Sheds increase the annual yields from livestock by a small percentage. This bonus is cumulative, so the player will get a bonus for each shed, as well as the bonuses from other buildings. The combined bonus for all sheds and other buildings shows up on the annual report in the buildings bonus field.
Sheds also allow the player to invest in chickens. One shed suffices for any amount of chickens, only limited by the number of available livestock tiles on the farm. For keeping pigs, the player will need both a shed and a well.
Sheds can be sold again at around half their cost of purchase if the player urgently needs cash.
Events Affecting Sheds
The following events affect player-owned sheds:
Fires will destroy all sheds (and barns.)
Civil War will destroy 3 out of 4 buildings chosen at random.
Angry Mob will destroy all player-owned buildings, including sheds.
Any chickens and pigs, that the player owns, will still remain on the farm unharmed, if events destroy the sheds, or if the player decides to sell them. However, new chickens and pigs cannot be purchased until at least one new shed has been built.
WikiPedia entry for Shed:
“The Necessity of Farm Structures in Nigeria,” American Journal of Engineering Rersearch, 2018: