Trying to Pen a Muffalo

[Rickward Sinnerhands]

I am trying to pen a muffalo, right now the pen is bigger than the entirety of my base (there's like 5 people living there its a lot of space) it seems like no matter how big I make this pen it just keeps telling me how many damn cows I can put in it. some people have said you should be able to just put animals in the pens however you want but my game keeps telling me there isn't a pen to hold the muffalo and they're going to wander away. can you just not pen muffalo?? does anyone know?? I've looked everywhere and cannot find an answer. should've raised donkeys.

[ᖇIᑎ]

Did you put a pen marker in the pen? It has to be an enclosed area.

[grapplehoeker]

First you have to build a pen and in order to activate the pen, you must place a Pen marker inside it. You may (should) also build a roofed barn attached to the pen, where the animals may rest. It's also a good idea to place a small stockpile for hay and kibble inside the barn so that you can supplement the food that grows inside the penned area.
https://steamcommunity.com/sharedfiles/filedetails/?id=2592160526
Note the animal flap, a door for animals to enter the barn... it's this that makes the enclosed roofed room a barn and connects it to the penned pasture.
The Pen Marker allows you to control and manage how the pen works. Click on the Pen Marker to open the infobox.
https://steamcommunity.com/sharedfiles/filedetails/?id=2592160884
An animal pen will allow all farm animals to be penned by default, including gender, so you may select precisely which type of animals and gender may be penned there. It just shows cows, goats and chickens as examples.
https://steamcommunity.com/sharedfiles/filedetails/?id=2592161554
This is the important one. Here you can clearly see how many animals the pen can support with growable food inside the pen. It also shows the food you supplement that with (hay/kibble) and so if this is the only pen, then you can manage the food requirements easily and monitor the number of animals to ensure they do not over populate or that you don't under feed them.
In the example above, I can clearly see that despite being a 'large' pen, it does not grow enough to sustain the number (and size) of the animls penned there, and so it must be supplemented with additional animal feed... in this case at least every 7 days.
With multiple pens, your handlers will automatically move animals around in order to maintain the best food/animal ratio.
I hope that helps ;)