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Occurrence and aetiology of subclinical mastitis in water buffalo in Bangladesh.
Singha, Shuvo; Ericsson, Carl David; Chowdhury, Salma; Nath, Sanjib Chandra; Paul, Ovirup Bhushan; Hoque, Md Ahasanul; Boqvist, Sofia; Persson, Ylva; Rahman, Md Mizanur.
Afiliación
  • Singha S; Department of Veterinary Medicine, University of Milan, Lodi, Italy.
  • Ericsson CD; Department of Physiology, Sylhet Agricultural University, Sylhet, Bangladesh.
  • Chowdhury S; Department of Medicine and Surgery, Chattogram Veterinary and Animal Sciences University, Chattogram, Bangladesh.
  • Nath SC; Participating Partner, Udder Health Bangladesh, Chattogram, Bangladesh.
  • Paul OB; Department of Biomedical Sciences and Veterinary Public Health, Swedish University of Agricultural Sciences, Uppsala, Sweden.
  • Hoque MA; Department of Medicine and Surgery, Chattogram Veterinary and Animal Sciences University, Chattogram, Bangladesh.
  • Boqvist S; Participating Partner, Udder Health Bangladesh, Chattogram, Bangladesh.
  • Persson Y; Department of Medicine and Surgery, Chattogram Veterinary and Animal Sciences University, Chattogram, Bangladesh.
  • Rahman MM; Participating Partner, Udder Health Bangladesh, Chattogram, Bangladesh.
J Dairy Res ; 88(3): 314-320, 2021 Aug.
Article en En | MEDLINE | ID: mdl-34412714
Subclinical mastitis (SCM) in water buffalo is a production disease associated with decreased milk yield and impaired milk quality and safety. Water buffalo is an important livestock species in Bangladesh, but information about the occurrence and aetiology of SCM in this species is scarce. A cross-sectional study was conducted as part of the Udder Health Bangladesh Programme to (i) determine the occurrence of SCM and bulk milk somatic cell count (SCC) in water buffalo in Bangladesh, (ii) identify pathogens causing SCM and (iii) evaluate penicillin resistance in isolated staphylococci strains. Sixteen buffalo farms in the Bagerhat and Noakhali regions of Bangladesh were selected for study and a bulk milk sample was collected from each farm. In addition, 299 udder quarter milk samples were collected from 76 animals. The bulk milk samples were assessed by direct SCC and the quarter milk samples by California mastitis test (CMT). The occurrence of SCM calculated at quarter and animal level was 42.5 and 81.6%, respectively. Milk samples from 108 CMT-positive quarters in 48 animals and 38 randomly selected CMT-negative quarters in 24 animals were investigated using bacteriological culture. Estimated mean bulk milk SCC was 195 000 cells/ml milk (range 47 000- 587 000 cells/ml milk). On culture, estimated quarter-level intramammary infection (IMI) was 40.4%. The identity of isolated bacteria was confirmed by MALDI-TOF mass spectrometry. Non-aureus staphylococci (NAS) were the most common pathogens (24.7%) and, among 36 NAS tested, 36.1% were resistant to penicillin. Thus there was high occurrence of SCM on the study farms, with relatively high penicillin resistance in NAS. Further studies are needed to identify underlying risk factors and develop an udder health control strategy for water buffalo in Bangladesh.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Búfalos / Mastitis Tipo de estudio: Etiology_studies / Observational_studies / Prevalence_studies / Prognostic_studies / Risk_factors_studies Límite: Animals País/Región como asunto: Asia Idioma: En Revista: J Dairy Res Año: 2021 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Búfalos / Mastitis Tipo de estudio: Etiology_studies / Observational_studies / Prevalence_studies / Prognostic_studies / Risk_factors_studies Límite: Animals País/Región como asunto: Asia Idioma: En Revista: J Dairy Res Año: 2021 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Reino Unido