FAMACHA©: A potential tool for targeted selective treatment of chronic fasciolosis in sheep

Sophie Olah, Jan A. van Wyk, Richard Wall, Eric R. Morgan*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

7 Citations (Scopus)

Abstract

The liver fluke Fasciola hepatica causes considerable damage to the health, welfare and productivity of ruminants in temperate areas, and its control is challenged by anthelmintic resistance. Targeted selective treatment (TST) is an increasingly established strategy for preserving anthelmintic efficacy in grazing livestock, yet no practical indicators are available to target individuals for treatment against fluke infection. This paper evaluates the FAMACHA© system, a colour chart for the non-invasive detection of anaemia in small ruminants, for this purpose. FAMACHA© scores were collected from 288 sheep prior to slaughter during the winter period, when fluke infections were largely mature, and condemned livers were recovered and adult flukes extracted. Average FAMACHA© score was significantly higher (=paler conjunctivae) in animals whose livers were condemned (3.6, n=62) than in those whose livers were not condemned (2.1). The number of adult flukes recovered ranged from 2 to 485, and was positively correlated with FAMACHA© score (r2=0.54, p

Original languageEnglish
Pages (from-to)188-192
Number of pages5
JournalVeterinary Parasitology
Volume212
Issue number3-4
DOIs
Publication statusPublished - 15 Sep 2015

Keywords

  • Anthelmintic resistance
  • Control
  • Epidemiology
  • FAMACHA
  • Fasciola hepatica
  • Fasciolosis
  • Fluke
  • Non-target effects
  • Targeted selective treatment
  • TST

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