[(E)]

Bit of a tangent but this will make it easier for anyone who is interested to make some broad calculations regarding livestock. I may also refer to it as it makes descriptions easier (faster)

Anyone interested in throwing out ideas regarding the social structures that may develop in these communities? Feel free not my area of expertise.

Measuring livestock
Stock units are the old standard for measuring the amount of animals a pasture system can maintain. Selected and simplified for gaming use.
- 1 lactating ewe equals 1 stock unit.
- other sheep and goats average 0.75 stock units
- Beef cattle average 5 stock units
- Lactating dairy cattle 6-9 stock units
- Deer 1.9 stock units
- Goats 0.8 stock units

Land quality
TL 7 - 8
- Poor fertility hard hill country 2-6 stock units per hectare
- Cold poor fertility hard hill country 1-3 stock units a hectare
- high fertility flat with irrigation 14+ stock units a hectare.
- guesstimate of a managed pasture in AtE with stock and crop rotation 6 stock units per hectare on goodish country.

Medicine and genetics cover
- stock losses, potentially large in warm wet climates
- condition and speed of weight gain.
- reproduction percentages.
- other yields, milk wool etc.

Edit
This is with a "farm" system not a "ranch" system. Reducing the size of the paddocks and increasing the frequency of the stock shifts can improve production by 50% in temperate conditions as tougher (slower growing and harder to digest) grasses become less dominant. This process takes more than a year though but improvements can be seen in as soon as the first hard grazing is recovered from.