Livestock
Convert grass you cannot eat into food, fibre, fertiliser and power.
Everything for this step
- Field guide
- Livestock husbandry → 6 sections Fibre to cloth → 6 sections Biology → 19 sections
- Builds
- None yet.
- Reference sheets
- 2 sheets in Fibre to cloth
- Sciences it rests on
- Agricultural science · Genetics
- Track
- Livestock, level 1 of 1
Why this matters
Animals do four jobs at once: they eat plants humans cannot digest, they concentrate fertility into manure, they store food on the hoof through winter, and they pull. The draft animal in particular is the largest single increase in available power before the water wheel.
The shape of it
- Start small and go up. Chickens (fast, low risk, eggs), then goats or sheep (milk, wool, meat, browse marginal land), then pigs (convert waste, high yield, no other products), then cattle or buffalo (milk, meat, and crucially draft).
- Winter fodder is the constraint, not summer grazing. Every animal you keep through winter must be fed from what you cut in summer. Hay, roots and straw must be laid in before you decide the herd size — historically most societies slaughtered down in autumn for exactly this reason.
- Fence properly — see Fences, Gates and Bridges. Animals in the crop is a total loss of both.
- Manure is a product, not a waste. Collect it, compost it with bedding, apply it. This is the fertility loop that makes field rotation work.
- Breed females, eat males. Keep the best male only. A herd rebuilds through its females; killing them for meat is spending capital.
- Draft training takes months. Yoke, harness and cart are their own crafts — see Diseases of the Horse and the harness sections. A trained ox pair does the work of ten people ploughing.
- Keep sick animals apart, and never bring an unknown animal straight into the herd. Watch water sources shared with people — livestock waste in drinking water is a primary route back to waterborne disease.
Doing it, step by step
The summary above says what has to happen. This says how, with the numbers that decide whether it works.
1 · Start small and work up
In order of risk and of what they return:
- Chickens — fast, cheap, low risk. Eggs, meat, pest control, manure. A flock recovers from a disaster in a season.
- Goats or sheep — milk, meat, wool, hides, and they browse ground that grows nothing else.
- Pigs — convert waste and forage into a great deal of meat and fat, and give nothing until slaughter.
- Cattle — milk, traction and the largest manure flow, and the largest winter fodder bill and the greatest risk to the handler.
Each step up multiplies the fodder required and the consequences of getting it wrong. Prove you can carry one level through a winter before taking the next.
2 · Size the herd from the winter fodder, not the summer grass
Grass does not grow in winter and animals eat anyway. The herd is limited by what you can cut and store, and more herds have been lost to a short hay harvest than to disease.
Ruminants eat about 2.5–3% of body weight in dry matter daily. A 550 kg cow needs roughly 16 kg of hay a day — about 2.5–3 tonnes across a 180-day winter. A sheep needs about 1.5–2 kg a day, near 300 kg for the winter. A good meadow cuts 4–6 tonnes per hectare, so each cow needs about half a hectare of hay ground that cannot be grazed while it grows.
Do this arithmetic before the herd grows, and cut the number to what the arithmetic allows.
3 · Make hay properly, and watch the stack
Cut when the grass is flowering, before it seeds — feeding value falls sharply once seed sets. Dry to below about 20% moisture before stacking, turning it to dry evenly.
Damp hay is dangerous, not merely wasteful. A stack made wet heats by microbial action and can reach ignition — barn fires from new hay are a recurring cause of total loss, weeks after stacking. Push an arm deep into the stack for the first fortnight: if it is hot, pull it apart and re-dry it.
Stack on a raised, drained base, shed the rain off the top, and leave the sides open enough to breathe.
4 · Cull before winter, not during it
Every animal kept through winter eats stored fodder whether or not it will ever repay it. In autumn, decide and act: the old, the barren, the injured and the surplus males are slaughtered while they are fat and while there is cool weather to preserve the meat.
This is also when the meat is worth most — animals are in condition after the summer — and when preservation is easiest. A group that postpones the decision feeds those animals for months and then loses better ones in February.
5 · Water and shelter: dry beats warm
Water is the constraint people forget: a cow drinks 50–100 litres a day, more when lactating; sheep and goats 4–10; pigs 10–20; a chicken about 0.25–0.5. Break ice twice a day in winter — an animal that cannot drink stops eating.
Shelter: healthy stock tolerate cold once they have a winter coat. What they do not tolerate is wet and wind together, or a closed humid barn where ammonia builds up and pneumonia spreads. Give a windbreak, a dry lying area and ventilation high up, and keep the bedding dry rather than thick.
6 · Fence properly, and keep animals out of the drinking water
Animals in the crop is a total loss of both — the crop is eaten and the animals gorge and bloat. Build fences before the herd grows, not after the first escape.
And keep livestock out of the water the group drinks. Stock watering downstream of the collection point, or from a trough filled by hand, is one of the highest-value rules on this page: livestock waste in drinking water undoes the entire sanitation effort in a week, and it is how Cryptosporidium, Giardia and E. coli O157 reach people.
7 · Breed females, eat males — and keep the records
A herd rebuilds through its females. Keep the best male only; eat, trade or castrate the rest. Slaughtering breeding females in a hard autumn is spending the capital to pay the interest, and the herd takes years to recover.
Keep a written record of who is whose offspring. In a small closed herd, inbreeding arrives within a few generations — weaker young, poorer fertility — and the fix is to swap a male with a neighbouring group every second or third generation, which is only possible if the records exist.
Gestation, for planning: cattle 283 days, sheep 147, goats 150, pigs 115, horses 340; chicken eggs hatch in 21 days.
8 · Quarantine every new animal, and know the diseases that cross to people
Never bring an unknown animal straight into the herd. Keep it separate for at least three to four weeks, watching for cough, scour, lameness and skin disease. One bought animal takes out a herd.
The diseases that reach people, and the single barrier for each: brucellosis from raw milk — boil it, or hold it at 72 °C for 15 seconds; anthrax from an animal found suddenly dead — do not open the carcass, burn or bury it deep; hydatid disease from dogs fed raw offal — never feed raw offal to dogs; rabies from any bite — wash the wound for 15 minutes immediately; trichinella from undercooked pork — cook to 71 °C. The livestock guide carries the full table.
Pregnant women stay away from lambing and kidding entirely.