Wednesday, September 7, 2016

Fecal Egg Counts Soar

For the fecal samples collected on September 1, fecal egg counts ranged from 57 to 18300 epg and averaged 4562 ± 3817 epg. The median egg count was a very high 3816 epg.  The efficacy of goats dewormed on August 18 was variable.

Twelve goats (13%) had fecal egg counts below 500 epg. Eighteen (20%) had egg counts below 1000 epg. Twenty-seven (29%) had egg counts below 2000. Thirty-four goats (37%) had egg counts between 2001 and 5000 epg. Of concern are the 31 goats (34%) that had egg counts above 5000 epg. Egg counts above 5000 epg are far more likely to be CLINICAL.

Eleven goats have yet to have a fecal egg count above 2000 epg. Four goats have yet to have egg counts above 1000 epg. Eleven goats have average egg counts below 1000 epg. So far, six fecal samples have been collected. The first sample (collected on June 23-24) does not factor into the test results because it is the result of prior management and challenge. Fecal samples will be collected two more times. 

High fecal egg counts, in the absence of high FAMACHA© scores or other clinical signs of parasitism are indicative of resilience. Resilience and resistant (low fecal egg counts) are different traits. Both are heritable and can be passed onto the next generation of kids. Excellence in both traits is desirable and the traits have some correlation, but goats that grow and thrive despite high levels of infection (high egg counts) have merit.

Download September 1 FEC Report