kennel_keeper
Posted : 5/22/2006 5:05:23 AM
You are correct in assuming that the wolf's digestion is different to a degree. They (wolves) are designed to gorge and fast, so they can consume more food less often and can still recieve an average nutrient requirement.
Vitamin A is a fat-soluable vitamin, so it doesn't get excreted in the urine like, say, vitamin C, which is a water soluable vitamin. This is the reason that care should be considered when feeding to much of any food with a high concentration of fat soluable vitamins. They build up in the liver and tissues, causing problems. With wolves, there feeding *habits* prevent overload on the liver. The body has time to absorb and utilize the vitamins and minerals they are consuming before eating again.
Our "dogs" eat daily, and they bodies are not used to fasting for days, although they can survive, they can build up toxins from excess fat soluable vitamins. Also, they don't have a huge territory to patrol and don't get near the same exercise as a wolf would, which would also help to use up the excess vitamins.