US Code
CHAPTER 15— BUREAU OF ANIMAL INDUSTRY
§ 399. Domestic raising of fur-bearing animals; classification

(a) fox, rabbit, mink, chinchilla, marten, fisher, muskrat, karakul and all other fur-bearing animals, raised in captivity for breeding or other useful purposes shall be deemed domestic animals;
(b) such animals and the products thereof shall be deemed agricultural products; and
(c) the breeding, raising, producing, or marketing of such animals or their products by the producer shall be deemed an agricultural pursuit.

Structure US Code