. Annual report of the North Carolina Agricultural Experiment Station. dition Powder ISTo. 2 (seepage 105). 2. Confine animals in an air-tight house and fumi-gate for half-hour with equal parts pine tar, sulphurand turpentine, by mixing and adding a number ofburning coals. Renew coals as often as needed. the caecum worm.— Trichocephalus affinis. This is a nematode worm, from 1J to 3J inches long,and shaped like a drovers whip-lash. It infests thegi^worim^X large intestine or caecum of cattle, and more rarely-natural size*16 sneeP an(* goats. Like most nematodes, this worm hasno alternate host,
. Annual report of the North Carolina Agricultural Experiment Station. dition Powder ISTo. 2 (seepage 105). 2. Confine animals in an air-tight house and fumi-gate for half-hour with equal parts pine tar, sulphurand turpentine, by mixing and adding a number ofburning coals. Renew coals as often as needed. the caecum worm.— Trichocephalus affinis. This is a nematode worm, from 1J to 3J inches long,and shaped like a drovers whip-lash. It infests thegi^worim^X large intestine or caecum of cattle, and more rarely-natural size*16 sneeP an(* goats. Like most nematodes, this worm hasno alternate host, but passes as an egg from an infestedanimal to the ground and thence back with the herbage land is required for conserving the eggs until they are takenup by some animal. The symptoms of infestation are obscure. Thedamage is not generally very great except when the parasites areunusually abundant. Treatment: Tonics, (Formula No. 1) and any convenient vermi-fuge with disinfection of pasture by means of kainit or lime. PARASITES OF DOMESTIC ANIMALS. 113. Pig. 6—Ox-Warble or Heel Fly. Lineshows exact size. THE LARGE ROUND WORM OF CALF. AsCdris Vltuli. This is a nematode worm from | inchto li inch long, of a roseate or pinkishcolor. It infests the small intestine andstomach of young cattle, often causingsevere inflammation and death of thehost. As much as 15 quarts of theseworms have been found in a single ani-mal. The parasite gains access to itshost similar to the caecum worm. Treatment: An active vermifuge atnight followed by a purge in the morn-ing. See table, page 105. B.—Insect Parasites of Cattle. THE OX-WARBLE, BOT, OR HEEL FLY. Hyjpoderma lineata. The warble or bot-fly, belongs to theDiptera. It is a hairy, blackfly, about J inch long with 4white lines down the upperside of the thorax or chest(Fig. 6.) The life history ofthis insect has been recentlyworked out by Drs. CooperCurtice and C. V. Riley, ofthe U. S. Dept. of Agricul-ture. The female fly appear
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectagriculture, bookyear
