Bovis ISSN 2398-2993

Mastitis: approach to the cow with acute mastitis

Contributor(s): Virginia Sherwin , Richard Cooper

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Clinical presentation

  • Mammary gland: hard, swollen and hot udder with a watery, yellow or grey secretion from the infected quarter.
  • Systemic signs of acute mastitis:
    • Decreased appetite and rumination, leading to potential ileus.
    • Dull depressed attitude; may enter the parlour at the end of milking.
    • Potential for an altered gait due to a painful mammary gland.
  • Toxic Mastitis:
    • Sudden onset of disease.
    • Increased respiratory rate and heart rate.
    • Decreased rumen motility, leading to alterations in fecal consistency and presence.
    • Signs of dehydration, with increased skin tent and increased space between the eye and medial canthus of the eye.
    • Mucus membranes are often dark red.
    • Temperature is variable, with pyrexia occurring in the initial stages but then can become normal or low with cold extremities.
    • Recumbent or severely weak cow if later on during disease.
    • If untreated the cow will become comatosed and die.

Possible Etiologies

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Differentials

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Potential diagnostics

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Pathogenesis of coliform mastitis

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Epidemiology

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Treatment

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Prognosis

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Further Reading

Publications

Refereed Papers

  • Recent references from PubMed and VetMed Resource.
  • Wareham K & Dean R (2016) Enrofloxacin in dairy cattle with Escherichia coli mastitis. Veterinary Record, 178 (14), pp 345-345 PubMed.
  • Leslie K E & Petersson-Wolfe C S (2012) Assessment and management of pain in dairy cows with clinical mastitis. The Veterinary clinics of North America. Food animal practice 28 (2), pp.289–305 PubMed.
  • Roberson J R (2012) Treatment of clinical mastitis. The Veterinary clinics of North America. Food animal practice 28 (2), pp 271–88 PubMed.
  • Green M (2008) Toxic mastitis in cattle. In practice 20, pp128-133.
  • Bleul U et al (2006) Clinical findings in 56 cows with toxic mastitis. Veterinary Record 159 (20), pp 677-679 PubMed.
  • Smith G W (2005) Supportive therapy of the toxic cow. The Veterinary clinics of North America. Food animal practice 21 (3), pp 595–614 PubMed.
  • Bradley A J (2002) Bovine Mastitis: An Evolving Disease. The Veterinary Journal 164 (2), pp 116–128 PubMed.
  • Menzies et al (2000) Clinical and laboratory findings in cases of toxic mastitis in cows in Northern Ireland. Vet Record 147, pp 123-128 PubMed.​


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