ISSN 2398-2993      

Preputial washing

obovis

Synonym(s): sheath, lavage


Introduction

Uses

  • For diagnostic screening bulls for Campylobacter fetus spp Camplyobacter spp & Trichomonas fetus.
  • For prophylactic treatment of purchased bulls prior to use for breeding in the herd.

Advantages

  • Avoidance of introduction of campylobacteriosis into the herd. The bull can often be an asymptomatic carrier of infection.
  • Campylobacteriosis results in a large increase in returns to service with early to mid gestation pregnancy losses as a result of venereal transmission.

Disadvantages

  • Concerns relating to the responsible  use of antimicrobials in agriculture bring into question the practice of prophylactically washing the sheath.
  • The sensitivity and specificity of diagnostic screening is not well understood.
  • IFAT is estimated at 93% sensitive ie more than 1 in 20 infected bulls will be missed and only 89% specific.
  • Specific transport enrichment medium is required.

Requirements

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Preparation

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Procedure

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Further Reading

Publications

Refereed Papers

  • Recent references from PubMed and VetMedResource.
  • Statham J M E (2010) Differential diagnosis of scrotal enlargement in bulls. In Practice 32, 2-9.
  • Eppink E (2006) A survey of bull breeding soundness evaluations in the south east of Scotland. Cattle Practice 13, 205-209.
  • Penny C (2005) Practical semen collection and examination techniques for breeding soundness evaluation of bulls. Cattle Practice 13, 199-204 VetMedResource.
  • McGowan M (2004) Approach to conducting bull breeding soundness evaluations. In Practice 26, 485-491.

Other sources of information

  • Chenoweth P (2015) Bull Health and Breeding Soundness. In: Bovine Medicine. 3rd edn. Wiley-Blackwell Publishing, Oxford, pp 246-261.
  • Logue D N & Crawshaw W M (2004) Bull infertility. In: Bovine Medicine – Diseases and Husbandry of Cattle. 2nd edn. Wiley-Blackwell Publishing, Oxford. pp 594-626.
  • Entwistle K & Fordyce G (2003) Evaluating and reporting bull fertility. Australian Association of Cattle Veterinarians. Brisbane, Australia.

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