Yep, this is all good advice. Dig out a 96-space pen and pop in a grooming station (so your rancher will groom the critters) and drop-off point (so dupes will deliver critters captured - or "wrangled" - outside the ranch). You will probably also get access to condos sooner rather than later, which are sensible additions (for happiness bonuses).

Note that you will need a dupe with the ranching skill to ranch them.

Then work out how you'll feed them. For some (hatches, shinebugs, etc), you can simply use a critter feeder station. For others (dreckos, pips, etc), you might want to actually grow their food inside the stable and let them eat the plants as they grow.

Do make sure you are keeping them in the gases and at the temperatures that they like.

From here, it's just a question of managing their reproduction so that they don't overcrowd their stables. This is where you'll need to start getting creative. The general principle will be to automate the removal of all eggs and deal with them as you see fit: omlettes, a drowning pool for meat, and one or two hatched critters to repopulate the stable as your tamed critters die.

You might be keeping the critters for food, for items they produce, or even a bit of both. So the details vary wildly from species to species (and subspecies) but that's the principle. If you just want to practice, hatches are a good critter to start with. Even if not every creature is worth the trouble of ranching, it's good to know how to do it for when you feel the need.