used was a focus interview (Yin, 2003), in which the interview consists of open-ended
questions and a set of questions in the form of a questionnaire.
The expert sources of this research were:
. The veterinarians and technicians of two industrial slaughterhouses located in
Isfahan: The slaughterhouses were involved in slaughtering live stocks (sheep,
cattle and camels) along with chickens.
. Veterinarians and technicians of two cold rooms located in Isfahan: In these cold
rooms various kinds of livestock carcasses are stored.
. The engineers and planners in four meat products factories located in Isfahan.
. The major sellers and distributors of meat products factory: The meat products
factories have usually representatives in large towns.
A