heel fly


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to heel fly: cattle grub

bot·fly

(bot'flī),
Robust, hairy fly of the order Diptera, often strikingly marked in black and yellow or gray, the larvae of which produce a variety of myiasis conditions in humans and various domestic animals, especially herbivores.

heel fly

heel

1. (rare) in cats and dogs, the hock joint or tarsus.
2. in ungulates, the place at the rear of the hoof or claw where horn and skin meet and where the wall of the hoof turns horizontally to become the sole.

heel abscess
one of the forms taken by foot abscess in sheep. There is pain and swelling at the affected heel, and separation and discharge of pus occurs at the skin-horn junction. The abscess is caused by infection with Fusobacterium necrophorum and Arcanobacterium pyogenes, the infection resulting from an extension of the infection from an interdigital dermatitis.
heel bug
see trombiculaautumnalis.
heel bulb necrosis
see infectious bulbar necrosis.
contracted heel
the heels of the affected hoof are closer together than normal, the frog is narrow and shrunken and the bars form a narrower angle than in the normal hoof. The horse is usually lame on the leg.
heel easing
trimming the foot so that the heels can spread more.
heel effect
unequal distribution of the x-ray beam intensity emitted from the x-ray tube. Due to angulation of the target, the distribution of the beam intensity decreases rapidly towards the anode due to absorption of the x-ray beam by the target and anode material.
heel fly
sheared heel
vertical separation occurs between the heels of a horse's hoof causing lameness. A chronic condition due usually to overuse of one heel because of a conformational imbalance.