Wild silver-black fox grows and lives in mountains, forests, grasslands and cold regions. It is mainly carnivorous and captures rodents, frogs, fish, small animals and birds. At the same time, some plant seeds, berries, roots, stems, etc. are also collected. Generally, they grow fatter in autumn. With the severe cold winter, food is short and gradually becomes thinner. The food of domestic foxes mainly includes meat, fish, eggs, milk, blood, animal offal, fish meal, grain seeds and soybean extruded feed, etc. The changes in fat and thinness are not obvious.

Silver-black fox

The fox's sweat glands are underdeveloped, and Like dogs, they regulate their body temperature by opening their mouths and breathing quickly in hot weather. Therefore, breeders should pay attention to changes in ambient temperature, in hot summer, to prevent foxes from heat stroke. Silver-black foxes change their hair once a year, starting from March to April, from front to back, first from the head, then from the neck, forelimbs, to the buttocks and tail, and basically shedding from July to August. It also began to grow, and new needle hairs began to grow at the end of July. The growth sequence of new hairs is the same as that of depilation, and the fluff began to grow in large quantities. The color of summer hair is darker than that of winter. Silver and black fox skins mature later than blue fox skins, generally in mid-December, after heavy snowfall, all white boards are fully mature.