DERMATOLOGIC DISORDERS IN DOGS
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Date
1999
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COLLEGE OF VETERINARY AND ANIMAL SCIENCES-MANNUTHY,THRISSUR
Abstract
Fifty dermatological diseases in dogs presented to the University Veterinary
Hospital, Kokkaiai and Veterinary College Hospital, Mannuthy were systematically
investigated to find out the etiology. The results indicated that the conditions were
mostly caused by bacteria and ectoparasites (42% each) and only a small proportion
was caused by fungi (4%) and other factors (12%),
Sixteen different clinical conditions were identified viz. Superficial Bacterial
Folliculitis, Impetigo, Gentian Shepherd Pyoderma, Furunculosis, Infantile Pustular
Dermatoses. Localised Demodicosis, Generalised Demodicosis. Flea Bite
Hypersensitivity. Flea Bite Dermatitis, Tick infestation. Pediculosis.
Dermatophytosis, Dermatomycosis produced by non-dermatophyte. Callus Pyoderma.
Telogen Defluxion, Irritant Contact Dermatitis and Lentigo.
Among the dogs which were investigated, non-descript ones were mostly
affected probably due to lesser care and attention given to them.
The results suggested that animals kept full time indoor or outdoor were
almost equally affected whereas animals reared under semi intensive system were less
prone to dermatological diseases
In almost all conditions secondat^ lesions were predominant than primary
lesions probably due to the delay in medical attention The only condition, with
primary lesions alone, was lentigo.
Lesions of bacterial dermatitis were pi'edominant in the abdomen, hind legs
and trunk. In dermatophytosis. ear, trunk and hind legs were affected, where as in
dermatomycosis, head, trunk, hind legs and fore legs were aiTected The lesions
produced by ectoparasites were mostly in the back followed by trunk and fore legs
No characteristic distribution of les'ons could be detected in other conditions, with an
exception of callus pyoderma in which lesions were seen at the pressure points
The different clinical bacterial dermatitis were produced by Staphylococcus
imcrmediiis. Ectoparasitic conditions were mostly produced by I)ennkJex cams.
followed by fleas, ticks and lice Some cases of the ectoparasitic conditions
developed secondary bacterial infection with S. intermedius There were four clinical
conditions, namely callus pyoderma, telogen defluxion, irritant contact dermatitis and
lentigo caused by factors other than bacteria, fungi and ectoparasites
The haematological and serum biochemical parameters studied did not suggest
any systemic diseases. A significant reduction in haemoglobin level was noticed in
impetigo, generalised demodicosis and flea bite hypersensitivitv RBC counts were
significantly reduced in impetigo and folliculitis The total leukocyte count showed
sienificant difference from thcit of control animals, in conditions such as folliculitis.
German Shepherd Pvoderma. fuainculosis. localised demodicosis. ueneralised
demodicosis. tlea bile hvpersensitivity. tlea bite dermatitis, tick infestation and callus
pvoderma: suggesting primary or secondary bacterial infections
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