Line 8:
Line 8:
}}
}}
<br>
<br>
+
+
===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===