. Diseases of domesticated birds. Poultry; Poultry; Birds. INTERNAL PARASITES 187 method is to introduce the dose into the crop by means of an oiled rubber tube inserted through the oral cavity and esophagus. The turpentine, diluted with an equal amount of olive oil may be ad- ministered by the mouth. If the mixture is given slowly with a spoon or medicine dropper the bird will swallow it naturally and will cause very little trouble. Three or four hours after giving the tur- pentine, the birds should receive another laxative dose of salts ad- ministered in a mash as before. Owing to the habit


. Diseases of domesticated birds. Poultry; Poultry; Birds. INTERNAL PARASITES 187 method is to introduce the dose into the crop by means of an oiled rubber tube inserted through the oral cavity and esophagus. The turpentine, diluted with an equal amount of olive oil may be ad- ministered by the mouth. If the mixture is given slowly with a spoon or medicine dropper the bird will swallow it naturally and will cause very little trouble. Three or four hours after giving the tur- pentine, the birds should receive another laxative dose of salts ad- ministered in a mash as before. Owing to the habit of burying their heads in the intestinal wall, tapeworms are very resistant to treatment. Consequently it is ad- visable to repeat the vermifuge treatment in about three weeks. Gutberlet reports favorably upon the use of lye for expelling tape- worms. A tablespoonful of concentrated lye was added to one gal- lon of a mixture of wheat and oats which was cooked slowly for two hours. Fifteen birds, after fasting for about fifteen hours, were allowed to eat the mixture. A second dose is given twelve hours after the first one. A number of other substances are employed to e^^pel tapeworms, but some fail on account of having lost their active properties. Areca nut in doses of 30 to 45 grains may be administered to fowls in the form of a pill, but turkeys do not tol- erate this remedy well. Powdered pomegranate root bark may be fed to fowls in a dose of one teaspoonful to each 50 birds. It may be followed by a purgative dose of 2 or 3 teaspoonfuls of castor oil per bird. Male fern in a dose varying from 30 grains to 1 dram of the powder may be given morning and evening before feeding. Megnin recommends treating pheasants for tapeworm with kamala, mixed into a paste with hard boiled eggs and bread. Prophylaxis. An accurate knowledge of the secondary host for each species of tapeworm, might suggest very effective preventive measures but in the absence of much of this information, such me


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