Study area
Nigeria is bordered by Benin Republic, Niger Republic, Chad, Cameroon,
and the Atlantic Ocean to the southern part. Nigeria’s porous
international borders with neighbouring countries make trans-border
trading easy with free movement of livestock in both directions.
Administratively, Nigeria is divided into 36 states and the Federal
Capital Territory (FCT), Abuja. Pig production activities are carried
out in parts of 30 States of the country either as commercial/backyard
intensive farms or free-roaming extensive pig production systems (Fasina
et al., 2012). Due to the high demand for live pigs, mobility of these
animals is unregulated usually from the North-Central to the Southern
coastal parts of the country where farmers and traders can obtain higher
prices for their animals.