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Skin Nutritional - Pathology (view source)
Revision as of 12:26, 29 October 2008
, 12:26, 29 October 2008no edit summary
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===General===
*Often combined deficiency which improves when animal is fed a balnced diet
*Sometimes caused by change in demand (pregnancy, growth, cold weather) or due to disease
===Zinc deficiency===
*Mainly in dogs and pigs, sometimes ruminants
*'''In pigs''':
**Grossly:circumscribed reddened papules and plaques, thick crusting and scaling, fissures along ventral abdomen and medial thighs, sometimes generalised
**Microscopically: parakeratosis, acantosis, pseudoepitheliomatous hyperplasia, hypergranulosis
**Commonly secondary bacterial dermatitis
*'''In dogs''':
**Siberian huskies and Alaskan malamutes:
***Grossly: scales and crusts around mouthm chin, eyes, joints, prepuse, scrotum, vulva
***Microscopically: diffuse hyperkeratosis extending to follicles, superficial perivascular dermatitis with eosinophils
**Rapidly growing puppies:
***Grossly: scaly plaques on skin, nasal planum and foot pads
*'''In ruminants''':
**Grossly: alopecia, crusts and scales on face, neck and distal extremities and mucocutaneous junctions
**Microscopically: parakeratosis, sometimes hyperkeratosis
===Copper deficiency===
===Vitamin A deficeincy===
===Vitamin E deficiency===