Peafowls.Wowsers. I've barely done 48. What animals y'all breeding? I chose B&W ruffed lemurs and red ruffed lemurs because I can use 1 male for every 3 females and CCs. I also did peafowl, but they aren't as helpful
I have 4 enclosures, 1 male and 4-7 females. I keep the good females and distribute them to other enclosures. I buy new males from the market, so there is no inbreeding. Funnily enough I still had the zoo from last year and all I had to do was go ahead and run it at high speed. It probably took 3-4 hours for the 600 animals.
You can see that the zoo is doing quite well. I have 4 other enclosures, each with one animal (Siberian tiger, Indian Rhino, Red Panda and Dhole) so that guests don't just have to look only at peafowls
It was actually quite easy and would certainly have been finished faster, I always paused the game to release the animals so that I didn't overlook anything or it slipped through the message spam.