Monepantel Resistance After Two Years

A sheep farm in the Netherlands developed resistance to monepantel after using it for just two years. Monepantel (tradename = Zolvix®) is from a new class of anthelmintics called amino acetonitrile derivatives. It was first introduced in 2009 in New Zealand. It was introduced to the Netherlands in 2011. It is not available in the US. After a perceived lack of effectiveness in ivermectin and doramectin, the farm started using monepanel in July 2012, and since then, monepantel was used as the sole anthelmintic. Breeding sheep were treated twice each year in 2013 and 2014, and lambs two times in 2012, four times in 2013, and three times in 2014, before monepantel resistance was suspected. Two

Registration Deadline Extended

The registration deadline for the 2018 Delmarva Small Ruminant Conference All Worms All Day has been extended until Wednesday, December 5. The all-day conference will be held Saturday, December 8, 9:30 to 3:30 p.m., at the University of Maryland's Western Maryland Research & Education Center in Keedysville, Maryland. All topics will pertain to the control of internal parasites (worms + coccidia) in small ruminants. All speakers are members of the American Consortium for Small Ruminant Parasite Control (ACSRPC). Continuing education credits are available for veterinarians, certified veterinary technicians, and professional animal scientists. To register, go to https://allwormsallday.eventbri

Effect of Se and Cu Supplementation

Brazilian researchers examined the protein profile of lambs experimentally infected with Haemonchus contortus and supplemented with selenium and copper. Twenty-eight crossbred Corriedale x Texel five-month old male lambs were used. They were stratified into four groups of seven animals each, based on treatment: 1) infected and not treated; 2) infected and treated with sodium selenite; 3) infected and treated with copper; and 4) infected and treated with both sodium selenite and copper. Higher levels of total protein and gamma globulin were observed in the lambs treated with sodium selenite and copper on day 80. Copper acted as a growth promoter. The copper-supplemented groups exhibited high

Field Evaluation of BioWorma® in Sheep

The effectiveness of BioWorma® was assessed by total worm counts in tracer sheep placed in paddocks grazed by parasitized sheep which were fed a daily supplement with and without BioWorma® under group-feeding conditions. Further proof of concept was obtained by assessing the worm burdens and weight gains of the parasitized sheep, as well as the number of anthelmintic (“salvage”) treatments required when fecal egg counts exceeded a threshold level. The studies were conducted in Australia across a range of climatic zones/seasons. BioWorma® is a feed supplement that contains Duddingtonia flagrans, a nematode-trapping fungus. It was developed by an animal health company in Australia and has been

New Video: Using COWP

Dr. Reid Redden's latest Facebook video is about using copper oxide wire particles (COWP). COWP boluses have been shown to have efficacy against internal parasites in small ruminants. Dr. Redden is a Sheep & Goat Specialist with Texas A&M AgriLife Extension. This is the third video he has made about internal parasite control in small ruminants. Visit the ACSRPC Video Library to view his other videos.

WVU Professor Studies Parasites

Professor Scott Bowdridge has spent his entire adult life studying a parasite killing sheep. He may have just figured out how to stop it. The 42-year-old West Virginia University professor grew up on a small sheep farm in Southern California. He studied sheep at Cal State Chico, the University of Maine, Virginia Tech, and the Rutgers New Jersey Medical School before arriving at WVU in 2011. Bowdridge studies Texel and Katahdin sheep as well as the all-white St. Croix sheep, which may hold the key to making other breeds resistant to the parasite threatening the country’s sheep. He is a member of the American Consortium for Small Ruminant Parasite Control. Read article in WVU Magazine

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