Morris Animal Foundation has funded avian studies for nearly 25 years, and much of that research has gone into improving nutrition for companion birds. A few highlights are below.
All birds require vitamin A to maintain the functionality of their vision, the lining of the mouth, the esophagus and other body surfaces. Nutritionally, though, vitamin A is the most challenging of the vitamins because it is the most likely vitamin to be either deficient or excessive in the diets of companion birds. Both deficiencies and excesses of vitamin A result in changes in behavior, and at toxic levels, vitamin A causes birds to be hyperexcitable and very vocal. A Foundation-funded study in the late 1990s determined the optimum level of vitamin A in the diet of cockatiels. Researchers learned that a level of 2,000 IU per kilogram of dietary intake gives optimum health. The knowledge led to better diets for these birds.
Vitamin D3 and calcium are also essential nutrients for parrots, and excesses and deficiencies of these nutrients commonly cause disease. A second Foundation-funded study examined avian diets containing various concentrations of vitamin D3 and calcium to determine optimal amounts for growth and reproduction in parrots. Before that study, nothing was known about these two key elements. This revolutionary study in the late 1990s showed that in budgies (parakeets), one of most commonly kept birds in the United States, safe and adequate levels of dietary calcium were less than half of the standard. As a result, commercial diets prepared for them at that time contained a toxic level of calcium. Fortunately, the vitamin D3 concentrations found in commercial pet diets were deemed safe for budgerigars. With the information determined by this study, new diets were formulated for these birds to help increase their life span and quality of life.
Foundation-funded research into optimizing bird nutrition continues today. A current study is reviewing the diets of wild species to learn how to improve diets of captive birds, such as macaws, Amazon parrots, cockatoos and other large psittacine birds. Hand-reared chicks often suffer from nutritional deficiencies, aspiration due to the finely ground texture of the feed and slow digestion, which causes dehydration and malnutrition. With Foundation funding, researchers are analyzing the nutrient content of the diets of wild chicks living in Peru, Mexico, Brazil and Costa Rica. They will use these measurements to formulate new hand-rearing diets for captive parrot chicks. If the new formulas improve nutrition and reduce acute and chronic health problems, the research would revolutionize hand-feeding and improve the health of companion parrots worldwide.
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