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.
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Contributors
Publisher
American Fisheries Society
Date Issued
2001
Note
Language
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Form
Extent
8 p.
Subject (Topical)
Identifier
FA00007276
Additional Information
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
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
Date Backup
2001
Date Text
2001
DOI
10.1577/1548-8454(2001)063<0038:TCBLDM>2.0.CO;2
Date Issued (EDTF)
2001
Extension
FAU
FAU
IID
FA00007276
Organizations
Attributed name: Harbor Branch Oceanographic Institute
Person Preferred Name
Tucker, John W., Jr.
Physical Description
application/pdf
8 p.
Title Plain
The correlation between liver dry matter and liver lipid in cultured juvenile red drum fed various diets
Origin Information
2001
American Fisheries Society
Bethesda, MD
Place
Bethesda, MD
Title
The correlation between liver dry matter and liver lipid in cultured juvenile red drum fed various diets
Other Title Info
The correlation between liver dry matter and liver lipid in cultured juvenile red drum fed various diets