Pigs, Carcass grading, Ultrasonic fat meters
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THE ultrasonic tester was originally developed as a metal flaw-detector for industrial purposes, and its usefulness for making carcass measurements on the live pig was first demonstrated about 10 years ago.
Goss, B M.
"Ultrasonic testing : an aid to better breeding,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 10:
9, Article 7.
Available at: https://library.dpird.wa.gov.au/journal_agriculture4/vol10/iss9/7