It's the building for merging cattle, stall expansion, researching Tech Tree, purchasing gaming items, etc.
Increase Stalls: Every player has 2 unlocked stall rooms at the beginning. If player wants to scale up his/her stall to grow more cattle, he/she can go to Unlock Stall to increase the number of stall rooms
Merging System: merging system is one of the way player can use to improve the stats of one specific cattle. To improve a cattle's stat, player should put it on the left side by clicking add and put another cattle on the right side for consumption
Tech Tree: one of the most efficient ways to improve cattle's performance is to do research on Tech Tree in the field of breeding, milking, fighting. Check elaborate information here: