Diseases of domesticated birds (1920) Diseases of domesticated birds diseasesofdomest00ward Year: 1920 Fig. 41. Mass body louse eggs attached to feather. Greatly enlarged. (Bish- opp and Wood) birds to become dry before night. By the dipping method the cost for material is 58 cents per hundred birds. For material and labor both, it is 71 cents. Bishopp and Wood note that several other agents are effective in destroying lice, but are more expensive than so- dium fluorid. Flowers of sulphur applied with a dust can in an amount of about 6 pounds per hun- dred fowls is effective in about four da
Diseases of domesticated birds (1920) Diseases of domesticated birds diseasesofdomest00ward Year: 1920 Fig. 41. Mass body louse eggs attached to feather. Greatly enlarged. (Bish- opp and Wood) birds to become dry before night. By the dipping method the cost for material is 58 cents per hundred birds. For material and labor both, it is 71 cents. Bishopp and Wood note that several other agents are effective in destroying lice, but are more expensive than so- dium fluorid. Flowers of sulphur applied with a dust can in an amount of about 6 pounds per hun- dred fowls is effective in about four days. Dip- ping fowls in a solution of 1 ounce of laundry soap to a gallon of water, rejDeated in ten days is ef- fective. Herrick strongly recommends the Cornell or Lowry dusting powder made as follows: Two and one-half pounds of plaster of Paris is spread in a shallow pan or tray. One-fourth pint of crude carbolic acid is poured into a cup, and into this is poured three-fourths pint of gasoline. The mix- ture of acid and gasoline is poured over the plas- ter of Paris and thoroughly mixed. It is then rubbed through a wire window screen on a piece of paper and allowed to stand for from one and one-half to two hours or until thoroughly dry. It must not be placed near a flame or any heat. The powder should be kept in a closed can or jar, where it will retain its strength for a long time. The powder is applied by means of an ordinary sifter or with the fingers. It is worked in among the feathers about the vent, in the fluff, and under the wdngs. Two and perhaps three applications should be made. A small pinch of the powder is sufiicient for a fowl. The rooster should receive especial care in being kept free from lice, as he is an im- portant factor in spreading the parasites. The expense of this treatment including la- bor should not exceed 32 cents per hundred fowls. Fig. 42. Large hen louse. rpj effectiveness of this method of dusting (Gomiocotes abdonn- ,.,«,., n i • • i nal
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