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The incapacity to synthesize ascorbic acid (AA) is due to the lack of activity of l-gulonolactone oxidase (GLO), which catalyzes the last step of AA biosynthesis. It was postulated that vertebrates unable to synthesize AA had sufficient amounts of this nutrient in their diet and consequently did not need to preserve synthetic capability. In the present study, we analyzed the GLO activity in kidney...
Dietary habits in the wild and gastrointestinal anatomy and function have established that the ostrich is an herbivore. Ostriches are not turkeys, but turkeys may be the best avian model we have from which to predict the ostrich's nutrient needs. To minimize leg abnormalities in ostrich chicks, it may be helpful to restrict weight gain by limiting dietary protein concentrations below those recommended...
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