1 材料与方法
1.1 主要试剂
1.2 供试动物
1.3 供试菌株
1.4 试验方法
1.4.1 饲粮配制
表1 基础饲粮组成(风干基础)Table 1 Basal diet composition (air-dry basis)% |
| 项目 Items | 含量 Content |
|---|---|
| 豆粕 Soybean meal | 36.00 |
| 麦麸 Wheat bran | 10.00 |
| 面粉 Wheat flour | 19.00 |
| 鱼粉 Fish meal | 23.00 |
| 植物油 Vegetable oil | 11.00 |
| 添加剂 Additive | 1.00 |
| 合计 Total | 100.00 |
添加剂为每千克饲粮提供 Additive provided the following per kg of the diet: C14H19NO 0.5 g,Ca(H2PO4)2 2.5 g,CH3CH2COONa 1.8 g,NaHCO3 2.0 g,VA 9 000 IU,VD3 3 000 IU,VE 20.0 IU, VK3 3.0 mg,VB1 1.5 mg,VB2 4.0 mg,VB6 3.0 mg,VB12 0.2 mg。 |
表2 基础饲粮和试验饲粮营养水平(风干基础)Table 2 Nutritional levels of basal diet and experimental diets (air-dry basis)% |
| 项目 Items | 基础饲粮 Basal diet | 试验饲粮 Experimental diets | ||
|---|---|---|---|---|
| 8.0%黄粉虫粉 8.0% Tenebrio molitor meal | 5.0%黄粉虫粉 5.0% Tenebrio molitor meal | 2.5%黄粉虫粉 2.5% Tenebrio molitor meal | ||
| 水分 Moisture | 8.60 | 8.65 | 8.63 | 8.62 |
| 粗蛋白质 Crude protein | 22.10 | 25.54 | 23.63 | 22.86 |
| 粗脂肪 Crude lipid | 5.40 | 6.02 | 5.97 | 5.59 |
| 粗纤维 Crude fiber | 3.40 | 3.13 | 3.23 | 3.32 |
| 粗灰分 Ash | 7.70 | 7.76 | 7.74 | 7.72 |
| 钙 Ca | 1.21 | 1.21 | 1.21 | 1.21 |
| 总磷 TP | 0.96 | 0.97 | 0.97 | 0.96 |
| 赖氨酸 Lysine | 1.40 | 1.29 | 1.33 | 1.37 |
| 蛋氨酸+半胱氨酸 Methionine+cystine | 0.80 | 0.74 | 0.76 | 0.78 |
营养水平为测定值。 | |
Nutrient levels were measured values. |
1.4.2 试验设计及饲养管理
1.5 指标测定
1.5.1 饲粮营养水平测定
1.5.2 测定腹泻小鼠的采食量、饮水量与体重。
1.5.3 测定腹泻小鼠的稀便率与腹泻率
1.5.4 测定腹泻小鼠的免疫器官指数
1.5.5 测定腹泻小鼠肠道菌落数量、肠道酶活性和血清酶活性
1.6 数据统计与分析
2 结果
2.1 黄粉虫粉对腹泻小鼠采食量的影响
表3 黄粉虫粉对腹泻小鼠采食量的影响Table 3 Effects of Tenebrio molitor powder on feed intake of diarrhea miceg |
| 组别 Groups | 第1天 Day 1 | 第3天 Day 3 | 第5天 Day 5 | 第7天 Day 7 | 第9天 Day 9 | 第11天 Day 11 | 第13天 Day 13 | 第15天 Day 15 |
|---|---|---|---|---|---|---|---|---|
| 空白组 Blank group | 31.34±6.84 | 31.30±6.11 | 32.30±7.23 | 30.74±4.64 | 33.73±3.55 | 41.40±2.73a | 41.25±1.49a | 41.06±2.74a |
| 模型组 Model group | 20.25±2.31 | 22.87±0.01 | 22.93±0.11 | 22.54±1.40 | 26.94±0.48 | 22.41±1.90c | 23.08±1.23b | 21.24±1.53d |
| 高剂量组 High dose group | 19.88±2.68 | 21.85±1.46 | 21.92±1.51 | 24.80±0.09 | 28.80±2.55 | 29.38±2.04bc | 35.09±2.72ab | 34.92±1.95b |
| 中剂量组 Medium dose group | 28.78±6.95 | 27.77±8.13 | 27.99±7.84 | 26.95±7.17 | 29.42±9.20 | 31.29±0.83b | 35.31±2.92ab | 29.26±0.46bc |
| 低剂量组 Low dose group | 24.63±7.81 | 21.47±5.00 | 21.48±4.76 | 20.02±4.15 | 27.90±1.31 | 30.91±2.73b | 27.89±5.96b | 25.65±0.17cd |
同列数据肩标相同或无小写字母表示差异不显著(P>0.05),不同小写字母表示差异显著(P<0.05)。下表同。 | |
In the same column, values with the same or no small letter superscripts mean no significant difference (P>0.05), while with different small letter superscripts mean significant difference (P<0.05). The same as below. |
2.2 黄粉虫粉对腹泻小鼠饮水量的影响
表4 黄粉虫粉对腹泻小鼠饮水量的影响Table 4 Effects of Tenebrio molitor powder on water intake of diarrhea micemL |
| 组别 Groups | 第1天 Day 1 | 第3天 Day 3 | 第5天 Day 5 | 第7天 Day 7 | 第9天 Day 9 | 第11天 Day 11 | 第13天 Day 13 | 第15天 Day 15 |
|---|---|---|---|---|---|---|---|---|
| 空白组 Blank group | 11.50±5.50 | 13.50±0.50 | 14.50±0.50 | 11.50±0.50 | 14.50±0.50 | 30.00±1.00 | 28.00±2.00a | 28.50±3.50a |
| 模型组 Model group | 3.00±0.00 | 9.00±0.00 | 10.00±0.00 | 15.00±2.00 | 18.00±4.00 | 12.75±0.25 | 10.50±0.50b | 12.75±0.25b |
| 高剂量组 High dose group | 3.50±1.50 | 12.75±0.25 | 11.50±0.50 | 14.00±3.00 | 19.50±6.50 | 20.00±6.00 | 19.50±5.50ab | 23.00±3.00a |
| 中剂量组 Medium dose group | 3.50±1.50 | 10.00±1.00 | 10.00±1.00 | 11.00±2.00 | 15.75±3.25 | 18.00±6.00 | 18.00±5.00ab | 23.00±1.00a |
| 低剂量组 Low dose group | 3.50±0.50 | 7.50±3.50 | 9.75±2.75 | 11.75±1.25 | 14.25±0.75 | 12.50±5.00 | 10.25±2.25b | 14.50±0.50b |
2.3 黄粉虫粉对腹泻小鼠体重的影响
表5 黄粉虫粉对腹泻小鼠体重的影响Table 5 Effects of Tenebrio molitor powder on body weight of diarrhea miceg |
| 组别 Groups | 第1天 Day 1 | 第3天 Day 3 | 第5天 Day 5 | 第7天 Day 7 | 第9天 Day 9 | 第11天 Day 11 | 第13天 Day 13 | 第15天 Day 15 |
|---|---|---|---|---|---|---|---|---|
| 空白组 Blank group | 19.81±0.50 | 22.03±0.56 | 23.22±0.47a | 24.60±0.40a | 26.08±0.51a | 27.24±0.27a | 28.58±0.27a | 29.54±0.35a |
| 模型组 Model group | 20.29±0.59 | 20.61±0.46 | 21.02±0.33ab | 22.12±0.36ab | 23.54±0.42ab | 24.59±0.60ab | 24.53±0.52b | 24.23±0.74c |
| 高剂量组 High dose group | 18.97±0.21 | 19.42±0.36 | 19.66±0.38ab | 21.17±0.66b | 23.62±1.02ab | 25.35±0.72ab | 26.77±0.70ab | 27.59±0.48ab |
| 中剂量组 Medium dose group | 20.85±0.74 | 21.66±1.10 | 21.82±0.89ab | 22.42±0.95ab | 25.47±1.10a | 26.51±1.19a | 28.00±1.12a | 28.42±1.46a |
| 低剂量组 Low dose group | 20.23±0.61 | 20.87±0.63 | 21.52±0.75ab | 20.65±0.41b | 21.76±0.84b | 22.67±0.75b | 24.53±0.44b | 25.41±0.34bc |
2.4 黄粉虫粉对腹泻小鼠腹泻率与稀便率的影响
表6 黄粉虫粉对腹泻小鼠腹泻率的影响Table 6 Effects of Tenebrio molitor powder on diarrhea rate of diarrhea mice |
| 组别 Groups | 第1天 Day 1 | 第3天 Day 3 | 第5天 Day 5 | 第7天 Day 7 | 第9天 Day 9 | 第11天 Day 11 | 第13天 Day 13 | 第15天 Day 15 | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 腹泻只数 Number of diarrhea | 腹泻率 Diarrhea rate/% | 腹泻只数 Number of diarrhea | 腹泻率 Diarrhea rate/% | 腹泻只数 Number of diarrhea | 腹泻率 Diarrhea rate/% | 腹泻只数 Number of diarrhea | 腹泻率 Diarrhea rate/% | 腹泻只数 Number of diarrhea | 腹泻率 Diarrhea rate/% | 腹泻只数 Number of diarrhea | 腹泻率 Diarrhea rate/% | 腹泻只数 Number of diarrhea | 腹泻率 Diarrhea rate/% | 腹泻只数 Number of diarrhea | 腹泻率 Diarrhea rate/% | ||||||||||||||||||
| 空白组 Blank group | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||
| 模型组 Model | 3 | 20 | 9 | 60 | 14 | 93 | 13 | 86 | 12 | 80 | 12 | 80 | 12 | 80 | 12 | 80 | |||||||||||||||||
| 高剂量组 High dose group | 3 | 20 | 11 | 73 | 13 | 86 | 9 | 60 | 8 | 53 | 5 | 33 | 3 | 20 | 3 | 20 | |||||||||||||||||
| 中剂量组 Medium dose group | 5 | 33 | 9 | 60 | 14 | 93 | 11 | 73 | 9 | 60 | 8 | 53 | 8 | 53 | 6 | 40 | |||||||||||||||||
| 低剂量组 Low dose group | 3 | 20 | 3 | 20 | 13 | 86 | 12 | 80 | 11 | 73 | 9 | 60 | 9 | 60 | 8 | 53 | |||||||||||||||||
表7 黄粉虫粉对腹泻小鼠稀便率的影响Table 7 Effects of Tenebrio molitor powder on loose stools rate of diarrhea mice |
| 组别 Groups | 第1天 Day 1 | 第3天 Day 3 | 第5天 Day 5 | 第7天 Day 7 | 第9天 Day 9 | 第11天 Day 11 | 第13天 Day 13 | 第15天 Day 15 | |||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 稀便只数 Number of loose stools | 稀便率 Loose stools rate/% | 稀便只数 Number of loose stools | 稀便率 Loose stools rate/% | 稀便只数 Number of loose stools | 稀便率 Loose stools rate/% | 稀便只数 Number of loose stools | 稀便率 Loose stools rate/% | 稀便只数 Number of loose stools | 稀便率 Loose stools rate/% | 稀便只数 Number of loose stools | 稀便率 Loose stools rate/% | 稀便只数 Number of loose stools | 稀便率 Loose stools rate/% | 稀便只数 Number of loose stools | 稀便率 Loose stools rate/% | ||||||||||||||||||||||
| 空白组 Blank group | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||||||||
| 模型组 Model | 10 | 66 | 8 | 53 | 8 | 53 | 9 | 60 | 7 | 46 | 8 | 53 | 9 | 60 | 10 | 66 | |||||||||||||||||||||
| 高剂量组 High dose group | 7 | 46 | 8 | 53 | 9 | 53 | 9 | 60 | 6 | 40 | 5 | 33 | 4 | 26 | 2 | 13 | |||||||||||||||||||||
| 中剂量组 Medium dose group | 6 | 40 | 8 | 53 | 9 | 60 | 8 | 53 | 7 | 46 | 5 | 33 | 5 | 33 | 4 | 26 | |||||||||||||||||||||
| 低剂量组 Low dose group | 6 | 40 | 9 | 60 | 9 | 60 | 8 | 53 | 7 | 46 | 7 | 46 | 6 | 40 | 6 | 40 | |||||||||||||||||||||
2.5 黄粉虫粉对腹泻小鼠免疫器官指数的影响
表8 黄粉虫粉对腹泻小鼠免疫器官指数的影响Table 8 Effects of Tenebrio molitor powder on immune organ indexes of diarrhea micemg/g |
| 组别 Groups | 脾脏指数 Spleen index | 肝脏指数 Liver index | 胸腺指数 Thymus index |
|---|---|---|---|
| 空白组 Blank group | 10.22±0.60ab | 67.49±0.89b | 3.85±0.41a |
| 模型组 Model group | 4.80±0.06c | 57.14±2.14c | 1.57±0.12b |
| 低剂量组 Low dose group | 6.67±0.34c | 64.58±1.69bc | 2.51±0.24ab |
| 中剂量组 Medium dose group | 7.44±1.45bc | 66.13±2.44b | 3.16±0.28a |
| 高剂量组 High dose group | 11.79±1.90a | 78.16±4.78a | 3.77±0.32a |
2.6 黄粉虫粉对腹泻小鼠肠道大肠杆菌和总菌数量的影响
2.6.1 黄粉虫粉对腹泻小鼠回肠、结肠、盲肠大肠杆菌数量的影响
表9 黄粉虫粉对腹泻小鼠肠道大肠杆菌数量的影响Table 9 Effects of Tenebrio molitor powder on the number of enteric Escherichia coli of diarrhea miceCFU/mL |
| 组别 Groups | 回肠 Ileum(×104) | 盲肠 Cecum(×106) | 结肠 Colon(×104) |
|---|---|---|---|
| 空白组 Blank group | 34.30±4.39c | 76.30±9.99d | 124.00±9.99d |
| 模型组 Model group | 148.90±16.14a | 220.90±13.20a | 224.30±11.06a |
| 低剂量组 Low dose group | 70.10±4.38b | 178.80±7.85b | 190.60±7.14b |
| 中剂量组 Medium dose group | 53.10±1.32bc | 135.40±9.50c | 155.40±3.57c |
| 高剂量组 High dose group | 35.30±2.49c | 69.50±7.08d | 113.80±9.23d |
2.6.2 黄粉虫粉对腹泻小鼠回肠、结肠、盲肠总菌数量的影响
表10 黄粉虫粉对腹泻小鼠回肠、结肠、盲肠总菌数量的影响Table 10 Effects of Tenebrio molitor powder on the number of total bacteria of ileum, colon and cecum of diarrhea miceCFU/mL |
| 组别 Groups | 回肠 Ileum(×104) | 盲肠 Cecum(×106) | 结肠 Colon(×104) |
|---|---|---|---|
| 空白组 Blank group | 31.80±9.93d | 69.70±10.86c | 139.80±39.85c |
| 模型组 Model group | 216.10±15.57a | 620.60±62.51a | 1 377.30±97.03a |
| 低剂量组 Low dose group | 125.80±7.05b | 525.30±22.93a | 659.30±28.89b |
| 中剂量组 Medium dose group | 84.70±9.11d | 356.20±19.92b | 542.50±22.78b |
| 高剂量组 High dose group | 28.60±9.11d | 172.80±37.14c | 269.80±68.79c |
2.7 黄粉虫粉对腹泻小鼠肠道酶活性的影响
表11 黄粉虫粉对腹泻小鼠肠道酶活性的影响Table 11 Effects of Tenebrio molitor powder on intestinal enzyme activities of diarrhea miceU/mg prot |
| 组别 Groups | 超氧化物歧化酶 SOD | 过氧化物酶 POD | 过氧化氢酶 CAT | 谷胱甘肽转移酶 GSH | 乙酰胆碱酯酶 ACHe | 酸性磷酸酶 ACP | 乳酸脱氢酶 LDH | 淀粉酶 AMS | 脂肪酶 LPS | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 回肠 Ileum | 空白组 Black group | 172.66±8.05a | 4.32±0.27a | 24.80±2.19a | 293.25±14.50ab | 1.67±0.35a | 566.59±12.63a | 3 166.95±124.68a | 0.44±0.02a | 249.21±13.00a | ||||
| 模型组 Model group | 86.51±3.31d | 1.84±0.13b | 4.40±0.61c | 199.67±6.12d | 0.24±0.03c | 220.17±6.78d | 708.11±87.82b | 0.33±0.01c | 50.86±12.11c | |||||
| 高剂量组 High dose group | 187.59±4.21ab | 4.15±0.22a | 31.86±2.10a | 302.92±18.13a | 1.66±0.13a | 552.24±11.27a | 3 102.99±123.81a | 0.47±0.01a | 253.71±54.32a | |||||
| 中剂量组 Medium dose group | 164.77±3.23b | 3.76±0.23a | 23.51±0.83b | 262.98±7.10bc | 0.96±0.05b | 475.80±5.63b | 2 983.45±94.05a | 0.39±0.01b | 184.04±39.15ab | |||||
| 低剂量组 Low dose group | 158.11±5.08c | 3.66±0.24a | 14.94±0.96c | 257.23±6.81c | 0.81±0.08bc | 419.59±14.65c | 2 901.97±70.66a | 0.38±0.01b | 110.84±14.46bc | |||||
| 盲肠 Cecum | 空白组 Black group | 574.93±34.36a | 96.25±8.33a | 59.23±5.25a | 1076.93±60.59a | 4.28±0.29a | 816.77±54.74a | 7 735.05±471.58a | 1.13±0.05a | 871.65±74.95a | ||||
| 模型组 Model group | 274.47±45.66c | 25.68±4.05c | 10.95±0.92c | 257.50±32.43c | 0.77±0.09d | 185.49±30.16c | 3 177.89±503.50c | 0.53±0.06c | 237.81±23.88b | |||||
| 高剂量组 High dose group | 609.67±40.37a | 80.91±7.62a | 58.58±5.64a | 1034.02±39.23a | 4.41±0.48a | 727.49±57.22a | 7 560.17±323.19a | 1.09±0.09a | 832.94±108.25a | |||||
| 中剂量组 Medium dose group | 468.27±6.38b | 51.60±3.80b | 33.45±5.63b | 801.60±14.83b | 3.01±0.33b | 460.50±11.88b | 5 546.46±96.25b | 0.83±0.02b | 464.86±92.06b | |||||
| 低剂量组 Low dose group | 383.59±5.63b | 40.35±2.83bc | 31.93±2.21b | 705.63±20.05b | 1.92±0.10c | 379.57±24.91b | 4 999.93±125.64b | 0.72±0.02b | 413.28±54.92b | |||||
| 结肠 Colon | 空白组 Black group | 243.70±10.58a | 41.95±1.54a | 19.93±0.54a | 395.34±22.34a | 2.64±0.23a | 260.12±6.32a | 4 642.77±98.25a | 0.65±0.04a | 619.98±73.35a | ||||
| 模型组 Model group | 166.40±5.29d | 26.17±1.68c | 8.60±0.33d | 147.11±8.75c | 0.81±0.12b | 134.07±11.24c | 1 600.66±68.51c | 0.38±0.01c | 297.68±30.00b | |||||
| 高剂量组 High dose group | 235.32±7.21ab | 40.30±1.10a | 18.48±0.65ab | 402.38±17.58a | 2.23±0.19a | 260.85±11.18a | 4 721.23±158.41a | 0.62±0.04a | 621.26±66.10a | |||||
| 中剂量组 Medium dose group | 215.70±8.10b | 32.36±1.14b | 15.62±0.36bc | 327.62±17.08b | 1.14±0.18b | 198.25±8.88b | 4 188.70±67.99b | 0.48±0.02b | 539.35±90.55b | |||||
| 低剂量组 Low dose group | 189.82±3.67c | 31.82±1.58b | 12.54±0.76c | 308.86±28.34b | 0.96±0.19b | 172.73±6.64b | 3 937.76±106.93b | 0.47±0.01b | 308.61±32.19b | |||||
2.8 黄粉虫粉对腹泻小鼠血清酶活性的影响
表12 黄粉虫粉对腹泻小鼠血清酶活性的影响Table 12 Effects of Tenebrio molitor powder on serum enzyme activities of diarrhea miceU/mL |
| 组别 Groups | 超氧化物歧化酶 SOD | 过氧化物酶 POD | 过氧化氢酶 CAT | 谷胱甘肽转移酶 GSH | 乙酰胆碱酯酶 ACHe | 酸性磷酸酶 ACP | 乳酸脱氢酶 LDH | 淀粉酶 AMS | 脂肪酶 LPS |
|---|---|---|---|---|---|---|---|---|---|
| 空白组 Blank group | 119.71 ±2.96b | 670.37 ±65.97a | 70.94 ±11.54a | 30.34 ±2.31a | 9.61 ±1.32a | 2.26 ±0.23a | 15 477.66 ±613.93a | 715.57 ±6.70a | 387.08 ±55.4a |
| 模型组 Model group | 65.57 ±8.51d | 193.52 ±10.08b | 21.12 ±0.92c | 4.07 ±0.63b | 2.20 ±0.57c | 1.24 ±0.08b | 5 505.15 ±437.55d | 640.98 ±22.07c | 73.05 ±15.48b |
| 高剂量组 High dose group | 140.70 ±2.31a | 589.63 ±45.06a | 53.74 ±1.52ab | 25.79 ±2.01a | 10.63 ±0.35a | 2.25 ±0.06a | 10 219.93 ±430.85b | 717.49 ±4.29a | 385.66 ±40.68a |
| 中剂量组 Medium dose group | 111.80 ±3.65b | 292.63 ±17.11b | 27.86 ±3.47bc | 11.74 ±0.82b | 7.09 ±0.90b | 1.59 ±0.07b | 7 793.81 ±660.16c | 695.29 ±3.76ab | 172.19 ±11.11b |
| 低剂量组 Low dose group | 94.82 ±7.28c | 225.97 ±18.92b | 24.01 ±4.33c | 6.77 ±1.48b | 5.03 ±0.33b | 1.47 ±0.09b | 5 747.42 ±670.70d | 672.95 ±11.61bc | 120.61 ±11.68b |
