hope you're feeling better Ema.
We're kinda doing the same. We started out gardening and canning all our veggies. Next came chickens (we picked a dual purpose bird suited for our weather and willingness to brood, plus they're very tasty!!)
We have 10 Salmon Faverolles and about 20 chicks they produced in the fall. More than half are roosters and they'll be processed. The young hens will stay and I'll cull a couple non productive hens.
Next came rabbits. We purchased New Zeeland and Californians off craigslist (great place to look for supplies and animals cheap!). We have 10 breeding rabbits and 9 kits born Jan 2nd. We just processed 6 bunnies that came with the other rabbits. Rabbits are a great readily renewing meat supply, we figure we'd have to sell 4 rabbits a month to pay for their own food. Plus their poops can go straight to the garden, other critter poops need to age a little. To process, we use a board with a slat cut in it, attached to rafters in the garage and with a quick tug, the rabbit is done, with little stress. The first couple can be disturbing because their nerves and muscles go a bit haywire, but they are defiantly dead.
We're considering pigs next.... but I'd like to get a dairy animal of sorts. Goat or Yak or small jersey cow.
With that 50 acres you should consider taking up some hunting. Here in the states I can get a couple deer and other critters to fill the freezer pretty cheap. We can all our meat and veggies so there is no cost to store on a shelf.
I think some costs for raising animals can be offset with raising your own veggies too, this way you don't spend the money there... it helps to even it out.
Also for chickens, in Canada, your winters will put a kabosh on your hens laying the same number of eggs every day. I have 8 hens, and only get 2-4 eggs a day during winter. Granted I don't leave a light on for them, but that's also more money. You could put a solar panel up to power lights for the coop, but they're not cheap either or I'd have them! LOL!