In Morrison's supermarket in Ft. William this morning goats milk was £1.55p a litre so if we had wanted to consume the equivalent amount in supermarket milk it would have cost £1,085 in total. there have been production costs of course at about 0.75 kg concentrates per litre costing around 45p, then 2kg hay a day at about 25p/kg; total food cost is £1.70p.
Average daily output 2.5kg milk @ £1.55/litre is worth £3.88p
Average daily food costs @ £1.70p /day
Average daily surplus over feed cost £2.18p
Total surplus for 300 days £654
"But what about the other production costs and overheads" I hear you cry.........
Well..... I'm retired so the opportunity cost of my labour is zero, vet fees and medicines might have been another £40 at most, bedding £40 and miscellaneous costs £10. That still eaves a surplus of £600.
You are now very welcome to pick holes in these figures but I think that I can now make a good case for backyard goat farming to keep two or three families in high quality milk and dairy products more cheaply than buying the equivalent from a supermarket.
Of course you'd need two goats ( you can't keep one on its own) a garden, a loose box with a yard and friendly cooperative neighbours who want to be part of your neighborhood backyard milk production coop because you do need some time off from feeding, milking, mucking out etc.