Vitamin A is essential for all vertebrates. Birth defects may occur with either deficiency or excess vitamin A. High levels of vitamin A occur in some commercial cat foods due to the use of liver. Toxicity, teratogenicity, and metabolism of vitamin A were the focus of the research. The first objective was to define a safe upper level of vitamin A for cats during gestation. It was demonstrated that a high level of vitamin A added to the diets had potential to cause birth defects in the kittens, but not toxicity in the queen. The second study examined chronic vitamin A toxicity in female cats. It was found that cats in this study consumed far more vitamin A per kg body weight and had fewer signs of toxicity than reported cases in other species. A tracer was used to investigate whether cats given diets with high levels of vitamin A had the ability to safely metabolize excess vitamin A. Cats given a high vitamin A diet were able to efficiently remove it from plasma. Pet food manufacturers should find this information useful for formulating healthy cat foods for both gestating queens and adult cats.
| Autorius: | Tammy Freytag |
| Leidėjas: | LAP LAMBERT Academic Publishing |
| Išleidimo metai: | 2010 |
| Knygos puslapių skaičius: | 140 |
| ISBN-10: | 3838304977 |
| ISBN-13: | 9783838304977 |
| Formatas: | Knyga minkštu viršeliu |
| Kalba: | Anglų |
| Žanras: | Veterinary medicine |
Parašykite atsiliepimą apie „Vitamin A Nutrition in Domestic Cats: Metabolism and Toxicity“
