FYI: Pigs, dogs and poultry were introduced prior to European contact, and horses, sheep and cattle in the late 19th century. Most of the livestock introduced from Asia and Australia in the 1920s and 1930s were slaughtered during World War II. In spite of active encouragement of livestock projects by the colonial Administration and the national government, most attempts at commercial production have failed. Pig and poultry production have been the most successful. In 1990 there were an estimated 3,000,000 chickens, 1,000 horses, 103,000 cattle, 2,000,000 pigs, 4,000 sheep and 14,000 goats.