Prince Charles met leading Welsh business people on the final day of his summer tour of Wales - as well as hundreds of maggots.
The Prince meets Steve Jones and his shire horse Basie during a visit to Pembrokeshire.
The Prince was shown the maggots, which are used in the treatment of wounds, at a reception in a Cardiff hotel.
Later, he was introduced to creatures of a four-legged variety at a countryside centre in Pembrokeshire.
The Prince met winners of the Queen's Award for Enterprise as part of a UK-wide royal theme day in celebration of business enterprise.
The third day of the prince's Welsh visit started with a business reception in Cardiff, where he was introduced to the staff of the Biosurgical Research Unit, part of Bro Morgannwg NHS Trust.
Director Dr Steve Thomas showed the prince a phial of about 300 maggots.
The unit produces and distributes sterile maggots for the treatment of infected wounds and wounds which contain dead tissue.
Dr Thomas said they were effective even against antibiotic-resistant bacteria such as MRSA.
"The Prince was interested in them," said Dr Thomas.
"He was asking us how they came to be used, how they worked, how the business was developed and so on."
Winning the Queen's Award for Enterprise in 2001 had raised the profile of maggot treatment, he said.
Dr Thomas was among 100 representatives of award-winning firms at the St David's Hotel and Spa, in Cardiff Bay.
The Prince of Wales, wearing a University of Wales tie, was introduced to representatives of 18 companies.
They included pupils from Stanwell Comprehensive School in Penarth, south Wales, who set up a Young Enterprise business making a computer program designed to aid learning.
The Prince was praised for his understanding of nature as he later
toured an organic farm helping to pioneer sustainable techniques.
He flew into the Clynfyw Countryside Centre, near Newcastle Emlyn, to meet farmer James Lewis-Bowen, 36, who is one of this year's Queen's Award for
'Getting hands dirty'
He was given a thorough two-hour tour of the Soil Association demonstration farm which included visiting a sprawling piggery, viewing Welsh
black cattle, touring farm buildings used for holiday lets, and a charcoal-making demonstration.
He also met woodsman Steve Jones who uses a shire horse, called Besie, in traditional woodland management.
"He is someone who knows and understands what is going on in the countryside
and in a place like this," Mr Jones said.
"If he was not in the position he is I could easily imagine him down on the land making charcoal and getting his hands dirty.
"I have got a lot of time for the Prince. He generally gets things right in my opinion.
"He knows about the countryside and he says things that others shy away from
Later the Prince presented Mr Lewis-Bowen with his award and spoke of the
importance of demonstrating sustainable farming techniques to others.
He praised the efforts of the prize-winning farmer and said they played a more important role than the "endless boring speeches" that he made.