What are the nutritional requirements of foxes for vitamins?

Vitamins are nutrients for animals and important trace organic compounds essential for animal growth and development, playing an extremely important role in the body's metabolism, growth, development and health. Vitamins are also components of enzymes. For this reason, vitamins are absolutely indispensable for the nutrition of foxes. When vitamins are insufficient, the synthesis of various enzymes and the absorption of some nutrients are disrupted, which can trigger vitamin deficiency diseases.

Many freshwater fish and marine fish contain thiaminase, and feeding foxes large amounts of fish containing thiaminase can lead to the destruction of vitamin B1, causing foxes to develop vitamin B1 deficiency. To prevent this disease, first, limit the amount of fish containing thiaminase fed, keeping it below 20%, while mixing in other fish. Second, when feeding large amounts of fish containing thiaminase, alternate raw and cooked feeding periods.

In the daily diet of foxes, the proportion of marine fish, meat products and fish meal should be formulated at a ratio of 1:1:1, and yeast should be supplied at 1.5-2 grams per 418 kilojoules (100 kilocalories) of metabolizable energy, which can basically ensure the requirements for vitamin A, D and B-complex vitamins. Feedstuffs rich in vitamins include: liver, milk, yeast and cod liver oil. To supplement the need for vitamins, medicinal vitamin concentrates or multivitamin preparations can be used.