I have been reading on the Internet to determine how much feed each animal needs, and I do not think I would need a lot of land.
Laying hens eat about a 1/4 pound of feed per day. 12 chickens would need 3 pounds a day. For 365 days, that would be 1,095 pounds of feed. I would also allow them to free range, so they would not need that much feed.
It takes about six months and about 500 pounds of feed to get a pig ready to butcher. Again, I would be feeding them scraps from the garden and milk from the cow, so that amount of feed would not be needed.
A milk cow like a Jersey would eat about 25 pounds of feed per day. The cow would be grazing during the warm months. So I figure I need to feed the cow for about 150 days during the colder part of the year. 150 days times 25 pounds equals 3,750 pounds of feed needed. That is 37.5 bales of alfalfa, if a bale weighs 100 pounds. The bales can be purchased at $10 each, which would be $370 for 37 bales.
One acre can produce from 50 bales per cutting or more, depending on rainfall. So let's say 50 bales per acre in one cutting. I think it would be easiest to get a neighbor to bale the hay and give the person half the hay, or pay a service to cut the alfalfa at about $3 a bale. Then you could sell part of the alfalfa to pay for the hay baling service. So, one acre of alfalfa would easily provide the winter feed for a cow.
Cows will also eat the corn stalks and leaves after the corn has been harvested. On average, an acre of corn produces about 8,000 pounds of corn kernels. So, that is much more than I would need.
I think one acre of alfalfa and maybe a 1/4 acre of corn (2,000 pounds of corn) would provide most of the feed needed. I would also have a few acres for the cow and a calf to graze, plus they can eat the corn stalks and leaves.
So I am thinking that my guess about 5 acres would work to produce all the feed needed for a few animals.
One interesting thing I was reading by a gardener said that you do not even need to take the corn kernels off the cob. Just throw the cobs to chickens or pigs, and they will eat the corn off the cob.
So, I think I could get by with a rototiller and a walk-behind corn seed planter, but it would be nice to have a little tractor with a cultivator and a seed planter. I was thinking a little tractor like this would be nice.
http://dallas.craigslist.org/dal/grd/4022752834.html
A lot of food can be produced on a small amount of land.