sofía Ágredo-Campos Jorge A. Fernández-Silva Nicolás F. Ramírez-Vásquez |
| author_facet | Ángela Sofía Ágredo-Campos Jorge A. Fernández-Silva Nicolás F. Ramírez-Vásquez |
| author_sort | Ángela Sofía Ágredo-Campos |
| collection | DOAJ |
| description | Background and Aim: Bovine mastitis is one of the most costly and prevalent diseases in dairy herds, which can be prevented and controlled through proper milking practices, diagnosis, and elimination of chronic animals, among others. Contagious pathogens such as Staphylococcus aureus and environmental pathogens such as Escherichia coli and Klebsiella spp. can affect cows and milk for human consumption, generating a public health risk. This study aimed to estimate the prevalence of herds with somatic cell count (SCC) ≥200,000 cells/mL, S. aureus, E. coli, and Klebsiella spp., in bulk tank milk (BTM) and its associated risk factors in Colombian dairy cow herds.
Materials and Methods: A cross-sectional probabilistic study was carried out in 150 dairy herds located in the north of the Antioquia province. A single visit per herd was conducted, during which three BTM samples were aseptically collected. General data and milking practices were collected through an epidemiological survey applied in each herd.
Results: The prevalence of S. aureus, E. coli, and Klebsiella spp. were 14% (21/150), 2% (3/150), and 8% (12/150), respectively. Moreover, 95% of the herds presented an SCC of ≥200,000 cells/mL. Practices such as in-paddock milking, change of milker during the last month, use of disposable gloves, and hand disinfection were associated with increased prevalence of S. aureus, whereas proper dipping was a protective factor. Proper washing and disinfection of the milking machine, use of chlorinated disinfectants for hand hygiene, and use of disposable gloves decreased the prevalence of E. coli and Klebsiella spp. Bulk tank SCC increased in herds with 30–60 milking cows, herds with >60 milking cows, and herds with a change of milker during the last month. Hand disinfection and dipping decreased the SCC.
Conclusion: Staphylococcus aureus, E. coli, and Klebsiella spp. were prevalent in BTM from dairy cow herds. The risk of S. aureus isolation was higher in herds with an in-paddock milking system. The risk of E. coli and Klebsiella spp. isolation were higher in herds with >60 milking cows, with a change of milker during the last month. Processes such as avoiding changing the milker and greater control in medium and large herds could improve the SCC in BTM. |
| first_indexed | 2024-04-09T15:48:56Z |
| format | Article |
| id | doaj.art-d4dbcfee8a854f2ea36854cdbaa5f0e8 |
| institution | Directory Open Access Journal |
| issn | 0972-8988 2231-0916 |
| language | English |
| last_indexed | 2024-04-09T15:48:56Z |
| publishDate | 2023-04-01 |
| publisher | Veterinary World |
| record_format | Article |
| series | Veterinary World |
| spelling | doaj.art-d4dbcfee8a854f2ea36854cdbaa5f0e82023-04-26T15:54:16ZengVeterinary WorldVeterinary World0972-89882231-09162023-04-0116486988110.14202/vetworld.2023.869-881Staphylococcus aureus, Escherichia coli, and Klebsiella spp. prevalence in bulk tank milk of Colombian herds and associated milking practicesÁngela Sofía Ágredo-Campos0https://orcid.org/0000-0002-2680-1186Jorge A. Fernández-Silva1https://orcid.org/0000-0001-7248-5420Nicolás F. Ramírez-Vásquez2https://orcid.org/0000-0002-0444-8094Centauro, Escuela de Medicina Veterinaria, Facultad de Ciencias Agrarias, Universidad de Antioquia UdeA, Calle 70 No. 52-2, Medellín, Colombia.Centauro, Escuela de Medicina Veterinaria, Facultad de Ciencias Agrarias, Universidad de Antioquia UdeA, Calle 70 No. 52-2, Medellín, Colombia.Centauro, Escuela de Medicina Veterinaria, Facultad de Ciencias Agrarias, Universidad de Antioquia UdeA, Calle 70 No. 52-2, Medellín, Colombia.Background and Aim: Bovine mastitis is one of the most costly and prevalent diseases in dairy herds, which can be prevented and controlled through proper milking practices, diagnosis, and elimination of chronic animals, among others. Contagious pathogens such as Staphylococcus aureus and environmental pathogens such as Escherichia coli and Klebsiella spp. can affect cows and milk for human consumption, generating a public health risk. This study aimed to estimate the prevalence of herds with somatic cell count (SCC) ≥200,000 cells/mL, S. aureus, E. coli, and Klebsiella spp., in bulk tank milk (BTM) and its associated risk factors in Colombian dairy cow herds. Materials and Methods: A cross-sectional probabilistic study was carried out in 150 dairy herds located in the north of the Antioquia province. A single visit per herd was conducted, during which three BTM samples were aseptically collected. General data and milking practices were collected through an epidemiological survey applied in each herd. Results: The prevalence of S. aureus, E. coli, and Klebsiella spp. were 14% (21/150), 2% (3/150), and 8% (12/150), respectively. Moreover, 95% of the herds presented an SCC of ≥200,000 cells/mL. Practices such as in-paddock milking, change of milker during the last month, use of disposable gloves, and hand disinfection were associated with increased prevalence of S. aureus, whereas proper dipping was a protective factor. Proper washing and disinfection of the milking machine, use of chlorinated disinfectants for hand hygiene, and use of disposable gloves decreased the prevalence of E. coli and Klebsiella spp. Bulk tank SCC increased in herds with 30–60 milking cows, herds with >60 milking cows, and herds with a change of milker during the last month. Hand disinfection and dipping decreased the SCC. Conclusion: Staphylococcus aureus, E. coli, and Klebsiella spp. were prevalent in BTM from dairy cow herds. The risk of S. aureus isolation was higher in herds with an in-paddock milking system. The risk of E. coli and Klebsiella spp. isolation were higher in herds with >60 milking cows, with a change of milker during the last month. Processes such as avoiding changing the milker and greater control in medium and large herds could improve the SCC in BTM.https://www.veterinaryworld.org/Vol.16/April-2023/26.pdfbovine mastitisbulk tank milkmilkingraw milk pathogenssomatic cell count |
| spellingShingle | Ángela Sofía Ágredo-Campos Jorge A. Fernández-Silva Nicolás F. Ramírez-Vásquez Staphylococcus aureus, Escherichia coli, and Klebsiella spp. prevalence in bulk tank milk of Colombian herds and associated milking practices Veterinary World bovine mastitis bulk tank milk milking raw milk pathogens somatic cell count |
| title | Staphylococcus aureus, Escherichia coli, and Klebsiella spp. prevalence in bulk tank milk of Colombian herds and associated milking practices |
| title_full | Staphylococcus aureus, Escherichia coli, and Klebsiella spp. prevalence in bulk tank milk of Colombian herds and associated milking practices |
| title_fullStr | Staphylococcus aureus, Escherichia coli, and Klebsiella spp. prevalence in bulk tank milk of Colombian herds and associated milking practices |
| title_full_unstemmed | Staphylococcus aureus, Escherichia coli, and Klebsiella spp. prevalence in bulk tank milk of Colombian herds and associated milking practices |
| title_short | Staphylococcus aureus, Escherichia coli, and Klebsiella spp. prevalence in bulk tank milk of Colombian herds and associated milking practices |
| title_sort | staphylococcus aureus escherichia coli and klebsiella spp prevalence in bulk tank milk of colombian herds and associated milking practices |
| topic | bovine mastitis bulk tank milk milking raw milk pathogens somatic cell count |
| url | https://www.veterinaryworld.org/Vol.16/April-2023/26.pdf |
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