Killer pastures

One of the most challenging problems facing the owners of livestock, and small ruminants in particular, is that of internal parasites like barber pole worms. At one time, we thought this problem was a thing of the past when anthelmintic drugs like fenbendazole and ivermectin were developed. However, this reprieve was short-lived as parasites soon developed resistance to these new tools. Some innovative producers are now turning to nature’s way of reducing internal parasite burdens on their livestock: Grazing management that reduces parasite infestation, and using pasture plants that contain compounds that are antagonistic to the worms. Read full article by Dale Strickler from Premier 1 Suppl

BioWorma® Now Available

BioWorma® can now be purchased in the US. Previously, livestock producers could only purchase Livamol, the supplement that contains BioWorma®. This is because EPA restricts the sale of BioWorma® to veterinarians and feed premixers. Premier 1 Sheep Supplies (in Iowa) is now selling 15-lb. pails of BioWorma®. Premier is able to sell BioWorma® directly to producers because it has veterinarians on-staff. BioWorma® contains 34.2% fungus (Duddingtonia flagrans), 500,000 units per gram. Livamol® with BioWorma® contains only 2.2% fungus; 34,000 units per gram. The feeding rate of BioWorma® is 0.1 ounces per 100 lbs. live weight whereas the feeding rate of Livamol® with BioWorma® is 1.6 ounces per

New Fact Sheet on Management

Another fact sheet in the Best Management Practices to Control Internal Parasites in Small Ruminants series has been published (#12). Management was written by Dr. Steve Hart from Langston University (in Oklahoma). All of the Best Management Practices fact sheets are being written and reviewed by members of the American Consortium for Small Ruminant Parasite Control. The fact sheet series will be completed in 2020 and will serve as a invaluable resource for producers and educators alike. Download Management Fact Sheet Other fact sheets in series

Immune Systems Decline in Old Age

Researchers studying wild Soay sheep on the remote St Kilda archipelago have revealed that the animals' immune responses to parasitic worms decline through adulthood. Dr Tom McNeilly, of the Moredun Research Institute, said: "With the drive for more efficient farming practices, efforts are being made to extend the productive life-span of livestock species, with means the average age of farmed animals is likely to increase in future. Studies such as these are critical as they provide important information on the likely consequences of farming older animals in terms of their ability to fight infectious diseases." Read article in Science Daily

Spring Strategies

Contrary to what many people think, the infective larval forms of many internal parasites of sheep and goats can survive surprisingly well through the cold winters on typical pastures in Ohio. On-farm research conducted in the past few years at several locations in Ohio has reconfirmed that overwintered larvae can create heavy worm burdens in ewes and lambs, and this can result in severe disease as early as mid-June. In addition, adult animals can provide a new generation of infective larvae in the spring with the eggs they deposit on pastures in their manure. In a 2012 fact sheet from Ohio State Universities, strategies for managing parasitism in the spring are discussed. Read full fact she

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