You're not the only one, its just some method to make the game even harder
It doesn't have much of a negative impact on the game if you don't rotate them, but I would honestly be okay if the need to do this were to be removed from the game.
Eventually, having the same toys for ever will have the same effect as having none at all. This affects the animals’ wellbeing number quite a bit. This in turn will impact the guests’ happiness and their willingness to donate and buy souvenirs and your zoo’s bottom line. The guests love seeing animals at or close to 100%, which you can only achieve with fully effective enrichment items. So neglect those toys at your own risk!
How to switch enrichment item? I delete the old enrichment item and replace the new enrichment items but there is no use.
Agreed. One of my cats loves his Christmas bauble, a rat soft toy, and old cardboard boxes (I'm sure he'd love one of those old gulpee boxes the animals on planet zoo are given!). The other loves his climbing tower! Same species, but different preferences, and they sure don't get bored of those preferences!
I'm sure that just cause a cat is 50 times as heavy, doesn't mean that it doesn't have a similar personality when it comes to toys!
What would be really awesome is if a real-life zookeeper could chime into this discussion...
What would be really awesome is if a real-life zookeeper could chime into this discussion...
Not a zookeeper, but I have worked in zoos a lot and I know a lot of zookeepers.
As I said in other posts, animals get their enrichment from all sorts of different things in their enclosure, and keepers do have to fight an uphill battle with ensuring the animals remain curious and stimulated, but it isn't with big grandiose changes to the habitat that this is achieved. Some enrichment items in the game aren't even necessarily enrichment items - the mud wallow, for example, is something a lot of animals literally need to behave naturally and remain healthy (elephants use mud as a natural insect repellent). But enrichment is usually defined as something that allows an animal to behave naturally (so enrichment is used to stimulate natural behaviours, not to give them a toy to play with, though that is part of it).
As an example, technically speaking in a real zoo the basic giraffe tall feeder (the food container) would be considered a form of enrichment, because it allows the giraffe to eat like it would in the wild. Blankets and boxes are given to primates because in the wild primates often use plant debris to make 'nests' that they sleep in. Things like the xylophone aren't often used, because they're easily destroyed by inquisitive animals and the small parts involved can be hazardous.
The items that are most often swapped out tend to be really basic. Cardboard boxes, burlap sacks, blankets and fitted sheets. The bigger and more complex items typically remain permanent fixtures, or at least remain in place for a lot longer than they do in-game.
I'd say the most realistic way to solve the in-game problem would be to assign a value to each enrichment item. More basic toys get boring more quickly, more complex toys last a lot longer, and animals never get bored of food enrichment (because they don't - as long as there's food involved animals don't tend to stray very far from whatever is producing the food, hence why the territories of carnivores in the wild always correspond with where grazing herds live, or the territories of primates correspond with where trees produce fruit and nuts) or bored of the bigger, more permanent things like mud wallows and waterfalls. I mean, really, if a hippo is getting bored with a mud wallow then why isn't it getting bored with a swimming pool? They need both to be hippos.
HOW.. DID.. I.. NOT... REALISE... THIS....!