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| | Vitamin A Deficiency in Parrots and Other Birds |
 | | Symptoms of vitamin A deficiency depend on which organ system is affected (for instance the reproductive, digestive, or respiratory tracts) and which microorganism or combination of microorganisms is invading the patient. |
 | | A bird with vitamin A deficiency may show any of the following symptoms: sneezing, wheezing, nasal discharge, crusted or plugged nostrils, unthriftiness lethargy, depression, diarrhea, tail-bobbing, thinness, poor feather color, swollen eyes, ocular discharge, lack of appetite, gagging, foul-smelling breath and "slimy mouth". |
 | | The majority of vitamin A deficient diets are also lacking in other vitamins, proteins and minerals, so prevention must be aimed at an overall improvement in nutrition as well as offering appropriate vitamin supplementation. |
| www.multiscope.com /hotspot/vitamina.htm (734 words) |
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