However, at least one company is getting it right, Marks and Spencer, who moved into fresh meat in 1972, handled 145,000 NZ lambs last year.

With the aid of genetics in New Zealand, they were able to receive 95,000 of them, at the ideal weight averaging 17.9 Kilos per carcass. The ideal M&S weight is an 18 kilo lamb.

With their labelling system the packets of lamb, identify the farm and farmer giving a brief history of the lambs breeding and fattening conditions. This is pretty well as good as it gets, as far as transparency and traceability goes.

Source: BBC