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== Consequences of Vitamin E Deficiency ==
 
== Consequences of Vitamin E Deficiency ==
 
====Dogs:====  
 
====Dogs:====  
Vitamin E deficiency in dogs can develop anorexia, reproductive failure, skeletal and endocardial muscle degeneration, retinal degeneration, dermatitis, and subcutaneous [[oedema]]<ref>Elvehjem CA, et al. The effect of vitamin E on reproduction of dogs on milk diets. J Pediatr 1944;24:436-441.</ref><ref>Van Vleet JF. Experimentally induced vitamin E-selenium deficiency in the growing dog. JAVMA 1975; 166:769-774.</ref><ref name="Davidson">Davidson MG, et al. Retinal degeneration associated with vitamin E deficiency in hunting dogs. JAVMA 1998;213:645-651.</ref>. Dogs with concurrent intestinal disease affecting absorption of dietary fat (i.e., a [[Protein Losing Enteropathy|protein-losing enteropathy]]) as well as dogs with liver disease are at a higher risk of developing relative α-tocopherol deficiencies despite adequate dietary intake.
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Vitamin E deficiency in dogs can develop anorexia, reproductive failure, skeletal and endocardial muscle degeneration, retinal degeneration, dermatitis, and subcutaneous [[oedema]]<ref>Elvehjem CA, et al. The effect of vitamin E on reproduction of dogs on milk diets. J Pediatr 1944;24:436-441.</ref><ref>Van Vleet JF. Experimentally induced vitamin E-selenium deficiency in the growing dog. JAVMA 1975; 166:769-774.</ref><ref name="Davidson">Davidson MG, et al. Retinal degeneration associated with vitamin E deficiency in hunting dogs. JAVMA 1998;213:645-651.</ref>. Dogs with concurrent intestinal disease affecting absorption of dietary fat (i.e. a [[Protein Losing Enteropathy|protein-losing enteropathy]]) as well as dogs with [[Liver Pathology|liver disease]] are at a higher risk of developing relative α-tocopherol deficiencies despite adequate dietary intake.
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====Cats:====  
 
====Cats:====  
 
Clinical signs of vitamin E deficiency in cats and kittens include anorexia, depression, myopathy, and pansteatitis (i.e., painful nodular inflammation of adipose tissue)<ref>Gershoff SN and Norkin SA. Vitamin E deficiency in cats. J Nutr 1962;77:303-308.</ref><ref>Dennis JM and Alexander RW. Nutritional myopathy in a cat. Vet Rec 1982;111:195-196.</ref><ref name="Niza">Niza MM, et al. Feline pansteatitis revisited: hazards of unbalanced home-made diets. J Feline Med Surg 2003;5:271-277.</ref>. The level of vitamin E required to prevent clinical sign of deficiency is directly related to the level of dietary PUFAs.
 
Clinical signs of vitamin E deficiency in cats and kittens include anorexia, depression, myopathy, and pansteatitis (i.e., painful nodular inflammation of adipose tissue)<ref>Gershoff SN and Norkin SA. Vitamin E deficiency in cats. J Nutr 1962;77:303-308.</ref><ref>Dennis JM and Alexander RW. Nutritional myopathy in a cat. Vet Rec 1982;111:195-196.</ref><ref name="Niza">Niza MM, et al. Feline pansteatitis revisited: hazards of unbalanced home-made diets. J Feline Med Surg 2003;5:271-277.</ref>. The level of vitamin E required to prevent clinical sign of deficiency is directly related to the level of dietary PUFAs.
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