Wednesday, July 16, 2014

FECs Increase Substantially

As compared to June 19, fecal egg counts (from July 3) increased substantially. For the individual samples collected on July 3, fecal egg counts ranged from 150 to 9600 epg and averaged 1680 ± 1607 epg. The median fecal egg count was 1338 epg. Tapeworm eggs were found in one fecal sample. Coccidia oocysts were found in one sample.  Fecal samples could not be obtained from three goats.

To qualify as Gold, a buck cannot have an egg count above 1000 epg.  Thirty-one bucks (42%) had egg counts below 1000 epg, including all the bucks in the Barnes (KY) consignment, both of Patricia Larr's (IN) bucks, and the single consignments of Christine English (MD) and Harry Taylor (MD).

To qualify as Silver, a buck cannot have an egg count above 1500 epg. Thirty-nine bucks (53%)) had egg counts below 1500 epg, including all of the bucks in the Stemme (TX) consignment.

To qualify as Bronze, a buck cannot have an egg count above 2000 epg. Fifty-five bucks (74%) had egg counts below 2000 epg, including all the bucks in the Adams (IL), Ballinger (KY), and Heise (PA) consignments.

2000 epg is considered to be of clinical significance for the barber pole worm (Haemonchus contortus). Lower egg counts can be problematic for the other strongyle-type species. Bucks with egg counts above 2000 epg are usually disqualified from the sale.

When previous test data has been analyzed, there has been a weak-to-moderate correlation between fecal egg counts and FAMACHA© scores (deworming need). 

On July 17, bucks with FAMACHA© scores of 4 or 5 will be dewormed with levamisole (Prohibit® @ 3/ml 50 lbs.). Bucks with FAMACHA© scores of 3 will be dewormed if they have one or more additional risk factors, such as weight loss, scours, loss of body condition, BCS < 2, and/or high FEC. On July 17, all bucks will be given a bolus containing 0.5 grams of copper oxide wire particles (COWP). COWPs have been scientifically proven to reduce barber pole worm infections in kids and lambs. Copper is also important to immune function.

Tomorrow (July 17) starts the "growth" phase of the test. The goats will be rotated onto the warm season annuals, starting with Sunn Hemp and Millet. Within the next week, they will be started on a soy hull supplement, with a goal of feeding less than 2% of body weight.

Download July 3 FEC (d-28) Report