Using Fecal Egg Counts on Your Farm

Virginia Cooperative Extension has published a new fact sheet on using fecal egg counts. The author is Dr. Dahlia O'Brien. Quantitative egg counts are important in any parasite control program and can aid producers in monitoring the rate of pasture contamination. In addition, fecal egg counts (FEC) can be used to determine drug resistance and in selecting or culling particular animals. It is important to note that most of the time, FEC should not be used as the only indicator of when to deworm individual animals. It should be used in conjunction with FAMACHA© (anemia) eye scores and other components of the Five Point Check©, possibly along with weight gain or loss, to determine treatment. D

Update: Mini FLOTAC

The lab of Dr. Ray Kaplan at the University of Georgia is the North American distributor for Mini FLOTAC fecal egg counting devises. The Mini FLOTAC is a relatively new method developed at the University of Naples in Italy. The mini-FLOTAC system uses a counting chamber with a novel design, along with a self-contained processing device called a Fill-FLOTAC. This makes performing a fecal egg count (FEC) easier, less messy, and more consistent. Image source: University of Naples This method also has a much higher diagnostic sensitivity for detecting eggs in fecal samples (5 EPG) than McMasters, and has better accuracy and better precision than both McMasters and the Modified Wisconsin fecal

Correlation Among Traits

Canadian researchers conducted a study to determine the relationship between (log transformed) fecal egg counts (FEC) and packed cell volume (PCV) and subjective clinical parameters, including FAMACHA© score, body condition score (BCS), dag score (DS), and fecal consistency score (FCS), in a cold, continental climate in which Haemonchus makes up only a moderate portion of the parasite infection. Data was collected in spring (April) and summer (August) from 21 farms in Ontario and 8 farms in Quebec. Results from simple correlations indicated that PCV was negatively correlated with FEC (r=0.255, +/- 6.5%) and FAMACHA© (r=0.312, +/- 9.7%) and positively correlated with BCS (r=0.317, +/- 10%).

Web Site Reaches Global Audience

The American Consortium for Small Ruminant Parasite Control (ACSRPC) was organized in 2003 in response to the widespread emergence of anthelmintic-resistant worms. A web site ( was established in 2004 to provide up-to-date information to stakeholders. The web site ( was upgraded in 2012 and is now hosted by the University of Maryland. According to Google Analytics, the web site received 134,109 page views (110,254 unique) during the past year (May 1, 2018 – April 30, 2019); +7.76% compared to the previous 12 months. There were 44,993 users; +11.3%. While the majority of users were from the US (82.22%), the web site was accessed by 159 countries during the past year. A

History of FAMACHA© System

Dr. Faffa Malan, one of the developers of the FAMACHA© system is interviewed in this 17 minute 30 second video from South Africa. The FAMACHA© card is an anemia chart. It is part of a holistic parasite management system. The first card was produced in 1990.

Recent Posts

© 2020.  American Consortium for Small Ruminant Parasite Control (ACSRPC).  Created with ..