Good question, but unfortunately I don't have an answer!
Beats me as to why there's a tyre swing in there. One things for sure; it's definitely not something that was left over from the last occupants of that enclosure, because the last occupants were freshwater turtles if I recall correctly! Unless the nearby Brown lemurs were in there at some point.
I guess it's just another example of how poor Ponderosa's enclosures are.
I am not sure what the idea is here but tire swings (and similar objects) can successfully be used as enrichment objects for tapirs. The idea is to place them in head height and then the tapirs have to push the tire/barrel/ball around to shake food out of it.
This looks like a nice enough Tapir enclosure to me. It has a natural substrate and a pool. I don't think it matters what the fencing is like, and, yes, a Tapir could use the tyre for enrichment. It's maybe a bit of a quirky enclosure, but I applaud that.
An outdoor enclosure of at least 200m² is required for a pair of adult tapirs. For each additional adult, the enclosure must be enlarged by 10 %. There must be additional enclosures allowing for the separation of the individuals. In temperate and cold climates indoor enclosures of 20 m² for each adult are mandatory, where temperature does not fall below 15 °C. Weather conditions permitting, the animals should, however, be given access to the outdoor enclosure all year round. The soil of the outdoor enclosure should be covered with sand or wood chips or, if the enclosure is large enough, grass. Protection from intense sun light should be ensured by providing shadowy spots. The animals must have access to a pool all year round.
