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Comparison of copper sulfate and copper oxide wire particles as an anthelmintic for goats

S. Hart and Z. Wang

Journal of Animal Science 87(E-Supplement 2):309-310. 2009

Gastrointestinal nematodes are the leading cause of morbidity and mortality in small ruminants, especially those raised in warm humid environments. The overuse of anthelmintics has resulted in anthelmintic resistance of gastrointestinal nematodes to most of the available anthelmintics. Copper sulfate has been used as an anthelmintic early in the previous century and more recently has been shown efficacious in sheep. Copper oxide wire capsules have been recently shown to be effective as an anthelmintic in both sheep and goats. The objective of this study was to compare copper sulfate at two dose levels as an anthelmintic to copper oxide wire particles. This study was conducted with Angora does that were 2 years of age or older. Fecal samples were taken for three consecutive days before treatments were administered and goats stratified by fecal egg count (FEC) and randomly assigned to treatments, 10 goats per treatment. Goats were fasted overnight prior to treatment administration. Four treatments were administered: N, negative control administered a water drench; C, 4 g of copper oxide wire particles administered in a gelatin capsule; L, low dose of copper sulfate (16.5 mg/kg BW); H, high dose of copper sulfate (33 mg/kg BW). Copper sulfate treatments were administered as a 1.5% drench. Fecal samples were taken at 7, 8 and 9 d post- treatment and fecal egg count reduction (FECR) calculated. Fecal egg counts were conducted by the McMaster procedure. Data were analyzed by the SAS NPAR1WAY procedure for non-parametric tests. Mean FEC for the group before treatment was 5,350 eggs/g (range 200-29,900). FEC was not significantly reduced by N (FECR = 44%; P > 0.10). FEC was significantly reduced ( P < 0.05) by L (FECR = 83%), C (FECR = 77% ), and H (FECR = 67% ). Copper sulfate drench at both dose levels was equally effective to copper oxide wire capsules in reducing fecal egg counts of Angora goats.


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