The correlation between liver dry matter and liver lipid in cultured juvenile red drum fed various diets

• Other Authors: Tucker, John W., Jr., Lellis, W. A., Vermeer, Gregory K., Harbor Branch Oceanographic Institute
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Fisheries Society
• Subjects: Red drum; Sciaenops ocellatus; Liver; Lipids; Fishes > Feeding and feeds
• Online Access: http://purl.flvc.org/fau/fd/FA00007276; https://doi.org/10.1577/1548-8454(2001)063<0038:TCBLDM>2.0.CO;2; https://fau.digital.flvc.org/islandora/object/fau%3A32900/datastream/TN/view/The%20correlation%20between%20liver%20dry%20matter%20and%20liver%20lipid%20in%20cultured%20juvenile%20red%20drum%20fed%20various%20diets.jpg

Reared juvenile red drum Sciaenops ocellatus were used in a series of seven experiments and four trials testing the effects of 6 commercial and 15 experimental feeds on liver lipid content. Feed composition ranges (dry basis) were 49–62% protein, 5–18% lipid (including 0.5–14% fish oil), 7–18% ash, and 5–22% moisture. Temperature range was 15–32°C and salinity range 15–35‰. Fish weight was 0.4–1,582 g and total length 36–512 mm. Neither hepatosomatic index nor lipid droplet area (measured by image analysis) could be used to predict liver lipid content. However, a strong multiple correlation (R 2 = 0.86) did exist between wet liver lipid (WLL) and liver dry matter (LDM), the regression being WLL = −57.325 + 8.1944(LDM) − 0.38069(LDM)2 + 0.0076865(LDM)3 − 0.000052782(LDM)4. This result suggests that, in some cases, liver dry matter could be used to estimate liver lipid content for cultured red drum without the cost, labor, and hazardous chemicals associated with traditional solvent extraction methods. Florida Atlantic University. Harbor Branch Oceanographic Institute contribution #1349 This manuscript is an author version with the final publication available and may be cited as: Tucker, J. W., Jr., Lellis, W. A., & Vermeer, G. K. (2001). The correlation between liver dry matter and liver lipid in cultured juvenile red drum fed various diets. North American Journal of Aquaculture, 63(1), 38-44. doi:10.1577/1548- 8454(2001)063<0038:TCBLDM>2.0.CO;2