. Annual report of the North Carolina Agricultural Experiment Station. gth. male. Magnined 25 diameters. Tr J . 6 •• Very common. 22. Menopon obscurum—Piaget.—This is a dark-yellowish, brown-banded, crescent-headed louse,about ¥o inch long. Not common. No. 16 above is also common on the duck. Protozoan Parasites. The protozoa are the lowest and simplest form ofanimal life, the individual consisting of but a sin-gle cell. They are so small that the highest powerof the microscope is required to make them visible. The most important parasite of fowls belongingto this branch is the so-called Chole
. Annual report of the North Carolina Agricultural Experiment Station. gth. male. Magnined 25 diameters. Tr J . 6 •• Very common. 22. Menopon obscurum—Piaget.—This is a dark-yellowish, brown-banded, crescent-headed louse,about ¥o inch long. Not common. No. 16 above is also common on the duck. Protozoan Parasites. The protozoa are the lowest and simplest form ofanimal life, the individual consisting of but a sin-gle cell. They are so small that the highest powerof the microscope is required to make them visible. The most important parasite of fowls belongingto this branch is the so-called Cholera Germ—Gregarina avium irdestinalis.—These germs obtain entrance to the stomach andbowels of birds with contaminated food and within, they attack the mucus membranesand multiply very rapidly, causing inflammationand speedy death. Besides the bowels which theymost commonly infest, the germs may attack alsothe liver and lungs. The usual symptoms are diar-rhoea, greenish discharges, loss of appetite, andemaciation. Death is usually very Fig. 12.—L i p e u r u s squalidus. Hair-iine Treatment: Nothing can save a badly diseased shows exact size. , . , „ t> r a i t« bird from speedy death. Kemove from nock, dis-infect premises and feeding vessels, and change the food. The disease is very contagious. Dead birds should be burned or deeplyburied. PARASITES OF POULTRY. 275 Remedies for Poultry Lice. As previously mentioned, the presence of lice of the Order Mallo-phaga on the bodies of the fowls does not imply any great damage,unless these insects burrow into the flesh, which they are not easilyable to do. They may, when very abundant, eat the soft fluff offthe feathers, giving the bird a rather ragged appearance. On theother hand, their presence may be of some utility to fowls havingsuch a distaste for water as most domestic birds have. The lice actas scavengers and remove excretions which might have proven inju-rious to the birds health.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectagriculture, bookyear
