Table 2.

The fecal egg count reduction (FECR) data and the high probability density interval (HPD) for ivermectin (IVM) and moxidectin (MOX) on horse farms. Number of horses and mean strongyle fecal egg counts (FEC) expressed in egg per gram (epg) are shown for day 0 and day 14, along with the FECR percentage.

Farm Code	Number of Horses	Day 0 FEC (epg) Mean	Day 14 FEC (epg) Mean	FECR%	HPD Interval
IVM (0.2 mg/kg)
F19	3	828.70	36.40	95.40	93.6, 97.1
F20	3	933.40	0.20	100.00	99.7, 100
F21	21	833.80	100.00	99.90	99.2, 100
F22	3	889.80	0.50	99.90	99.3, 100
F23	25	418.50	0.00	100.00	99.9, 100
F24	6	10.30	0.92	96.10	11.7, 100
F25	20	483.22	89.22	80.70	77.3, 84.1
F26	20	505.80	7.86	98.40	96.9, 99.3
MOX (0.4 mg/kg)
F27	8	624.40	0.30	100.00	99.6, 100
F28	23	581.42	0.04	100.00	99.9, 100
F29	14	165.61	0.08	100.00	99.3, 100
F30	12	1092.60	0.08	100.00	99.9, 100
F31	12	332.58	0.10	100.00	99.6, 100
F32	21	189.48	0.05	100.00	99.6, 100
F33	29	271.90	0.04	100.00	99.8, 100
F34	30	519.60	0.00	100.00	99.9, 100
F35	20	110.29	0.29	99.80	98.6, 100
F36	19	304.95	0.06	100.00	99.7, 100
F37	6	157.50	0.00	99.50	24.0, 100
F38	38	224.37	0.04	100.00	99.7, 100
F39	43	520.55	0.14	100.00	99.9, 100
F40	12	717.73	0.08	100.00	99.8, 100
F41	20	502.56	0.05	99.90	99.8, 100
F42	20	204.00	0.05	100.00	99.7, 100
F43	21	84.82	11.31	86.90	73.8, 94.8
F44	8	24.72	2.33	93.50	31.6, 99.4