. Poultry diseases and their treatment. Poultry. POULTRY DISEASES AND THEIR TREATMENT. 127 Lipcitnis z'ariabilis and Goiiiodcs dissiinilis, is shown in figs. 25 and 26 Fig. 25. Lipcurus va- riabilis. A louse that infests poul- try. Much enlarged. (From Banks after Denny). F i g. 26. Goiiiodcs dissiinilis. a louse that infests poul- try. Much enlarged. (From Banks after Denny). A short account of the mode of life; the conditions which favor their presence ; their effect upon the birds; and the gen- eralized life history of hen lice are given in Leaflet No. 57 of the English Board
. Poultry diseases and their treatment. Poultry. POULTRY DISEASES AND THEIR TREATMENT. 127 Lipcitnis z'ariabilis and Goiiiodcs dissiinilis, is shown in figs. 25 and 26 Fig. 25. Lipcurus va- riabilis. A louse that infests poul- try. Much enlarged. (From Banks after Denny). F i g. 26. Goiiiodcs dissiinilis. a louse that infests poul- try. Much enlarged. (From Banks after Denny). A short account of the mode of life; the conditions which favor their presence ; their effect upon the birds; and the gen- eralized life history of hen lice are given in Leaflet No. 57 of the English Board of Agriculture, pp. 3 and 4. From this source the following is quoted : "These Mallophaga have not a piercing mouth, their mouth is simply used for biting. They subsist upon the productions of the skin and fragments of feathers. They cause violent itching, and bite sharply, and must produce considerable pain when pres- ent in large numbers, as is too often the case. The feathers, especially the saddle hackle, generally show notched edges with lice infestation. Eight distinct species of lice attack fowls. The presence of these lice is generally ascribed to too uniform or insufficient nutrition, or else to damp, dark, and dirty runs, especially those badly ventilated. Food, either when uniform or insufficient, has no effect upon their presence. Dark, damp places, however, when dirty, are sure to harbor all these pests, e-specially when badly ventilated. It is also said that breed affects their presence, but observation tends to show that all breeds are more or less subjected to infestation. In every case they set up severe irritation and inflammation of the skin, which often leads to stunted growth, and even death. Lice anrl other parasites flourish on unhealthy ;. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble
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Keywords: ., bookauthorpe, bookcentury1900, bookdecade1910, booksubjectpoultry
