Singapore is an island country with an area of about 620.5 km2 (216.7 mi2) and a population of more than 2.5 million. The city is highly urbanized with its main economic emphases on trade, industry and harbour services. Animal husbandry activities in the country is, therefore, confined to the raising of pigs and poultry for local consumption. Small numbers of cattle, goat, duck and quail are also produced. With a highly intensive animal production system, Singapore is able to be fully self-sufficient in pork and chicken eggs and 79 percent self-sufficient in poultry.