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Diseases/Parasites

Ohio 4H Horse Diseases + Parasites; from Beginning Horse Management Project Book

TermDefinition
Roundworms common in younger horses; more immune to infection as they age. Found in small intestine, 5-20 inches long, can cause rupture of small intestine when a large number of adult worms are present.
Bots THE ONLY INTESTINAL PARASITE WHERE THE ADULT IS ACTUALLY A FLY
Strongyles (Bloodworms) Most common+most harmful of intestinal parasites;vary in size from barely visible-nearly 2 inches. DIVIDED INTO 2 GROUPS; LARGE AND SMALL.
Pinworms don't cause much damage, but can be irritating. Commonly characterized by horse running its tail on fences, walls, or anything else.
Tapeworms Segmented worms that are not usually obvious. Gather in cecum, and large numbers can cause intestinal disturbances, such as colic, ulcers, and diarrhea.
Flies house type eat manure, stable type feed on blood.
Ticks carry several diseases. prefer areas such as the base of the mane and tail, end of tail, and ears. MAY CARRY LYME DISEASE.
Lice 2 types infect horses: biting & sucking. long, dirty hair is conductive to their life cycle, often found in winter months when horses are not thoroughly groomed.
Mites MICROSCOPIC ORGANISMS THAT CAUSE MANGE.
Ringworm caused by a fungal infection of the skin. circular lesions form and spread quickly.
Equine Flu 1-3 days. Fever: 102.5*F-105*F. Loss of appetite, dullness, depression, nasal discharge.
Rhino 2-10 days. Respiratory: cough w/ clear nasal discharge, slight fever (102*F). Abortive: Mares abort in last trimester, and if babies are born they are usually ill and die in a few days.
West Nile Virus Symptoms: incoordination, weakness in rear legs, stumbling. Head tilt, muscle twitches, down and unable to rise, coma, death.
Strangles 2-14 days. Fever: 103*F-105*F; depression, loss of appetite, reluctant to swallow. Think nasal discharge, lymph nodes under jaw abscess & burst.
Tetanus 7-10 days. Hyper-responsive to light, sound, and touch. Prolapse of third eyelid, gait/neck stiffnes, "sawhorse" stance, lock jaw, death.
Created by: lifemalik