Cellophane tape method

Clear tape containing lice applied to a microscopic slide

Cellophane or scotch tape is used to collect surface mites and fur mites, and lice infestations in animals. The tape is applied sticky side down to collect any white flakes or powdery looking material that is on the skin and hair shafts. It is acceptable to collect a few hairs in this manner to look for nits or organisms clinging to the hair shafts. The tape is applied sticky side down onto a microscopic slide. A drop of oil or water can be placed on the slide between the tape and the slide, but it is not necessary when collecting for large organisms such as lice.

Cellophane tape preparation is also used to detect pinworms, which occur in primates, horses, rabbits, and rodents. The eggs are collected by using the sticky side of the tape against the anus and anal folds. The tape is then applied sticky side down on the slide with a drop of water or oil to reveal the pinworm ova and examined microscopically.

Cymothoa exigua

alieno_pesci

Cymothoa exigua in fish mouth

Cymothoa exigua, or the tongue-eating louse, is a parasitic crustacean of the family Cymothoidae. This parasite enters fish through the gills, and then attaches itself at the base of the fish’s tongue. The female attaches to the tongue and the male attaches on the gill arches beneath and behind the female. Females are 8–29 millimetres (0.3–1.1 in) long and 4–14 mm (0.16–0.55 in) in maximum width. Males are approximately 7.5–15 mm (0.3–0.6 in) long and 3–7 mm (0.12–0.28 in) wide. The parasite destroys the fish’s tongue, and then attaches itself to the stub of what was once its tongue and becomes the fish’s new tongue.

Necropsy Show and Tell

Example of one pathology image that can be found on website

One of the best collection of veterinary pathology images that can be found on-line is available at Dr. John M. King’s Necropsy Show and Tell.

Necropsy Show and Tell is a collection of 35mm slide images of necropsy specimens collected by Dr. John M. King at the Cornell College of Veterinary Medicine over the past 30 years. Selected images have been scanned into the computer and cataloged for your use in these pages. Searches to find individual images are performed by searching on keywords used to catalog each of the images.

Please visit:

https://secure.vet.cornell.edu/nst/

 

Probang

Probang used on cattle for FMD sampling (© All rights reserved by Eufmd)

Probang is surgical tool in veterinary medicine used to reach obstructions and either force them along the oesophagus by (gently and carefully) using the probang as a ram or, by using a hollow probang into which a rod with a corkscrew is attached, extract objects such as pieces of potato or turnip too long for the paunch, or to take samples like for example foot and mouth disease. It is used mainly for cattle, but it can be used also for small ruminants and other animals.

Kahun papyrus

Veterinary papyrus

Veterinary papyrus

Kahun papyrus (c. 1900 b.C.) is first written data about veterinary medicine and probably the most famous of these ancient Egyptian medical texts and provides the most extensive detail on veterinary matters. Several treatments for some diseases are described, including diseases of cattle, dogs, birds and fish and they are concentrating largely on afflictions that concern the animal’s eyes.

This is a part of text from the large fragment of papyrus:

[Treatment for the eyes (?) of a dog with (?)] the nest of a worm …………… if when it courses (?) scenting (?) the ground, it falls down, it should be said “mysterious prostration as to it.” When the incantations have been said I should thrust my hand within its hemu, a henu of water at my side. When the hand of a man reaches to wash the bone of its back, the man should wash his hand in this henu of water each time that the hand becomes gummed (?) until thou hast drawn forth the heat-dried blood, or anything else or the hesa (?). Thou wilt know that he is cured on the coming of the hesa. Also keep thy fingers ………….

Treatment for the eyes (?) of a bull with the wind (cold ?) If I see [a bull with] wind, he is with his eyes running, his forehead ? uden (wrinkled ?) the roots (gums ?) of his teeth red, his neck swollen (or raised ?): repeat the incantation for him. Let him be laid on his side, let him be sprinkled with cold water, let his eyes and his hoofs (?) and all his body be rubbed with gourds (?) or melons, let him be fumigated with gourds ……… wait herdsman ……………. be soaked ………….. that it draws in soaking ……….. until it dissolves into water: let him be rubbed with gourds of cucumbers. Thou shalt gash (?) him upon his nose and his tail, thou shalt say as to it, “he that has a cut either dies with it or lives with it.” If he does not recover and he is wrinkled (?) under thy fingers, and blinks (?) his eyes, thou shalt bandage his eyes with linen lighted with fire to stop the running.

Treatment for the eyes (?) of a bull with ushau in winter If I see a bull with [usham] in winter, and he is blinded (?) his two eyes are thick; gash thou as above. If I see abull with ushau in winter from cold, since its arrival in (?) summer, his temples are wrinkled (?), his eyes running, his stomach groaning (?), he does not walk (?) ………………….. thou all its body with ……….. as is done to one with a bruise (?).]

Note: According to this source, “ushau” is probably trypanosomiasis.