ISSN 2398-2993      

Udder ligament: rupture

obovis

Synonym(s): Dropped udder


Introduction

Pathogenesis

Pathophysiology

  • Rupture of the medial ligaments.
    • Most common.
    • Causes lateral displacement of the right and left halves of the distal udder.
      • Teats are splayed outwards.
      • Loss of dividing curvature between the 2 halves of the udder.
  • Rupture of the lateral ligaments.
    • Dramatic lowering of the udder below the hocks.
  • Rupture of the anterior sections of the udder ligaments.
    • Presents as gross enlargement in front of the udder.
    • Causes the front teats to splay outwards.
    • Occassionally causes concurrent internal rupture of the mammary vein, leading to severe anaemia.
  • Rupture of the rear udder attachement.
    • The rear udder appears pendulous without a clearly defined attachement and obvious stretching of the skin at the rear of the animal.
  • Leads to increased risk of mastitis due to being lower to the ground and therefore more exposed to environmental contamination of the teat ends.
  • Also more prone to udder and teat end damage due to being stood on.
  • Causes increasing difficulty in application of clusters for milking.
    • Leads to liner slip and increased risk of retropulsive milk flow, further increasing mastitis risk.
  • May worsen Udder edema Udder edema in the ventral aspect of the udder due to reduced venous and lymphatic return.

Diagnosis

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Treatment

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Prevention

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Outcomes

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Further Reading

Publications

Refereed Papers

  • Recent references from PubMed and VetMedResource.
  • Seykora A J, McDaniel B T (1985) Udder and teat morphology related to mastitis resistance: a review. J Dairy Sci 68 (8), 2087-2093 PubMed.

Other sources of information

  • Jackson P G G & Cockcroft P D (2002) Clinical Examination of the Udder. In: Clinical Examination of Farm Animals. 1st edn. Blackwell Science. pp 154-166.
  • Blowey R W & Weaver A D (2011) Udder and Teat Disorders. In: Color Atlas of Diseases and Disorders of Cattle. 3rd edn. pp 203-219.
  • George L W, Divers T J, Ducharme N & Welcome F L (2008) Diseases of the Teats and Udder. In: Rebhun's Diseases of Dairy Cattle. 2nd edn. pp 327-394.

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