The area of intramuscular fat in Holstein steer longissimus was determined using an image analyzing system. Slaughter weights of 500, 636 and 773 kg differed (p < 0.05) for intramuscular fat area, marbling score, and ether extractable lipid . Repeated measurements of intramuscular fat area in a given section showed high accuracy . However, comparing two sections from the same sample, there was often a large difference in fat content between the sections. Fat content determined by the imaging system was correlated significantl y with marbling score (r = 0.49) and ether extractable lipid (r = 0.34). Sampling is critical, and in order to obtain a high correlation several samples would be required from each muscle.
Ishii, T.; Cassens, R. G.; Scheller, K. K.; Arp, S. C.; and Schaefer, D. M.
"Image Analysis to Determine Intramuscular Fat in Muscle,"
1, Article 6.
Available at: http://digitalcommons.usu.edu/foodmicrostructure/vol11/iss1/6