Currently the model I am using is as follows (all pen and paper)

1. Expenses Book – here I track all expense on the farm whether operational or capital expenditure.

2. Sales book – sales of eggs to clients which is balanced every Sunday to track Profit and Loss todate

3. Farm journal – for each flock track the water usage, feed given, medication given and any other occurences on the farm. Also for laying birds how many eggs are picked at each point in time. This enables the tracking of laying trends

4. Daily Production Log: total of eggs laid for each flock for each day

The plan is to move this records into Quick books to build a proper P&L but for now this works for us

What do you use, and what works for you?