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Investigation of risk factors for clinical mastitis in British dairy herds with bulk milk somatic cell counts less than 150,000 cells/ml






Veterinary Record 158(19): 649-653

Investigation of risk factors for clinical mastitis in British dairy herds with bulk milk somatic cell counts less than 150,000 cells/ml

A sample of dairy farms in Great Britain with a monthly bulk milk somatic cell count of less than 150,000 cells/ml was enrolled into a 12-month prospective study. At the end of the study, a questionnaire on milking practice and other farm management practices was sent to the 482 farmers who had collected data on the occurrence of mastitis throughout the 12 months. The response rate was 93 per cent. The reported mean incidence of clinical mastitis was 36.9 cases per 100 cow-years. Factors associated with an increase in the incidence of clinical mastitis were cleaning out the straw yard less frequently than every six weeks, more than 5 per cent of cows leaking milk outside the parlour, checking the foremilk, wearing gloves during milking, an average annual milk yield of more than 7000 litres per cow, dipping or spraying teats before milking and keeping milk with a high somatic cell count out of the bulk tank. Factors associated with a decrease in the incidence of clinical mastitis were using a cloth to dry the teats after washing them as part of premilking preparation, using calving boxes for less than 40 per cent of calvings, and using both cubicles and straw yards to house dry cows, as opposed to other housing.


Accession: 049403601

PMID: 16699133

DOI: 10.1136/vr.158.19.649



Related references

O.R.illy, K.M.; Green, M.J.; Peeler, E.J.; Fitzpatrick, J.L.; Green, L.E., 2006: Investigation of risk factors for clinical mastitis in British dairy herds with bulk milk somatic cell counts less than 150 000 cells/ml. A sample of dairy farms in Great Britain with a monthly bulk milk somatic cell count of less than 150 000 cells/ml was enrolled into a 12-month prospective study. At the end of the study, a questionnaire on milking practice and other farm manageme...

O'-Reilly, K.; Green, M.; Peeler, E.; Fitzpatrick, J.; Green, L., 2006: Investigation of risk factores for clinical mastitis in British dairy herds with bulk milk somatic cell counts less than 150,000 cells. Veterinary record: journal of the British Veterinary Association13 158(19): 649-653

Peeler, E.J.; Green, M.J.; Fitzpatrick, J.L.; Green, L.E., 2002: Study of clinical mastitis in British dairy herds with bulk milk somatic cell counts less than 150,000 cells/ml. A 12-month prospective study of clinical mastitis was conducted in 482 British dairy herds with a bulk milk somatic cell count (BMSCC) of less than 150 000 cells/ml in 1998. The mean proportion of cows in the herd with clinical mastitis was 23-1%...

Peeler, E.J.; Green, M.J.; Fitzpatrick, J.L., 2002: Study of clinical mastitis in British dairy herds with bulk milk somatic counts less than 150,000 cells/ml. The Veterinary Record 151(6): 0-6

Peeler, E.; Green, M.; Fitzpatrick, J.; Green, L., 2002: Study of clinical mastitis in British dairy herds with bulk milk somatic cell counts less than 150,000 cell. Veterinary record: journal of the British Veterinary Association, 151(6): 170-176

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