Livestock Management RANCHING
loss and paralysis from injection of toxic fl uids. They also transmit disease, including anaplasmosis, bovine piroplasmosis and tularemia.
Internal parasites • Include the gastro-intestinal nematodes, lungworms, liver fl ukes, adult and larval tapeworms and coccidian
• Cause just as many productivity problems and eco- nomic problems as the external ones.
• Internal parasites to be concerned about include 1) Haemonchus (large stomach worm) 2) Ostertagia (brown stomach worm Type I and Type II)
3) Trichostrongylus (stomach hair worm) 4) Cooperia (Cooper’s worm) 5) Oesophagostomum (nodular worm) The brown stomach worm is most economically
signifi cant. The normal life cycle is modifi ed when the immature form encysts itself in the lining of the abomasum causing severe damage to the stomach cells that produce acid and enzymes. This phenomenon is called pre-type II Ostertagiasis. All of these internal parasites infect different ar- eas of the digestive tract and require the cattle host
PRIVATE TREATY CARCASS DATA
to complete their lifecycle. They also cause numerous problems including depressed immune systems and increased disease susceptibility. They suppress ap- petites while limiting nutrient intake and absorption. Reduced nutrition impacts the animal’s performance in the form of reduced feed effi ciency, reduced rate of gain and reproduction, and lower immune response to vaccinations. Use parasiticides correctly to be effective and save
cost. The time to kill grubs is not necessarily the same time to kill fl ukes, mites, lice or internal parasites. Sea- sonal control of parasites may be more cost-effective than a blanket “shotgun” approach. Work with your local veterinarian to develop a
sound strategic deworming program. Editor’s note: David T. Bechtol, D.V.M., of Palo Duro
Consultation, Research & Feedlot with the help and sup- port of other colleagues and Merck Animal Health are providing a quick reference sheet on what to watch for and provide to your beef cattle herd during your 2014 calendar of events. For this month’s installment, Bechtol collaborated with Dr. Jim Furman, The Animal Center, Alliance, Neb.
Since 1952 – Crockett, Texas
BULLS ANGUS CHAROLAIS
HEREFORDS REGISTERED
18-24 MONTHS • EPDs READY FOR HEAVY SERVICE
OPEN AND BRED HEIFERS COWS AVAILABLE
CALL FOR AN APPOINTMENT TODAY BILL CLARK
936-544-9013 Gene Stokes, Manager
Website:
www.clarkangus.com Email:
clarkangus@aol.com
46 The Cattleman June 2014
thecattlemanmagazine.com
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