1 材料与方法
1.1 试验材料
表1 试验饲料营养水平(风干基础)Table 1 Nutrient levels of the experimental diet (air-dry basis) |
| 项目 Item | 粗蛋白质 Crude protein | 粗脂肪 Crude lipid | 粗灰分 Crude ash | 水分 Moisture |
|---|---|---|---|---|
| 含量Content | 44.83 | 9.20 | 12.70 | 7.40 |
1.2 试验设计和养殖管理
1.3 样品采集
1.4 指标测定
1.4.1 生长和饲料利用指标
1.4.2 形体指标
1.4.3 体成分
1.4.4 生化指标
1.5 数据处理
2 结果
2.1 饥饿-再投喂对黄斑蓝子鱼生长和饲料利用指标的影响
表2 饥饿-再投喂对黄斑蓝子鱼生长和饲料利用指标的影响Table 2 Effects of starvation-refeeding on growth and feed utilization indices of Siganus oramin |
| 项目 Items | 初始体重 IBW/g | 中途体重 MBW/g | 失重率 WLR/% | 终末体重 FBW/g | 增重率 WGR/% | 特定 生长率 SGR/(%/d) | 摄食率 FR/% | 饲料转 化效率 FCE/% | 蛋白质 效率 PER/% | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| F0组 Group F0 | 20.22 ±0.82 | 20.22 ±0.82a | 61.39 ±4.50b | 203.62 ±15.42b | 2.78 ±0.08c | 4.58 ±0.01d | 55.25 ±2.32c | 1.23 ±0.01c | |||||||||
| F5组 Group F5 | 19.92 ±0.70 | 19.67 ±1.72a | 1.25 ±0.68c | 75.20 ±8.67a | 277.44 ±12.65a | 3.83 ±0.23b | 5.03 ±0.06c | 66.66 ±3.22ab | 1.48 ±0.03ab | ||||||||
| F10组 Group F10 | 20.04 ±0.74 | 17.59 ±4.43b | 12.24 ±0.45b | 60.01 ±6.84b | 199.44 ±8.87b | 4.09 ±0.15a | 5.40 ±0.12bc | 67.57 ±1.63a | 1.50 ±0.01a | ||||||||
| F15组 Group F15 | 20.05 ±0.44 | 17.35 ±2.92b | 13.44 ±0.35b | 45.10 ±4.84c | 124.99 ±10.45c | 3.82 ±0.05b | 5.74 ±0.03ab | 62.11 ±2.06b | 1.38 ±0.07b | ||||||||
| F20组 Group F20 | 20.18 ±0.95 | 16.77 ±1.57c | 16.90 ±0.32a | 34.90 ±1.02d | 72.92 ±6.29d | 3.66 ±0.22b | 6.14 ±0.08a | 57.14 ±1.83c | 1.28 ±0.03c | ||||||||
同列数据肩标不同小写字母表示差异显著(P<0.05),相同或无字母表示差异不显著(P>0.05)。下表同。 | |
In the same column, values with different small letter superscripts mean significant difference (P<0.05), while with the same or no letter superscripts mean no significant difference (P>0.05). The same as below. |
2.2 饥饿-再投喂对黄斑蓝子鱼形体指标的影响
表3 饥饿-再投喂对黄斑蓝子鱼形体指标的影响Table 3 Effects of starvation-refeeding on morphometric indices of Siganus oramin |
| 项目 Items | 饥饿结束End of starvation | 投喂结束End of feeding | |||||
|---|---|---|---|---|---|---|---|
| 脏体指数 VSI/% | 肝体指数 HSI/% | 肥满度 CF/(g/cm3) | 脏体指数 VSI/% | 肝体指数 HSI/% | 肥满度 CF/(g/cm3) | ||
| F0组Group F0 | 10.72±0.58 | 1.69±0.38a | 1.98±0.07a | 13.48±0.61 | 2.96±0.78ab | 2.14±0.10b | |
| F5组Group F5 | 10.22±0.34 | 1.20±0.38b | 1.87±0.09ab | 13.75±0.35 | 3.93±0.15a | 2.55±0.19a | |
| F10组Group F10 | 9.70±1.10 | 0.93±0.05b | 1.85±0.12ab | 13.20±1.52 | 3.11±0.76ab | 2.22±0.08b | |
| F15组Group F15 | 8.38±0.38 | 0.97±0.12b | 1.82±0.09ab | 12.97±0.84 | 2.84±0.96ab | 2.27±0.03b | |
| F20组Group F20 | 9.01±1.69 | 0.93±0.21b | 1.64±0.20b | 11.72±1.02 | 2.35±0.38b | 2.10±0.15b | |
2.3 饥饿-再投喂对黄斑蓝子鱼体成分的影响
表4 饥饿-再投喂对黄斑蓝子鱼体成分的影响(湿重基础)Table 4 Effects of starvation-refeeding on body composition of Siganus oramin (wet weight basis) |
| 项目 Items | 饥饿结束End of starvation | 投喂结束End of feeding | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 粗蛋白质 Crude protein | 粗脂肪 Crude lipid | 水分 Moisture | 粗灰分 Crude ash | 粗蛋白质 Crude protein | 粗脂肪 Crude lipid | 水分 Moisture | 粗灰分 Crude ash | ||
| F0组 Group F0 | 17.12±0.13a | 5.06±0.12a | 72.10±0.78b | 4.20±0.03 | 21.35±0.15 | 6.96±0.12b | 67.80±1.22ab | 2.75±0.12 | |
| F5组 Group F5 | 17.66±0.65a | 4.97±0.13a | 73.50±1.23ab | 4.21±0.03 | 21.20±0.13 | 9.60±0.11a | 65.70±1.00b | 2.54±0.35 | |
| F10组 Group F10 | 17.19±0.03a | 3.90±0.54b | 73.80±0.34ab | 4.32±0.22 | 21.57±0.06 | 6.57±0.14b | 67.80±1.45ab | 2.51±0.16 | |
| F15组 Group F15 | 17.07±0.12a | 3.78±0.02b | 73.90±1.02ab | 4.32±0.16 | 23.32±0.26 | 4.57±0.12c | 68.70±0.98ab | 2.79±0.12 | |
| F20组 Group F20 | 16.09±0.35b | 2.66±0.82c | 75.40±0.45a | 4.97±1.06 | 21.64±0.13 | 4.67±0.10c | 69.90±2.33a | 3.04±0.23 | |
2.4 饥饿-再投喂对黄斑蓝子鱼糖原含量的影响
表5 饥饿-再投喂对黄斑蓝子鱼糖原含量的影响Table 5 Effects of starvation-refeeding on glycogen contents of Siganus oramin |
| 组别 Groups | 饥饿结束End of starvation | 投喂结束End of feeding | |||
|---|---|---|---|---|---|
| 肝糖原 Liver glycogen | 肌糖原 Muscle glycogen | 肝糖原 Liver glycogen | 肌糖原 Muscle glycogen | ||
| F0组Group F0 | 12.49±2.12a | 0.68±0.12ab | 38.66±4.29 | 0.63±0.13b | |
| F5组Group F5 | 2.33±0.66b | 0.82±0.06a | 32.23±6.70 | 0.61±0.09b | |
| F10组Group F10 | 3.02±0.61b | 0.51±0.06b | 29.04±4.19 | 0.65±0.08b | |
| F15组Group F15 | 3.51±0.79b | 0.63±0.10ab | 36.75±6.48 | 0.79±0.02ab | |
| F20组Group F20 | 3.05±0.27b | 0.48±0.10b | 43.14±7.34 | 0.95±0.15a | |
2.5 饥饿-再投喂对黄斑蓝子鱼肠道消化酶活性的影响
表6 饥饿-再投喂对黄斑蓝子鱼肠道消化酶活性的影响Table 6 Effects of starvation-refeeding on intestinal digestive enzyme activities of Siganus oramin |
| 项目 Items | 饥饿结束End of starvation | 投喂结束End of feeding | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 胃蛋白酶 Pepsin/ (U/mg) | 胰蛋白酶 Trypsin/ (U/mg) | 脂肪酶 Lipase/ (U/g) | 淀粉酶 Amylase/ (U/mg) | 胃蛋白酶 Pepsin/ (U/mg) | 胰蛋白酶 Trypsin/ (U/mg) | 脂肪酶 Lipase/ (U/g) | 淀粉酶 Amylase/ (U/mg) | ||||||||||
| F0组 Group F0 | 4.67 ±1.49b | 17 520.46 ±2 460.46ab | 3.76 ±0.66b | 24.48 ±5.33a | 6.78 ±2.09 | 16 494.99 ±1 677.80 | 5.19 ±0.96a | 31.06 ±4.71b | |||||||||
| F5组 Group F5 | 3.18 ±1.39b | 10 306.79 ±3 054.59b | 5.70 ±0.78a | 19.11 ±4.42ab | 7.10 ±1.54 | 17 877.25 ±488.75 | 4.75 ±0.39a | 34.10 ±4.77b | |||||||||
| F10组 Group F10 | 5.73 ±1.10b | 14 513.70 ±1 797.97ab | 5.17 ±0.43a | 20.29 ±3.98ab | 10.44 ±2.41 | 19 446.02 ±848.57 | 5.01 ±1.09a | 42.63 ±6.13a | |||||||||
| F15组 Group F15 | 8.71 ±1.13a | 23 984.21 ±2 491.17a | 5.67 ±0.46a | 18.25 ±0.95ab | 9.88 ±1.44 | 20 281.27 ±2 518.68 | 3.39 ±0.86b | 48.16 ±6.00a | |||||||||
| F20组 Group F20 | 4.36 ±0.86b | 17 633.90 ±4 299.96ab | 3.97 ±0.69b | 11.95 ±1.45b | 6.11 ±1.69 | 18 863.90 ±3 844.78 | 4.09 ±0.17ab | 46.24 ±7.81a | |||||||||

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