This mod adds configuration for transporting chickens to some trailers:

FARMTECH DPW 1800
Category: Flatbed Trailers
Configuration Price: $9 600
Capacity: 384 pieces

FARMTECH DDK 2400
Category: Trailers
Configuration Price: $7 200
Capacity: 288 pieces

STEMA TRIUS
Category: Miscellaneous
Configuration Price: $2 400
Capacity: 96 pieces

Version 1.0.0.1:
Bug fixes:
Fixed incorrect collision of the modified STEMA TRIUS trailer.
Fixed a parameter that caused the mod registers itself as a DLC.