The Congress finds that animals and activities which are regulated under this chapter are either in interstate or foreign commerce or substantially affect such commerce or the free flow thereof, and that regulation of animals and activities as provided in this chapter is necessary to prevent and eliminate burdens upon such commerce and to effectively regulate such commerce, in order—
((1)) to insure that animals intended for use in research facilities or for exhibition purposes or for use as pets are provided humane care and treatment;
((2)) to assure the humane treatment of animals during transportation in commerce; and
((3)) to protect the owners of animals from the theft of their animals by preventing the sale or use of animals which have been stolen.