Tuesday, September 22, 2015

90 Percent Haemonchus

The results of the second fecal coproculture (larvae ID) were 90 percent Haemonchus contortus (barber pole worm), 8 percent Teladorsagia and Trichostrongylus ("bankrupt" or scour worms), and 2 percent other. The pooled fecal egg count was 2,400 epg.

This was determined from a pooled fecal sample collected from random goats on August 21.  The first pooled sample collected when the goats arrived on June 26 was 70 percent Haemonchus, 15 percent Teladorsagia and Trichostrongylus and 15 percent other.

The high proportion of barber pole worms means that the FAMACHA© system can be quite effective for determining the need for deworming. The FAMACHA© system is only useful for assessing the effect of blood-feeding parasites, such as Haemonchus. The Five Point Check© and Happy Factor™ model can be used to assess the effect of other parasites, such as Teladorsagia and Trichostrongylus.

The larvae ID is done by Dr. Dahlia O'Brien's lab at Virginia State University. One more pooled sample will be collected for larvae ID.