Once you have a few dozen wolves, you won't lose them all in any attack. Throw some raw meat around to help them recover. I lose wolves at a pace that makes slaughtering them for meat unnecessary.

Helping your wolves fight tough enemies like Berserkers and fire-throwing surtlings is where archery helps the most. I have a short tower that lets me see all around and lets enemies see me. My wolf population is big enough to make this unnecessary, but I like to get involved.

Like Complaintdesk, I've seen some stuff that turned me into a spectator. Valheim will do that. I've only seen trolls go down from a distance, though. The overwhelming impression was that some sort of land piranha got them.

wait until you have stirred the kettle ...!

success
https://steamcommunity.com/sharedfiles/filedetails/?id=2850901887
got 2 wolves in my base
but my base in kinda out to sea and im scared when enemys attack their gonna destroy my own wall to get to them and then be stuck in water

Looking good. Your wolves will breed fast when you feed them. The cubs howl. I find it a pleasing sound. Once you have a dozen or so, enemies will die.

Originally posted by Polonius Ulf:

Looking good. Your wolves will breed fast when you feed them. The cubs howl. I find it a pleasing sound. Once you have a dozen or so, enemies will die.

I have wolfpacks now surrounding the exterior of my base. Solo strays have come to my rescue in remote locations on my starting continent. The first time it happened was in a far, far away mountain biome, and at first I thought they were attacking me! Scared the carp outta me.
As Polonius correctly attests, "emenies will die". During "The Ground is Shaking" I saw a troll hit from the front & behind by 2 of my two star wolves, at the same moment. Two hits dead. It was so much fun to see, one of those gaming moments a person never forgets.

As soon as you have two or three dozen, set them free. Take packs of five or so wolves to defensive stations and feed them well. You can have an open base, with wolves running free everywhere. That works great, attackers have no chance, but if you enjoy the sight of deer grazing on the lawn, you might want to keep the wolves between double fences.

An open base patrolled by wolves is ideal near the coast because a moat doesn't work close to shore and a big ugly wall obstructs the view of the sea. How are you going to enjoy a sunset from your deck?

Until I got wolves, I used roundpole fence which I patrolled. A lot. (I probably shouldn't have tried to fence off New Zealand.) When a fence was breached, workbenches were the immediate next target. They got destroyed so regularly, I finally put them inside wooden kiosks, which you can knock together pretty quick, and went to work sub-dividing Middle Earth into manageable regions.

Wolves and boars can be kept together in a dry moat or pen and they effectively defend one another. My inland base has boars, wolves grass and feed vegetables in the same moat, which I've made wider than normal, since nothing is getting across.

Boars will not root up growing veggies, nor ripe ones :( Just pull up the ripe vegetables with auto pickup off and leave them to feed the boars. If Valheim boars were more like Earth boars, you'd have to fence them away from the growing vegetables, but then you could just open the gate when the vegetables were ripe and the boars would harvest them for you.

Don't make a butcher knife. When it's slaughter time, toggle friendly fire and use the weapon you're skilling-up on.

Rotate your tires.

When I built my 2 star wolf & 2 star boar farm, I first determined that invasion events came from the north and or south of my base, so I built my pen to the east. Fortunately for me there was an abandoned red berry village to the east, so I built a massive earthen wall around that entire village. The area contained 3 outbuildings, a boar pen and a hunter's blind which I completely restored. I placed work benches inside the buildings as their distance from each other ensured near perfect workbench anti-spawn coverage. I also installed workbenches on or beside the earthen wall, as well as some out of sight up in the trees surrounding the area. I did end up having problems with one particularly bothersome Greydwarf Shaman, but I staked out the area one day to find out where it spawned, and placed a ward on the exact spot it spawned. I also installed wards underground beneath each gate entrance. I only ever find deer parts within the enclosed area. I do have a fence separating my wolves from my boars. The wolves have 2 separate breeding pens within their area, into which I place 2 when I want to breed them. I allow 8-12 wolves to mingle amongst the boar within their area, just in case something I have never witnessed happens.

I have never had a problem with spawns or invasions, other than one time an invasion raid from the swamp happened as my character was beginning the sleep cycle. As I generally begin my sleep cycle on the cusp between day and night, the swamp denizens had a good free-for-all against an undefended base. Fortunately because I keep my 2 star wolves and boar together they were able to defend themselves admirably, and only about a dozen tamed animals died. Having an invasion occur during sleep can only happen if the invasion occurs while one's character is in the cut-scene period as it begins to lie down before the screen goes black, so it is an extremely rare anomaly.

I have both setups.. easy if you think about it.. i have a remote breeder base and a breeder base at main... [note:] wolves and boars breeding next to each other in a "drop" farm causes wolves to angle toward boars and then not eat... placing extra walls between them helps the LOS issue... or seperate the breeder boxes by more meters

Wolves can be bred in a designated facility then transported to a base. Obviously if it's a remote base that requires boat travel the Noah's ark rules apply and you'd only want to take take 2.

As a side note, and you may already know this , but having hungry wolves follow you , then be fed leads to the highest chance of (multiple) offspring as it forces them to be in proximity.

Once you have wolves at the desired locations it's actually best to have them free roam the base and it's property (especially so when in sufficient numbers).

If you take a pack of 10 or so wolves out hunting around your base they will eventually breed. These newborn wolves will not be able to "follow" but they will likely grow to maturity. Eventually you get a mass of self feeding , self breeding wolves that police the grounds.

No need to keep them captive when you have numbers spread out. Security , and resilience to base attack elimination.