1 材料与方法
1.1 试验饲料和试验设计
表1 试验饲料组成及营养水平(风干基础)Table 1 Composition and nutrient levels of experimental diets (air-dry basis) g/kg |
| 项目 Items | 试验饲料Experimental diets | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| FM-20 | FM-15 | FM-10 | FM-5 | FM-0 | |||||||
| 原料Ingredients | |||||||||||
| 鱼粉Fish meal | 200.0 | 150.0 | 100.0 | 50.0 | |||||||
| 棉籽浓缩蛋白CPC | 52.0 | 104.0 | 156.2 | 208.0 | |||||||
| 面粉Wheat flour | 285.0 | 269.5 | 253.6 | 237.9 | 222.1 | ||||||
| 其他原料Other ingredients | 505.0 | 505.0 | 505.0 | 505.0 | 505.0 | ||||||
| 鱼油Fish oil | 10.0 | 13.8 | 17.7 | 21.6 | 25.5 | ||||||
| 微囊异亮氨酸Microencapsulated Ile (50%) | 0.9 | 1.9 | 2.8 | 3.8 | |||||||
| 微囊亮氨酸Microencapsulated Leu (50%) | 2.0 | 3.9 | 5.9 | 7.9 | |||||||
| 微囊赖氨酸Microencapsulated Lys (39%) | 3.6 | 7.3 | 10.8 | 14.5 | |||||||
| 微囊蛋氨酸Microencapsulated Met (50%) | 1.2 | 2.4 | 3.6 | 4.8 | |||||||
| 微囊苏氨酸Microencapsulated Thr (50%) | 0.9 | 2.0 | 3.0 | 4.1 | |||||||
| 微囊缬氨酸Microencapsulated Val (50%) | 0.8 | 1.6 | 2.4 | 3.2 | |||||||
| 胆固醇Cholesterol | 0.3 | 0.6 | 0.9 | 1.2 | |||||||
| 合计Total | 1 000.0 | 1 000.0 | 1 000.0 | 1 000.0 | 1 000.0 | ||||||
| 项目 Items | 试验饲料Experimental diets | ||||||||||
| FM-20 | FM-15 | FM-10 | FM-5 | FM-0 | |||||||
| 营养水平(实测值) Nutrient levels (measured values) | |||||||||||
| 水分Moisture | 90.0 | 86.9 | 85.6 | 91.6 | 84.4 | ||||||
| 粗蛋白质CP | 414.1 | 415.3 | 414.6 | 413.9 | 416.1 | ||||||
| 粗脂肪EE | 71.3 | 70.4 | 71.6 | 70.7 | 71.2 | ||||||
| 粗灰分Ash | 76.9 | 74.0 | 69.7 | 65.0 | 61.9 | ||||||
| 游离棉酚Free gossypol/(mg/kg) | 0.2 | 0.8 | 1.6 | 3.3 | 4.7 | ||||||
其他原料包括:150 g/kg豆粕、60 g/kg玉米蛋白粉、50 g/kg大豆浓缩蛋白、50 g/kg肉骨粉、50 g/kg谷朊粉、50 g/kg鱿鱼膏、50 g/kg啤酒酵母、15 g/kg大豆磷脂、20 g/kg磷酸二氢钙、5 g/kg维生素预混料、5 g/kg矿物质预混料。每千克维生素预混料含有:维生素A 1 000 000 IU,维生素D3 500 000 IU,维生素E 10 000 IU,维生素K3 860 mg,维生素B1 2 000 mg,维生素B2 3 000 mg,维生素B6 1 960 mg,维生素B12 50 mg,D-生物素 200 mg,叶酸 380 mg,烟酰胺 5 970 mg,泛酸 4 410 mg,维生素C 30 g,肌醇 40 g,氯化胆碱 100 g。每千克矿物质预混料含有:钾 200 g,铜 4 000 mg,铁 3 000 mg,镁 5 000 mg,锌 7 000 mg,硒 40 mg,碘 430 mg,钴 100 mg。 | |
Other ingredients included: 150 g/kg soybean meal, 60 g/kg corn gluten meal, 50 g/kg soy protein concentrate, 50 g/kg meat bone meal, 50 g/kg corn gluten, 50 g/kg condensed fish soluble, 50 g/kg brewers dried yeast, 15 g/kg soybean lecithin, 20 g/kg monocalcium phosphate, 5 g/kg vitamin premix and 5 g/kg mineral premix. One kilogram of vitamin premix contained the following: VA 100 0000 IU, VD3 500 000 IU, VE 10 000 IU, VK3 860 mg, VB1 2 000 mg, VB2 3 000 mg, VB6 1 960 mg, VB12 50 mg, D-biotin 200 mg, folic acid 380 mg, niacinamide 5 970 mg, pantothenic acid 4 410 mg, VC 30 g, inositol 40 g, choline chloride 100 g. One kilogram of mineral premix contained the following: potassium 200 g, cuprum 4 000 mg, iron 3 000 mg, manganese 5 000 mg, zinc 7 000 mg, selenium 40 mg, iodine 430 mg, cobalt 100 mg. |
表2 棉籽浓缩蛋白、鱼粉以及试验饲料的氨基酸组成(干物质基础)Table 2 Amino acid composition of CPC, fish meal and experimental diets (DM basis) g/kg |
| 氨基酸 Amino acids | 试验饲料Experimental diets | 棉籽浓 缩蛋白 CPC | 鱼粉 Fish meal | ||||
|---|---|---|---|---|---|---|---|
| FM-20 | FM-15 | FM-10 | FM-5 | FM-0 | |||
| 必需氨基酸EAAs | |||||||
| 苏氨酸Thr | 15.6 | 15.8 | 15.3 | 15.1 | 14.9 | 19.0 | 28.7 |
| 蛋氨酸Met | 9.0 | 8.6 | 9.0 | 9.0 | 8.2 | 8.5 | 20.3 |
| 缬氨酸Val | 17.5 | 17.6 | 17.4 | 17.7 | 17.3 | 26.6 | 33.7 |
| 异亮氨酸Ile | 15.9 | 15.6 | 14.8 | 14.6 | 14.1 | 18.9 | 27.5 |
| 亮氨酸Leu | 35.6 | 35.8 | 35.0 | 35.3 | 34.6 | 34.4 | 52.6 |
| 苯丙氨酸Phe | 21.9 | 21.0 | 22.5 | 23.0 | 22.8 | 35.3 | 35.9 |
| 赖氨酸Lys | 20.8 | 18.9 | 19.9 | 19.6 | 18.5 | 24.7 | 52.1 |
| 组氨酸His | 10.6 | 10.0 | 10.2 | 10.3 | 9.1 | 18.0 | 20.7 |
| 精氨酸Arg | 22.5 | 24.3 | 26.2 | 28.0 | 30.0 | 78.9 | 40.9 |
| 非必需氨基酸NEAAs | |||||||
| 天冬氨酸Asp | 33.1 | 33.4 | 32.9 | 32.2 | 32.6 | 56.6 | 61.0 |
| 丝氨酸Ser | 18.7 | 19.0 | 18.6 | 18.5 | 18.4 | 26.5 | 26.1 |
| 谷氨酸Glu | 75.9 | 78.5 | 78.6 | 80.0 | 81.2 | 123.7 | 87.5 |
| 甘氨酸Gly | 19.5 | 19.1 | 18.1 | 17.5 | 16.4 | 25.0 | 41.3 |
| 酪氨酸Tyr | 14.9 | 14.0 | 14.6 | 14.0 | 14.2 | 22.9 | |
| 丙氨酸Ala | 21.4 | 20.7 | 19.3 | 18.5 | 17.2 | 23.6 | 44.2 |
| 半胱氨酸Cys | 3.7 | 3.2 | 4.1 | 3.4 | 4.4 | 9.5 | 4.1 |
| 脯氨酸Pro | 23.8 | 24.3 | 23.1 | 23.7 | 22.5 | 21.7 | 28.4 |
| 总氨基酸TAA | 380.3 | 379.5 | 379.7 | 379.8 | 376.5 | 550.9 | 627.9 |
1.2 试验动物与饲养管理
1.3 样本采集
1.4 测定指标及方法
1.4.1 生长性能和形体指标
1.4.2 饲料、全虾和肌肉常规成分
1.4.3 肌肉持水力、胶原蛋白含量和体色
1.4.4 肌肉质构特性
1.4.5 肌肉氨基酸、游离氨基酸、游离棉酚含量
1.4.6 血淋巴及肌肉生化指标
1.5 数据统计与分析
2 结果
2.1 生长性能和形体指标
表3 棉籽浓缩蛋白替代鱼粉对凡纳滨对虾生长性能和形体指标的影响Table 3 Effects of CPC substituting fish meal on growth performance and body indexes of Pacific white shrimp (Litopenaeus vannamei) |
| 项目 Items | 组别Groups | ||||
|---|---|---|---|---|---|
| FM-20 | FM-15 | FM-10 | FM-5 | FM-0 | |
| 初始均重IAW/g | 1.20±0.05 | 1.20±0.06 | 1.20±0.05 | 1.20±0.05 | 1.20±0.04 |
| 终末均重FAW/g | 12.64±0.57a | 12.42±0.71a | 12.02±0.48ab | 11.11±0.57bc | 10.78±0.76c |
| 存活率SR/% | 96.50±1.91a | 96.50±2.51a | 95.00±3.46ab | 88.50±4.32c | 90.50±4.72bc |
| 采食量FI/(g/尾) | 17.23±0.13a | 16.93±0.38a | 16.64±0.27ab | 16.79±0.72ab | 16.20±0.66b |
| 增重率WGR/% | 953.0±47.4a | 934.7±59.4a | 901.7±40.2ab | 825.8±47.9bc | 798.5±63.0c |
| 饲料系数FCR | 1.48±0.07c | 1.49±0.08c | 1.50±0.07bc | 1.59±0.05ab | 1.61±0.06a |
| 肝体比HSI/% | 4.75±0.29 | 4.75±0.22 | 4.59±0.22 | 4.74±0.19 | 4.65±0.32 |
| 肥满度CF/(g/cm3) | 1.17±0.01 | 1.17±0.03 | 1.14±0.02 | 1.13±0.01 | 1.16±0.02 |
| 出肉率MY/% | 53.31±0.28a | 53.15±0.36a | 51.09±0.63b | 50.98±0.71b | 51.68±0.94b |
同行数据肩标中不含有相同字母表示差异显著(P<0.05)。下表同。 | |
In the same row, value superscripts that did not contain the same alphabet indicated significant difference (P<0.05). The same as below. |
2.2 肌肉质构特性、持水力和体色
表4 棉籽浓缩蛋白替代鱼粉对凡纳滨对虾肌肉质构特性、持水力和体色的影响Table 4 Effects of CPC substituting fish meal on flesh texture characteristics, water-holding capacity and body color of Pacific white shrimp (Litopenaeus vannamei) |
| 项目 Items | 组别Groups | ||||
|---|---|---|---|---|---|
| FM-20 | FM-15 | FM-10 | FM-5 | FM-0 | |
| 质构特性Texture characteristics | |||||
| 硬度Hardness/gf | 331.00±16.53 | 329.33±18.90 | 327.75±26.39 | 357.50±26.60 | 330.67±17.01 |
| 弹性Springness | 0.71±0.03 | 0.70±0.03 | 0.69±0.02 | 0.69±0.03 | 0.69±0.02 |
| 黏聚性Cohesiveness/gf | 0.72±0.01 | 0.71±0.02 | 0.70±0.02 | 0.71±0.01 | 0.71±0.02 |
| 咀嚼性Chewiness/gf | 169.6±9.0 | 163.4±11.0 | 157.2±11.0 | 174.5±16.0 | 172.3±9.5 |
| 剪切力Shear force/gf | 2 033.5±30.8 | 2 023.5±32.9 | 2 158.8±175.4 | 2 160.0±78.7 | 2 059.0±178.3 |
| 持水力Water-holding capacity | |||||
| 蒸失水率Steaming water loss/% | 27.66±1.47 | 29.15±1.13 | 28.76±1.64 | 28.08±0.69 | 29.46±1.62 |
| 煮失水率Cooking water loss/% | 32.01±2.97 | 31.79±1.47 | 31.97±2.36 | 30.33±1.24 | 32.25±0.60 |
| 体色Body color | |||||
| 明亮度L* | 57.14±0.77 | 56.75±1.52 | 56.96±1.12 | 56.21±3.05 | 56.57±2.71 |
| 红绿度a* | 34.07±0.70 | 33.21±2.23 | 32.56±1.41 | 31.61±2.31 | 33.43±0.88 |
| 黄蓝度b* | 41.48±0.86 | 40.62±1.93 | 39.95±2.70 | 39.00±2.03 | 40.92±2.51 |
2.3 全虾和肌肉常规成分、肌肉胶原蛋白和游离棉酚含量
表5 棉籽浓缩蛋白替代鱼粉对全虾和肌肉常规成分、肌肉胶原蛋白和游离棉酚含量的影响(鲜重基础)Table 5 Effects of CPC substituting fish meal on whole-body and flesh routine components, flesh collagen and free gossypol contents of Pacific white shrimp (Litopenaeus vannamei) g/kg |
| 项目 Items | 组别Groups | ||||
|---|---|---|---|---|---|
| FM-20 | FM-15 | FM-10 | FM-5 | FM-0 | |
| 全虾Whole-body | |||||
| 水分Moisture | 751.04±17.36 | 748.58±12.66 | 748.89±10.50 | 756.49±13.63 | 753.70±6.96 |
| 粗蛋白质CP | 179.59±6.54 | 185.94±7.00 | 183.53±5.27 | 174.25±8.29 | 183.35±6.53 |
| 粗脂肪EE | 21.32±1.68 | 21.43±1.25 | 20.90±1.49 | 22.05±1.86 | 20.94±1.71 |
| 粗灰分Ash | 26.41±1.16 | 27.19±2.45 | 26.14±1.70 | 28.04±1.39 | 26.91±1.13 |
| 肌肉Flesh | |||||
| 水分Moisture | 747.37±3.73 | 754.73±7.07 | 745.00±4.23 | 737.80±20.67 | 749.78±9.59 |
| 粗蛋白质CP | 215.05±3.61 | 202.87±3.27 | 216.45±10.25 | 205.50±8.77 | 202.57±4.14 |
| 粗脂肪EE | 9.44±0.45 | 9.91±0.64 | 9.62±0.05 | 10.70±0.09 | 10.40±0.90 |
| 粗灰分Ash | 11.28±0.17 | 11.75±0.35 | 11.39±0.61 | 11.61±0.25 | 11.77±0.66 |
| 总胶原蛋白Total collagen | 4.69±0.12 | 4.85±0.09 | 4.77±0.12 | 4.84±0.15 | 4.95±0.16 |
| 热可溶性胶原蛋白HS collagen | 0.71±0.03 | 0.68±0.02 | 0.79±0.03 | 0.67±0.01 | 0.70±0.03 |
| 热不溶性胶原蛋白HIS collagen | 3.98±0.19 | 4.13±0.17 | 3.98±0.24 | 4.17±0.20 | 4.25±0.28 |
| 游离棉酚 Free gossypol/(mg/kg) | 0.07±0.01 | 0.09±0.01 | 0.09±0.00 | 0.10±0.01 | 0.10±0.03 |
2.4 肌肉氨基酸和游离氨基酸含量
表6 棉籽浓缩蛋白替代鱼粉对凡纳滨对虾肌肉氨基酸含量的影响(干物质基础)Table 6 Effects of CPC substituting fish meal on flesh amino acid contents of Pacific white shrimp (Litopenaeus vannamei) (DM basis) % |
| 氨基酸 Amino acids | 组别Groups | ||||
|---|---|---|---|---|---|
| FM-20 | FM-15 | FM-10 | FM-5 | FM-0 | |
| 必需氨基酸EAAs | |||||
| 苏氨酸Thr | 2.83±0.06 | 2.81±0.04 | 2.84±0.11 | 2.93±0.07 | 3.02±0.05 |
| 缬氨酸Val | 2.84±0.18 | 2.88±0.05 | 2.97±0.16 | 3.10±0.21 | 3.00±0.07 |
| 蛋氨酸Met | 1.77±0.06 | 1.79±0.13 | 1.81±0.07 | 1.80±0.03 | 1.77±0.05 |
| 异亮氨酸Ile | 1.89±0.03b | 2.05±0.13b | 2.16±0.16b | 2.77±0.17a | 3.11±0.04a |
| 亮氨酸Leu | 6.06±0.07 | 5.98±0.03 | 6.05±0.10 | 6.21±0.14 | 6.18±0.02 |
| 苯丙氨酸Phe | 4.09±0.18 | 3.99±0.21 | 3.88±0.14 | 3.85±0.20 | 3.80±0.19 |
| 赖氨酸Lys | 6.42±0.15 | 6.40±0.07 | 6.39±0.17 | 6.47±0.09 | 6.54±0.01 |
| 组氨酸His | 1.68±0.01 | 1.64±0.04 | 1.69±0.04 | 1.73±0.05 | 1.71±0.03 |
| 精氨酸Arg | 6.28±0.17 | 6.04±0.18 | 6.32±0.12 | 6.19±0.01 | 6.28±0.05 |
| 非必需氨基酸NEAAs | |||||
| 天冬氨酸Asp | 8.61±0.11 | 8.80±0.03 | 8.58±0.36 | 8.31±0.19 | 8.43±0.11 |
| 丝氨酸Ser | 3.34±0.04 | 3.30±0.04 | 3.22±0.06 | 3.10±0.21 | 3.14±0.22 |
| 谷氨酸Glu | 12.91±0.19 | 12.62±0.10 | 13.09±0.33 | 12.81±0.06 | 12.89±0.19 |
| 甘氨酸Gly | 5.88±0.18 | 5.79±0.21 | 5.49±0.18 | 5.58±0.32 | 5.53±0.16 |
| 酪氨酸Tyr | 3.29±0.05a | 3.22±0.02a | 3.21±0.10a | 2.92±0.07b | 2.88±0.08b |
| 丙氨酸Ala | 5.16±0.06 | 5.17±0.15 | 4.92±0.10 | 5.04±0.09 | 4.91±0.02 |
| 半胱氨酸Cys | 0.45±0.02 | 0.50±0.03 | 0.46±0.03 | 0.50±0.04 | 0.45±0.02 |
| 脯氨酸Pro | 4.99±0.26 | 4.98±0.08 | 4.99±0.14 | 4.98±0.24 | 5.04±0.30 |
| 总氨基酸TAA | 78.26±1.55 | 78.21±1.24 | 78.09±3.10 | 78.09±0.98 | 78.03±1.02 |
表7 棉籽浓缩蛋白替代鱼粉对凡纳滨对虾肌肉游离氨基酸含量的影响(湿重基础)Table 7 Effects of CPC substituting fish meal on flesh free amino acid contents of Pacific white shrimp (Litopenaeus vannamei) (fresh weight basis) mg/100 g |
| 游离氨基酸 Free amino acids | 组别Groups | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| FM-20 | FM-15 | FM-10 | FM-5 | FM-0 | |||||||
| 天冬氨酸Asp | 5.86±0.21b | 5.68±0.30b | 6.19±0.15ab | 6.50±0.24a | 6.10±0.15ab | ||||||
| 苏氨酸Thr | 162.3±10.3 | 163.6±8.7 | 156.5±5.2 | 156.5±7.0 | 155.4±11.1 | ||||||
| 丝氨酸Ser | 18.70±0.78a | 18.16±0.34a | 17.17±1.21b | 16.75±1.00c | 16.51±0.53c | ||||||
| 谷氨酸Glu | 89.17±2.50 | 83.29±3.08 | 90.07±2.65 | 85.42±4.51 | 87.58±5.26 | ||||||
| 甘氨酸Gly | 391.14±7.32 | 386.53±12.40 | 385.21±15.58 | 388.64±9.85 | 373.44±17.74 | ||||||
| 丙氨酸Ala | 169.91±7.73 | 157.62±5.39 | 165.07±10.14 | 163.09±9.46 | 162.43±4.40 | ||||||
| 半胱氨酸Cys | 1.85±0.47 | 1.68±0.61 | 1.75±0.35 | 1.72±0.72 | 1.70±0.38 | ||||||
| 缬氨酸Val | 22.76±1.75a | 21.98±0.84a | 22.55±1.02a | 20.56±1.46b | 21.62±0.46ab | ||||||
| 蛋氨酸Met | 5.69±0.11ab | 5.95±0.14a | 6.14±0.24a | 5.07±0.09b | 5.26±0.39b | ||||||
| 游离氨基酸 Free amino acids | 组别Groups | ||||||||||
| FM-20 | FM-15 | FM-10 | FM-5 | FM-0 | |||||||
| 异亮氨酸Ile | 8.43±0.40a | 7.91±0.31b | 8.22±0.25ab | 7.04±0.13c | 7.72±0.37b | ||||||
| 亮氨酸Leu | 17.00±0.65bc | 17.94±1.02ab | 18.99±0.77a | 16.55±0.29c | 17.06±0.33bc | ||||||
| 酪氨酸Tyr | 13.57±0.57b | 14.96±0.72a | 14.89±0.60a | 13.12±0.44bc | 12.74±0.28c | ||||||
| 苯丙氨酸Phe | 8.00±0.33a | 8.39±0.20a | 8.14±0.41a | 7.10±0.17b | 7.95±0.31a | ||||||
| 赖氨酸Lys | 51.07±2.00a | 47.63±1.79a | 48.49±1.52a | 42.48±1.24b | 39.91±0.95c | ||||||
| 组氨酸His | 21.57±0.73a | 21.80±1.36a | 21.55±0.47a | 19.79±0.33b | 19.27±0.84b | ||||||
| 精氨酸Arg | 236.3±11.7a | 229.5±14.0a | 221.6±8.9ab | 203.3±5.7b | 201.1±13.7b | ||||||
| 脯氨酸Pro | 517.4±23.8a | 510.9±18.4a | 483.0±15.7b | 476.8±14.8b | 473.0±17.7b | ||||||
| 鲜味氨基酸DAA | 704.1±8.95 | 684.2±16.3 | 708.5±25.5 | 703.7±34.0 | 706.5±17.3 | ||||||
| 总氨基酸TAA | 1 788.7±54.7 | 1 754.6±25.7 | 1 737.5±76.0 | 1 690.5±48.4 | 1 685.8±63.8 | ||||||
鲜味氨基酸包括天冬氨酸、谷氨酸、甘氨酸、丙氨酸。 | |
The DAA included Asp, Glu, Gly and Ala. |
2.5 血淋巴及肌肉生化指标
表8 棉籽浓缩蛋白替代鱼粉对凡纳滨对虾血淋巴和肌肉生化指标的影响Table 8 Effects of CPC substituting fish meal on biochemical indicators in hemolymph and flesh of Pacific white shrimp (Litopenaeus vannamei) |
| 项目 Items | 组别Groups | ||||
|---|---|---|---|---|---|
| FM-20 | FM-15 | FM-10 | FM-5 | FM-0 | |
| 血淋巴Hemolymph | |||||
| 总蛋白TP/(g/L) | 91.70±6.96 | 98.30±7.83 | 94.62±5.15 | 99.38±7.94 | 89.75±4.50 |
| 甘油三酯TG/(mmol/L) | 0.32±0.02 | 0.32±0.02 | 0.32±0.01 | 0.33±0.02 | 0.34±0.01 |
| 总胆固醇T-CHO/(mmol/L) | 0.38±0.03 | 0.37±0.01 | 0.38±0.03 | 0.37±0.03 | 0.39±0.02 |
| 肌肉Flesh | |||||
| 丙二醛MDA/(nmol/mg prot) | 0.33±0.02 | 0.32±0.01 | 0.31±0.03 | 0.31±0.01 | 0.28±0.01 |
| 超氧化物歧化酶 SOD/(U/mg prot) | 10.06±0.42 | 9.54±0.45 | 9.10±0.35 | 9.26±0.49 | 9.63±0.53 |

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