I will start by saying that most of the boss fights last 5 to 10 minutes, but I can easily spend hours/days (or weeks when breeding) on the prep work.
For the Broodmother, I send in all the therizin’s, then I hang back with my yuti and daedon.
First thing I do is the yuti buff roar. Therizin’s only take 1 buff roar from the yuti to get the full buff effect.
Then I hope off to the daedon. Even though my daedon has 79k food, that will only last about 30 seconds when he has to deal 18 therizin’s (the more dinos he is healing, the more food each heal pulse uses). To counter the food consumption, the daedon is loaded with kibble. Unlike meat, kibble has no cooldown on the force feed, so you can spam force feed a hundred kibble in seconds. Non-iguandon kibble gives 60 food each, while iguandon kibble gives 120 food. On my alpha Broodmother fight, I brought around 2400 kibble and that really wasn’t enough. I’ll probably bring 3600+ for the dragon fights.
I right click for the daedon to start healing, then open the inventory screen to start spam force feeding him kibble. That keeps his food up and the healing going. When the yuti buff roar is starting to wear off (you can see the buff in the upper right corner, even with the inventory screen up), I hop back to the yuti, do the buff roar, then back to the daedon and start healing/force feeding kibble. Daedon’s can be set to do passive healing, but the extra time it takes for it to realize it needs to heal can cause the loss of dinos, so that is why I manually run the healing.
As for the veggie cakes, the therizin’s automatically eat them when they are are below 80% health (with a 30 second cooldown after each one is eaten). I just have to provide enough to last the fight.
So I never have to ride a therizin to get it healed.
As for the Manticore and my rexes/yuti, I hop on the first dino I can so the Manticore doesn’t kill me. Once I can isolate the yuti and I can safely switch, I do. Then I stay on the yuti for the rest of the fight.
When I need element, I do the Manticore Alpha because he gives the most element with the least risk. I only do the other bosses once for the tek engrams and boss trophies (unless someone else wants to do a specific boss).
My therizin’s are averaging about 25k health and 500% to 600% melee.
They also have 175 armor saddles, which makes a huge difference. I take a primitive saddle and upgrade it to apprentice level in Upgrade station. Then I craft a bunch of Armor augments and apply them to the saddle. 175 armor is the max an apprentice therizin saddle can have. After that, I throw it in the Upgrade Station’s Blueprint maker and make a blueprint. Then I take the blue print and mass produce the saddles.
Why only apprentice level? Because as you climb the quality tiers, the material costs really start to skyrocket. Apprentice level still gives you a very good saddle with no where near the cost that a mastercraft or ascendant one would. Yes, a master craft or ascendant saddle could have higher armor, but for the cost of one mc or asc saddle, I could make 5 or 6 of the apprentice ones.