Nutrition Related

Taurine Deficiency

Taurine is a required amino acid that they can’t produce on their own. It must be supplied in their diet. Supplementing is a common practice in the U.S. where ranchers often feed foxes pet food. Generally, dog food does not […]

Rickets: Calcium Phosphorus Deficiency

Calcium required for growth (seven to thirty-seven weeks of age) is between 0.5 percent and 0.6 percent of the dry diet. The ratio between calcium and phosphorus is omportant and should be about 1.0 to 1.0. Abnormal ratios will result […]


It must be high quality for growth. from seven to 23 weeks of age between 25 percent adn 34 percent is required (dry matter basis for analysis). After this, between 19 percent and 25 percent is required. Deficiencies retard growth, […]

Chastek Paralysis (Vitamin B1 or Thiamine Deficiency)

This was first reported on the Chastek Fox Farm in Minnesota in 1936. It is due to this vitamin being destroyed in the feed. Certain fish contain the destructive enzyme known as thiaminase. Common ones include smelt, alewife, sucker, saltwater […]

Biotin Deficiency

Raw egg white contains an enzyme which destroys biotin in the ration. Experiments show with25 to 30 percent of the ration as raw egg whites, this condition will develop. Newborn foxes will show the deficiency if the females are deficient. […]