Table 5. Growth performance, feed utilization and morphologic index of large yellow croaker fed diets containing different lipid sources.
| Dietary lipid sources | Initial weight (g) | WG (%)1 | SGR(%day-1)2 | Survival (%)3 | Feed intake4 | FE5 | PER6 | HSI (%)7 | VSI(%)8 | CF(gcm-3)9 |
|---|---|---|---|---|---|---|---|---|---|---|
| FO | 13.78±0.01 | 189.95±5.83b | 1.97±0.04 b | 96.00±4.00 | 0.62±0.02 | 0.58±0.07 | 1.31±0.16 | 1.55±0.23 | 3.03±0.20 | 1.84±0.05 |
| SO | 13.78±0.04 | 193.97±3.87b | 2.00±0.03b | 94.67±6.11 | 0.63±0.01 | 0.59±0.08 | 1.39±0.10 | 1.75±0.24 | 3.27±0.50 | 1.71±0.06 |
| LO | 13.77±0.02 | 181.60±6.86a | 1.92±0.04a | 98.00±3.46 | 0.61±0.02 | 0.55±0.04 | 1.29±0.04 | 1.41±0.10 | 2.78±0.42 | 1.69±0.07 |
| RO | 13.82±0.07 | 181.46±3.70a | 1.92±0.02 a | 97.33±4.62 | 0.60±0.081 | 0.52±0.10 | 1.23±0.10 | 1.64±0.08 | 3.57±0.04 | 1.72±0.14 |
| PO | 13.78±0.04 | 192.91±4.89b | 1.99±0.03b | 98.00±3.46 | 0.64±0.05 | 0.62±0.04 | 1.38±0.08 | 1.57±0.16 | 3.01±0.31 | 1.85±0.09 |
| ANOVA P-value | 0.689 | 0.031 | 0.036 | 0.86 | 0.75 | 0.517 | 0.377 | 0.244 | 0.129 | 0.11 |
Values are represented as the means of three replicates. Means in the same column with different superscripts are significantly different (P < 0.05).
FO: fish oil; SO: soybean oil; LO: linseed oil; RO: rapeseed oil; PO: peanut oil
1Weight gain (WG, %) = 100× (Wt− Wi)/ Wi
2Specific growth ratio (SGR, % day-1) = 100 × (Ln Wt−Ln Wi) / t
3Survival (%) = 100 ×(final number of fish) / (initial number of fish)
4Feed intake (g day-1) = feed consumption (g)/(days × (final body weight + initial body weight)/2)
5Feed efficiency (FE) = weight gain (g, wet weight) / feed consumed (g, dry weight)
6Protein efficiency ratio (PER) = weight gain (g, wet weight) / protein intake (g, dry weight)
7Hepatosomatic index (HSI,%) = 100 × liver wet weight (g)/body wet weight (g)
8Viscerosomatic index (VSI,%) = 100 × viscerosomatic weight (g) / body wet weight (g)
9Condition factor (CF,g·cm-3) = 100 ×body wet weight (g) / body length (cm)3