This may may be what you need.

This is the Michieletto livestock trailer with a few extras.
I have added steering to the front and rear axles so you can maneuver around those tight little farms.
I have also added a 2nd deck to carry more animals, it now supports
30 cattle
48 sheep
42 pigs

To hold the cattle you need to open the roof and for the pigs and sheep it needs to closed.
The gates inside move into position to hold each animal type.