Cull doesn't always mean to kill, it sometimes means to simply remove them from the gene pool, so you won't be breeding them anymore. But a lot of rabbitry owners will butcher rabbits that are no longer of use to them, and they can then eat them or sell their meat.
When breeding you will have to be prepared for still births, babies that don't make it, bad mothers that could end up killing them, does trying to castrate bucks, etc. Breeding rabbits is not for the faint of heart. Are you sure you are ready for all of this? I would keep rabbits as pets for a while until you are 100% sure you want to breed. Get to know some people who breed rabbits, and watch lots of YouTube videos. For now, I would watch Lennon the Bunny (on YouTube). She makes pet rabbit care videos.
Anyways, here is what you'll need for them:
They will need unlimited Alfalfa hay and alfalfa pellets until they 6 months old. Then you should switch to Timothy hay and 1/4 a cup of (timothy) pellets. They should always have access to fresh hay. Hay is a key part of their diet, and it helps to wear down their teeth. The small hay racks they sell at pet stores are not big enough. Large hay boxes (which you can buy on
amazon and many online pet companies) work much better. Many people provide the bulk of their hay in their litter box, but I prefer to provide fresh hay from another supply.
They will also need a water bowl with clean fresh water at all times. Don't bother with the water bottles. Rabbits need as much water as a large dog, and the nozzles do not let enough water through to keep them hydrated. The nozzles will also be very hard to clean (a lot of people don't even clean them) and bacteria will get caught in there, which is very unsanitary and unsafe for your rabbits. Not to mention the award and unnatural angle they will have to turn to get it.
They will need plenty of toys too. Rabbits are very smart and playful, and since their teeth are constantly growing they need something to chew on. You can make DIY toys with paper bags, cardboard, a paper towel tubes. I have made tons of these, so I can show you how if you'd like.
I also suggest litter training them. While this is much easier to do with fixed rabbits, it can still be done when they are intact. You'll need a large cat sized litter box. Don't bother with the corner pans, they are much too small and your rabbits won't use them well. Under the bed storage tubs work well. Don't use cat litter, as it have clay which can be fatal if ingested. You can use paper based bedding, the same stuff that is often used for hamster and rabbits bedding. Don't bother with using this all over the hutch though, or the rabbits will use it as a litter box and you'll waste a lot of money.
Once you have a good layer of litter, you'll want to fill up the rest with lots of hay (while still leaving enough space for your rabbit to turn all the way around in).
Something to be aware of, is that once rabbits reach sexual maturity (3-6 months) they will often become quite aggressive and very territorial. Their litter habits will worsen and (males especially) will start to mark everywhere. They will also start to stink. They'll go from a sweet, cuddly baby, to a chaotic and moody teen. Once they are a bit older their hormones will level out. Getting them fixed will fix any lingering issues. This is typically done around 6 months of age.
I often recommended adopted an already fixed rabbit, or a bonded pair, for new rabbit owners. That way you can skip the whole teenager phase and you won't have to get them fixed yourself. You cannot actually bond two rabbits until they are both fixed. While two intact males can get along fine, it's best that they are fixed. Having two females together (even when fixed) can be quite hard to bond. They are notorious for fighting with each other. While not impossible, they typically will not get along together well. Being siblings will not help them to get along better, weather you have two males, two females, or a male and female.
I suggest you get one rabbit for now. Wait until he/she is 6 months old, and bond it with another rabbit. I would at least have one of them fixed. Neutered males tend to make the best pets, so it may be better for you to get a male first, get him fixed, then bond him with another rabbit. If you still want to breed at this point (after having the males for a while) then get an intact female. Then you can get a buck to breed her with.
Something to consider when keeping rabbits in hutched is that predators can easily kill them. I know a few peoples whos rabbits (who were kept outside in a hutch) were killed by predators and even their own dogs just from being scared. A dog could just be wanting to play, and that alone could give the rabbit a heart attack. Baby rabbits are especially vulnerable to these things. Not to mention the weather (heatstroke is a common cause of death for rabbits), lack of space (most hutches are much to small to provide the space for exercise and enrichment), and how they are farther away from you (a lot of rabbits kept in hutched become aggressive or fearful or their owners due to the lack of bonding and socialization). These are just some things to keep in mind.
For pet rabbits, I will always recommend keeping them indoors. Playpens are much better than the cages since they are cheaper, larger, and have many other uses. It's best that they free roam in a bunny proofed room for 4 hours a day (4 hours being the minimum). This allows them to properly exercise, explore, bond with you, and be much more free. Lennon the Bunny has lots of videos on how to do this, and I have lots of information as well.
A lot of people do not consider this an option because "rabbits smell", or they chew too much, or because they just have not heard of this before. But many people free roam their rabbits and there are plenty of solutions to the common problems that come up when discussing the free roaming of rabbits.
If this sounds like something you would like do, I'd be glad to help. If not then that's fine too, but I hope I helped with your other questions. If there is anything else you would like to know about, chances are I'll know how to help.
