. Veterinary studies for agricultural students. Veterinary medicine. PARASITISM. 93 appear by means of their own activity and habits; e. g., ticks, bots in horses, grubs in backs of cattle, and grubs in the nasal passages and bead cavities of sheep. It is well to remember also that many parasites can resist stronger medicines than the organs or tissues they invade; e. g., bots in the horse's stomach. EXTERNAL PARASITES. Most serious are the mite diseases: itch, mange, and sheep scab, lice, ticks and ringworms. Mite diseases (acariasis).—The various forms of itch or mange in horses, cattle, and
. Veterinary studies for agricultural students. Veterinary medicine. PARASITISM. 93 appear by means of their own activity and habits; e. g., ticks, bots in horses, grubs in backs of cattle, and grubs in the nasal passages and bead cavities of sheep. It is well to remember also that many parasites can resist stronger medicines than the organs or tissues they invade; e. g., bots in the horse's stomach. EXTERNAL PARASITES. Most serious are the mite diseases: itch, mange, and sheep scab, lice, ticks and ringworms. Mite diseases (acariasis).—The various forms of itch or mange in horses, cattle, and hogs ; scab in sheep; scabies in cats and dogs are all similar in cause, contagiousness, prevention, dam- age done and in FIG. 33. MANGE MITE. The cause of one form of horse mange. Psoroptes com munis equL. 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 the original Reynolds, Myron Herbert, 1865-. St. Paul, St. Anthony Park, Minn. , The author
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectveterin, bookyear1903
