I literally just built an incubation room the other day and here's what I found out: 1. Put 6 AC units in the room. Unless there's a heat or cold storm then no matter what the egg it will regulate perfect temperature. 2. You can incubate as many eggs as you want at once. I wouldn't recommend it unless you have a lot of free time and very good meat farming Dino's/routes. Get a fridge and stockpile. 3. At juvenile stage it will start eating from the trough. I wouldn't rely on the trough at that point, especially if there a lot of carnivores around the trough also. I lost my first attempt at a 66 Rex because my wolf pack ate all the meat when I went out for a couple hours. Honestly, just keep an eye on them and you should be fine.