Four care events
Hunger: feed the animal. Manure: clean the animal area. Thirst: give water. Mosquito: repel mosquitoes. Baby animals encounter hunger/manure events, and young animals encounter thirst/mosquito events.
Poses and feedback
Animals normally stand. An active event can change the pose to crouching. Feeding and watering can show a half-crouching eating or drinking pose near the trough; cleaning and repelling return the animal to its normal pose after successful care.
Completion
Wait for the care animation and status change. Some visual elements may persist briefly depending on the running game version; do not infer that an event remains active solely from a trough illustration.