1 材料与方法
1.1 伦理声明
1.2 试验材料
表1 花椒叶粉的概略养分分析(风干基础)Table 1 Proximate nutrient analysis of Zanthoxylun bungeanum leaf powder (air-dry basis) % |
| 项目Items | 含量Content | 项目Items | 含量Content | |
|---|---|---|---|---|
| 干物质DM | 89.20 | 粗纤维CF | 13.30 | |
| 粗蛋白质CP | 14.02 | 粗灰分Ash | 12.30 | |
| 粗脂肪EE | 2.40 | 总能GE/(MJ/kg) | 15.99 |
1.3 试验设计
1.4 试验饲粮
表2 基础饲粮组成及营养水平(风干基础)Table 2 Composition and nutrient levels of basal the diet (air-dry basis) % |
| 项目Items | 含量Content |
|---|---|
| 原料Ingredients | |
| 玉米Corn | 76.81 |
| 豆粕Soybean meal (43% CP) | 20.00 |
| 磷酸氢钙CaHPO4 | 1.30 |
| 石粉Limestone | 1.20 |
| 食盐NaCl | 0.30 |
| DL-蛋氨酸DL-Met | 0.09 |
| 预混料Premix1) | 0.30 |
| 合计Total | 100.00 |
| 营养水平Nutrient levels2) | |
| 粗蛋白质CP | 15.41 |
| 代谢能ME/(MJ/kg) | 12.35 |
| 钙Ca | 0.68 |
| 有效磷AP | 0.35 |
| 赖氨酸Lys | 0.65 |
| 蛋氨酸Met | 0.35 |
1)预混料为每千克饲粮提供 The premix provided the following per kg of the diet:VA 2 500 IU,VD3 2 000 IU,VE 10 IU,VB2 10 mg,VB6 3 mg,VB12 200 μg,D-泛酸 D-pantothenic acid 10 mg,叶酸folic acid 1 mg,生物素biotin 0.15 mg,氯化胆碱 choline chloride 1 g,Cu 8 mg, Fe 60 mg,Zn 60 mg,Mn 100 mg,I 0.2 mg,Se 0.3 mg。 |
表3 试验饲粮组成及营养水平(风干基础)Table 3 Composition and nutrient levels of experimental diets (air-dry basis) % |
| 项目 Items | 花椒叶粉添加量 Zanthoxylun bungeanum leaf powder supplemental levels/% | |||
|---|---|---|---|---|
| 0 | 2 | 3 | 4 | |
| 原料Ingredients | ||||
| 玉米Corn | 38.76 | 37.46 | 36.55 | 35.60 |
| 玉米干酒精糟及其可溶物Corn DDGS | 15.00 | 15.00 | 15.00 | 15.00 |
| 豆粕Soybean meal (CP 43%) | 12.20 | 11.96 | 11.78 | 11.60 |
| 面粉Wheat flour | 10.00 | 11.49 | 12.56 | 13.64 |
| 次粉Wheat middling | 10.00 | 10.00 | 10.00 | 10.00 |
| 玉米胚芽粕Corn germ meal | 3.00 | 3.00 | 3.00 | 3.00 |
| 干白酒糟Dried liquor distiller’s grain | 2.00 | 2.00 | 2.00 | 2.00 |
| 豆油Soybean oil | 0.50 | 0.50 | 0.50 | 0.50 |
| 小麦麸Wheat bran | 4.00 | 2.00 | 1.00 | |
| 花椒叶粉Zanthoxylun bungeanum leaf powder | 2.00 | 3.00 | 4.00 | |
| 食盐NaCl | 0.25 | 0.25 | 0.25 | 0.25 |
| 石粉Limestone | 1.85 | 1.83 | 1.82 | 1.82 |
| 磷酸氢钙CaHPO4 | 0.82 | 0.85 | 0.87 | 0.89 |
| 氯化胆碱Choline chloride | 0.10 | 0.10 | 0.10 | 0.10 |
| L-赖氨酸硫酸盐L-Lys·H2SO4 | 0.76 | 0.78 | 0.79 | 0.81 |
| L-苏氨酸L-Thr | 0.20 | 0.21 | 0.21 | 0.22 |
| DL-蛋氨酸DL-Met | 0.18 | 0.19 | 0.19 | 0.19 |
| 硫酸钠Na2SO4 | 0.15 | 0.15 | 0.15 | 0.15 |
| 预混料Premix1) | 0.23 | 0.23 | 0.23 | 0.23 |
| 合计Total | 100.00 | 100.00 | 100.00 | 100.00 |
| 营养水平Nutrient levels2) | ||||
| 代谢能ME/(MJ/kg) | 11.51 | 11.51 | 11.51 | 11.51 |
| 粗蛋白质CP | 16.95 | 16.90 | 16.88 | 16.91 |
| 钙Ca | 0.88 | 0.89 | 0.88 | 0.88 |
| 有效磷AP | 0.30 | 0.30 | 0.30 | 0.30 |
| 赖氨酸Lys | 1.10 | 1.10 | 1.10 | 1.10 |
| 蛋氨酸Met | 0.45 | 0.45 | 0.45 | 0.45 |
| 蛋氨酸+胱氨酸Met+Cys | 0.73 | 0.73 | 0.73 | 0.73 |
1)预混料为每千克饲粮提供The premix provided the following per kg of the diets:VA 3 000 IU,VD3 2 000 IU,VE 20 IU,VB2 10 mg,VB6 3 mg,VB12 200 μg,D-泛酸 D-pantothenic acid 10 mg,叶酸folic acid 1 mg,生物素biotin 0.15 mg,氯化胆碱 choline chloride 1 g,Cu 8 mg, Fe 60 mg,Zn 60 mg,Mn 100 mg,I 0.3 mg,Se 0.4 mg。 |
1.5 饲养管理
1.6 检测指标及方法
1.6.1 花椒叶粉代谢能和养分表观消化率测定
饲粮养分表观消化率(%)=[1-(饲粮中铬含量/粪中铬含量)×(粪中养分含量/饲粮中养分含量)]×100;
待测原料养分表观消化率(%)=(试验饲粮养分表观消化率-基础饲粮养分表观消化率)/待测原料占试验饲粮的比例+基础饲粮养分表观消化率;
待测原料代谢能(MJ/kg)=待测原料能量表观消化率×待测原料总能。
1.6.2 生长性能测定
1.6.3 屠宰性能及器官指数测定
器官指数(g/kg)=器官重量(g)/屠宰前活体重(kg)。
1.6.4 血清生化指标
1.6.5 血清抗氧化指标
1.6.6 肠道形态指标
1.6.7 肠道免疫指标
1.7 数据分析
2 结果
2.1 樱桃谷肉鸭对花椒叶粉的代谢能和养分表观消化率
表4 樱桃谷肉鸭对花椒叶粉的代谢能和养分表观消化率(风干基础)Table 4 ME and nutrient apparent digestibilities of Zanthoxylun bungeanum leaf powder for Cherry Valley ducks (air-dry basis) |
| 项目 Items | 花椒叶粉 Zanthoxylun bungeanum leaf powder |
|---|---|
| 代谢能ME/(MJ/kg) | 6.17±0.21 |
| 能量表观消化率Apparent digestibility of energy/% | 37.00±2.04 |
| 粗蛋白质表观消化率Apparent digestibility of crude protein/% | 43.01±1.94 |
2.2 花椒叶粉对樱桃谷肉鸭生长性能的影响
表5 花椒叶粉对樱桃谷肉鸭生长性能的影响Table 5 Effects of Zanthoxylun bungeanum leaf powder on growth performance of Cherry Valley ducks |
| 项目 Items | 花椒叶粉添加量 Zanthoxylun bungeanum leaf powder supplemental levels/% | 均值 标准误 SEM | P值P-value | |||||
|---|---|---|---|---|---|---|---|---|
| 方差分析 ANOVA | 线性 Linear | 二次 Quadratic | ||||||
| 0 | 2 | 3 | 4 | |||||
| 体重Body weight/g | ||||||||
| 13日龄13 days of age | 548.82 | 551.36 | 551.26 | 555.25 | 2.296 | 0.816 | 0.375 | 0.880 |
| 21日龄21 days of age | 1 294.76a | 1 201.29b | 1 129.48c | 1 103.90c | 14.990 | <0.001 | <0.001 | 0.708 |
| 42日龄42 days of age | 3 354.17a | 3 137.75b | 2 999.31c | 2 835.83d | 40.082 | <0.001 | <0.001 | 0.554 |
| 13~21日龄13 to 21 days of age | ||||||||
| 平均日增重ADG/(g/d) | 82.88a | 72.21b | 64.25c | 60.94c | 1.660 | <0.001 | <0.001 | 0.758 |
| 平均日采食量ADFI/(g/d) | 146.29a | 138.10b | 125.82c | 123.61c | 1.850 | <0.001 | <0.001 | 0.094 |
| 料重比F/G | 1.76c | 1.91b | 1.95b | 2.03a | 0.020 | <0.001 | <0.001 | 0.114 |
| 22~42日龄22 to 42 days of age | ||||||||
| 平均日增重ADG/(g/d) | 95.45a | 92.21ab | 87.46b | 80.56c | 1.419 | <0.001 | <0.001 | 0.393 |
| 平均日采食量ADFI/(g/d) | 211.78a | 197.90b | 190.46b | 177.74c | 2.581 | <0.001 | <0.001 | 0.838 |
| 料重比F/G | 2.22 | 2.14 | 2.18 | 2.21 | 0.021 | 0.594 | 0.955 | 0.237 |
| 13~42日龄13 to 42 days of age | ||||||||
| 平均日增重ADG/(g/d) | 91.66a | 86.21b | 80.25c | 73.66d | 1.455 | <0.001 | <0.001 | 0.742 |
| 平均日采食量ADFI/(g/d) | 191.91a | 179.97b | 171.01c | 161.29d | 2.306 | <0.001 | <0.001 | 0.636 |
| 料重比F/G | 2.09 | 2.08 | 2.13 | 2.19 | 0.018 | 0.145 | 0.038 | 0.325 |
2.3 花椒叶粉对樱桃谷肉鸭屠宰性能的影响
表6 花椒叶粉对樱桃谷肉鸭屠宰性能的影响Table 6 Effects of Zanthoxylun bungeanum leaf powder on slaughter performance of Cherry Valley ducks % |
| 项目 Items | 花椒叶粉添加量 Zanthoxylun bungeanum leaf powder supplemental levels/% | 均值 标准误 SEM | P值P-value | |||||
|---|---|---|---|---|---|---|---|---|
| 方差分析 ANOVA | 线性 Linear | 二次 Quadratic | ||||||
| 0 | 2 | 3 | 4 | |||||
| 屠宰率Dressing percentage | 87.63 | 87.49 | 88.56 | 87.53 | 0.285 | 0.515 | 0.761 | 0.446 |
| 半净膛率 Half-eviscerated yield percentage | 78.61 | 80.32 | 79.27 | 80.90 | 0.564 | 0.499 | 0.264 | 0.297 |
| 全净膛率 Eviscerated yield percentage | 74.34 | 75.63 | 74.36 | 75.72 | 0.569 | 0.733 | 0.587 | 0.329 |
| 胸肌率 Breast muscle percentage | 19.49 | 18.72 | 18.84 | 18.72 | 0.151 | 0.221 | 0.109 | 0.282 |
| 腿肌率 Thigh muscle percentage | 12.64 | 12.47 | 13.49 | 12.26 | 0.225 | 0.237 | 0.947 | 0.243 |
2.4 花椒叶粉对樱桃谷肉鸭器官指数的影响
表7 花椒叶粉对樱桃谷肉鸭器官指数的影响Table 7 Effects of Zanthoxylun bungeanum leaf powder on immune organ indices of Cherry Valley ducks g/kg |
| 项目 Items | 花椒叶粉添加量 Zanthoxylun bungeanum leaf powder supplemental levels/% | 均值 标准误 SEM | P值P-value | |||||
|---|---|---|---|---|---|---|---|---|
| 方差分析 ANOVA | 线性 Linear | 二次 Quadratic | ||||||
| 0 | 2 | 3 | 4 | |||||
| 心脏指数Cardiac index | 4.88 | 5.18 | 5.58 | 6.01 | 0.194 | 0.189 | 0.021 | 0.869 |
| 肝脏指数Liver index | 21.01 | 20.45 | 20.39 | 20.29 | 0.368 | 0.911 | 0.525 | 0.765 |
| 肾脏指数Kidney index | 5.17 | 6.05 | 5.68 | 6.36 | 0.185 | 0.124 | 0.053 | 0.782 |
| 肌胃指数Proventriculus index | 17.74 | 18.70 | 17.94 | 18.34 | 0.340 | 0.775 | 0.742 | 0.687 |
| 腺胃指数Gizzard index | 2.30 | 2.09 | 2.28 | 2.17 | 0.078 | 0.786 | 0.814 | 0.761 |
| 脾脏指数Spleen index | 0.71a | 0.51b | 0.47b | 0.55b | 0.023 | <0.001 | 0.003 | 0.001 |
| 胸腺指数Thymus index | 4.28 | 3.97 | 3.67 | 2.72 | 0.247 | 0.132 | 0.026 | 0.498 |
| 法氏囊指数 Bursa of Fabricius index | 0.52 | 0.53 | 0.57 | 0.56 | 0.031 | 0.958 | 0.623 | 0.903 |
2.5 花椒叶粉对樱桃谷肉鸭血清生化指标的影响
表8 花椒叶粉对樱桃谷肉鸭血清生化指标的影响Table 8 Effects of Zanthoxylun bungeanum leaf powder on serum biochemical indicators of Cherry Valley ducks |
| 项目 Items | 花椒叶粉添加量 Zanthoxylun bungeanum leaf powder supplemental levels/% | 均值 标准误 SEM | P值P-value | |||||
|---|---|---|---|---|---|---|---|---|
| 方差分析 ANOVA | 线性 Linear | 二次 Quadratic | ||||||
| 0 | 2 | 3 | 4 | |||||
| 总蛋白TP/(g/L) | 45.16 | 43.66 | 38.80 | 37.50 | 1.450 | 0.173 | 0.031 | 0.972 |
| 总胆固醇TC/(mmol/L) | 4.41 | 4.23 | 3.80 | 3.76 | 0.161 | 0.414 | 0.105 | 0.832 |
| 甘油三酯TG/(mmol/L) | 0.83a | 0.61b | 0.63b | 0.52b | 0.373 | 0.016 | 0.004 | 0.374 |
| 尿素UREA/(mmol/L) | 0.53 | 0.49 | 0.58 | 0.60 | 0.020 | 0.189 | 0.091 | 0.508 |
| 谷丙转氨酶ALT/(U/L) | 44.04 | 44.34 | 37.03 | 48.60 | 1.705 | 0.170 | 0.661 | 0.103 |
| 谷草转氨酶AST/(U/L) | 42.67 | 41.73 | 39.48 | 35.57 | 2.075 | 0.627 | 0.210 | 0.727 |
2.6 花椒叶粉对樱桃谷肉鸭血清抗氧化指标的影响
表9 花椒叶粉对樱桃谷肉鸭血清抗氧化指标的影响Table 9 Effects of Zanthoxylun bungeanum leaf powder on serum antioxidant indicators of Cherry Valley ducks |
| 项目 Items | 花椒叶粉添加量 Zanthoxylun bungeanum leaf powder supplemental levels/% | 均值 标准误 SEM | P值P-value | |||||
|---|---|---|---|---|---|---|---|---|
| 方差分析 ANOVA | 线性 Linear | 二次 Quadratic | ||||||
| 0 | 2 | 3 | 4 | |||||
| 总抗氧化能力 T-AOC/(nmol/mL) | 76.69b | 111.72ab | 136.59a | 140.87a | 9.326 | 0.045 | 0.008 | 0.360 |
| 总超氧化物歧化酶 T-SOD/(U/mL) | 91.23c | 137.23b | 417.03a | 415.03a | 32.245 | <0.001 | <0.001 | 0.085 |
| 谷胱甘肽过氧化物酶 GSH-Px/(U/mL) | 3 737.05 | 5 132.30 | 3 800.00 | 3 452.25 | 242.050 | 0.053 | 0.269 | 0.056 |
| 丙二醛MDA/(nmol/mL) | 1.51a | 0.94b | 1.15b | 1.18b | 0.055 | <0.001 | 0.036 | <0.001 |
2.7 花椒叶粉对樱桃谷肉鸭肠道形态的影响
表10 花椒叶粉对樱桃谷肉鸭肠道形态的影响Table 10 Effects of Zanthoxylun bungeanum leaf powder on intestinal morphology of Cherry Valley ducks |
| 项目 Items | 花椒叶粉添加量 Zanthoxylun bungeanum leaf powder supplemental levels/% | 均值 标准误 SEM | P值P-value | |||||
|---|---|---|---|---|---|---|---|---|
| 方差分析 ANOVA | 线性 Linear | 二次 Quadratic | ||||||
| 0 | 2 | 3 | 4 | |||||
| 十二指肠绒毛高度 Villus height of duodenum/μm | 474.67b | 659.55a | 568.16ab | 598.18a | 19.979 | 0.009 | 0.105 | 0.042 |
| 十二指肠隐窝深度 Crypt depth of duodenum/μm | 112.47b | 152.26a | 121.23b | 105.07b | 3.723 | <0.001 | 0.059 | <0.001 |
| 十二指肠绒隐比 V/C of duodenum | 4.18b | 4.35b | 4.68b | 5.75a | 0.131 | <0.001 | <0.001 | 0.046 |
| 空肠指肠绒毛高度 Villus height of jejunum/μm | 393.36b | 504.34a | 403.28b | 417.05b | 13.255 | 0.012 | 0.782 | 0.056 |
| 空肠指肠隐窝深度 Crypt depth of jejunum/μm | 130.37a | 117.79a | 128.44a | 72.31b | 4.685 | <0.001 | <0.001 | 0.004 |
| 空肠指肠绒隐比 V/C of jejunum | 3.22c | 4.33b | 3.34c | 5.80a | 0.180 | <0.001 | <0.001 | 0.009 |
| 回肠指肠绒毛高度 Villus height of ileum/μm | 399.97b | 372.41b | 492.68a | 431.81ab | 14.422 | 0.022 | 0.080 | 0.546 |
| 回肠指肠隐窝深度 Crypt depth of ileum/μm | 129.30 | 116.09 | 136.90 | 132.73 | 3.598 | 0.224 | 0.322 | 0.529 |
| 回肠指肠绒隐比 V/C of ileum | 3.14 | 3.45 | 3.61 | 3.29 | 0.093 | 0.164 | 0.357 | 0.041 |
2.8 花椒叶粉对樱桃谷肉鸭肠道免疫功能的影响
表11 花椒叶粉对樱桃谷肉鸭空肠免疫指标的影响Table 11 Effects of Zanthoxylun bungeanum leaf powder on jejunum immune indicators of Cherry Valley ducks |
| 项目 Items | 花椒叶粉添加量 Zanthoxylun bungeanum leaf powder supplemental levels/% | 均值 标准误 SEM | P值P-value | |||||
|---|---|---|---|---|---|---|---|---|
| 方差分析 ANOVA | 线性 Linear | 二次 Quadratic | ||||||
| 0 | 2 | 3 | 4 | |||||
| 分泌型免疫球蛋白A sIgA/(μg/mg prot) | 158.98 | 169.25 | 172.39 | 155.26 | 4.502 | 0.510 | 0.846 | 0.149 |
| 白细胞介素-10 IL-10/(ng/g prot) | 1 486.89 | 1 590.60 | 1 598.97 | 1 467.43 | 3.723 | 0.184 | 0.830 | 0.033 |
| 肿瘤坏死因子-α TNF-α/(ng/g prot) | 6 860.35 | 7 381.19 | 7 427.02 | 6 868.68 | 136.987 | 0.284 | 0.953 | 0.915 |
| 肿瘤坏死因子-γ TNF-γ/(ng/g prot) | 797.90 | 779.62 | 800.37 | 814.46 | 14.939 | 0.891 | 0.623 | 0.614 |
| 白细胞介素-1β IL-1β/(ng/g prot) | 596.88 | 540.52 | 653.62 | 585.76 | 8.496 | 0.060 | 0.521 | 0.835 |
表12 花椒叶粉对樱桃谷肉鸭回肠免疫指标的影响Table 12 Effects of Zanthoxylun bungeanum leaf powder on ileum immune indicators of Cherry Valley ducks |
| 项目 Items | 花椒叶粉添加量 Zanthoxylun bungeanum leaf powder supplemental levels/% | 均值 标准误 SEM | P值P-value | |||||
|---|---|---|---|---|---|---|---|---|
| 方差分析 ANOVA | 线性 Linear | 二次 Quadratic | ||||||
| 0 | 2 | 3 | 4 | |||||
| 分泌型免疫球蛋白A sIgA/(μg/mg prot) | 152.36a | 171.49b | 156.66ab | 172.52b | 3.045 | 0.024 | 0.063 | 0.756 |
| 白细胞介素-10 IL-10/(ng/g prot) | 1 498.49 | 1 556.53 | 1 547.65 | 1 499.30 | 24.382 | 0.776 | 0.978 | 0.309 |
| 肿瘤坏死因子-α TNF-α/(ng/g prot) | 6 754.54 | 7 411.94 | 7 096.71 | 7 196.96 | 110.204 | 0.203 | 0.297 | 0.202 |
| 肿瘤坏死因子-γ TNF-γ/(ng/g prot) | 778.58 | 719.72 | 773.18 | 752.31 | 13.657 | 0.437 | 0.838 | 0.496 |
| 白细胞介素-1β IL-1β/(ng/g prot) | 606.59 | 563.10 | 609.45 | 600.31 | 8.496 | 0.187 | 0.709 | 0.302 |
