In scientific research, xylazine is a component of the most common anesthetic, ketamine-xylazine, which is used in rats, mice, hamster, and guinea pigs. The accounts of the actions and uses of xylazine in animals were reported as early as the late 1960s and early 1970s.
The Pekingese (also known as the Lion Dog, Peking Lion Dog, Pelchie Dog, or Peke) is an ancient breed of toy dog, originating in China.rs Flander's Mai Mai weighed only a little over 4 pounds and many other breeders had bred true miniatures of a similar size. He noted that miniatures may appear in a litter bred from full-sized Pekingese and were exhibited in classes for dogs less than 7 pounds at the major dog shows in Britain.
The Havanese, a breed of Bichon type, is the national dog of Cuba, developed from the now extinct Blanquito de la Habana (little white dog of Havana). The Blanquito descended from the also now extinct Bichon Tenerife.lthough the Havanese is an active and lively dog, they are small enough that many of their exercise needs can be met in a house or yard, and therefore they do not require as much vigorous exercise as other breeds may.