1 材料与方法
1.1 动物试验伦理声明
1.2 蒿属植物的采集与提取物的制备
1.3 试验设计
表1 试验分组及蒿属植物水提物添加量Table 1 Experimental groups and addition levels of aqueous extracts from Artemisia |
| 组别Groups | 添加量Addition levels |
|---|---|
| 对照CON | 0 |
| 艾蒿水提物AA | 1 500 mg/kg艾蒿水提物 |
| 黑沙蒿水提物AO | 1 500 mg/kg黑沙蒿水提物 |
| 黄花蒿水提物AL | 1 500 mg/kg黄花蒿水提物 |
| 艾蒿水提物+黑沙蒿水提物AA+AO | 750 mg/kg艾蒿水提物+750 mg/kg黑沙蒿水提物 |
| 艾蒿水提物+黄花蒿水提物AA+AL | 750 mg/kg艾蒿水提物+750 mg/kg黄花蒿水提物 |
| 黑沙蒿水提物+黄花蒿水提物AO+AL | 750 mg/kg黑沙蒿水提物+750 mg/kg黄花蒿水提物 |
| 艾蒿水提物+黑沙蒿水提物+黄花蒿水提物 AA+AO+AL | 500 mg/kg艾蒿水提物+500 mg/kg黑沙蒿水提物+ 500 mg/kg黄花蒿水提物 |
表2 基础饲粮组成及营养水平(风干基础)Table 2 Composition and nutrient levels of the basal diet (air-dry basis) % |
| 原料Ingredients | 含量Content | 营养水平Nutrient levels2) | 含量Content | |
|---|---|---|---|---|
| 玉米Corn | 60.00 | 代谢能ME/(MJ/kg) | 11.50 | |
| 豆粕Soybean meal | 21.50 | 粗蛋白质CP | 17.50 | |
| 棉籽粕Cottonseed meal | 1.50 | 钙Ca | 4.55 | |
| 玉米蛋白粉Corn gluten meal | 3.50 | 磷P | 0.40 | |
| 石粉Limestone | 7.00 | 赖氨酸Lys | 0.80 | |
| 贝壳粉Shell powder | 4.00 | 蛋氨酸Met | 0.35 | |
| 磷酸氢钙CaHPO4 | 1.20 | 蛋氨酸+胱氨酸Met+Cys | 0.64 | |
| 食盐NaCl | 0.30 | |||
| 预混料Premix1) | 1.00 | |||
| 合计Total | 100.00 |
1)预混料为每千克饲粮提供 Premix provided the following per kg of the diet:Mn 63.6 mg,Zn 69 mg,Fe 30 mg,Cu 6.25 mg,I 0.4 mg,Se 0.2 mg,VA 8 000 IU,VD3 3 000 IU,VE 15 IU,VK3 1.88 mg,VB1 1.96 mg,VB2 4 mg,VB6 3.92 mg,VB12 0.01 mg,泛酸钙 calcium pantothenate 11.76 mg,烟酸 nicotinic acid 39.8 mg,叶酸 folic acid 0.98 mg,生物素 biotin 0.1 mg,胆碱 choline 212.5 mg。 |
1.4 饲养管理
1.5 测定指标与方法
1.5.1 饲粮营养水平的测定和计算
1.5.2 生产性能的测定
1.5.3 血清的制备与指标测定
1.5.4 脾脏样品的采集与指标测定
1.5.4.1 脾脏样品的采集与免疫指标的测定
1.5.4.2 脾脏免疫相关基因表达的测定
表3 引物序列Table 3 Primer sequences |
| 基因 Genes | 引物序列 Primer sequences (5'—3') | GenBank登录号 GenBank Accession number | 产物长度 Product length/bp | ||||
|---|---|---|---|---|---|---|---|
| 白细胞介素-6 IL-6 | F:AAATCCCTCCTCGCCAATCT R:CCCTCACGGTCTTCTCCATAAA | HM_179640 | 106 | ||||
| 白细胞介素-1β IL-1β | F:CAGCCTCAGCGAAGAGACCTT R:ACTGTGGTGTGCTCAGAATCC | NM_204524 | 84 | ||||
| 核因子-κB p65亚基 NF-κB p65 | F:CAGCCCATCTATGACAACCG R:CAGCCCAGAAACGAACCTC | D13721 | 151 | ||||
| Toll样受体4 TLR4 | F:TTCAGAACGGACTCTTGAGTGG R:CAACCGAATAGTGGTGACGTTG | NM_001030693 | 131 | ||||
| 核因子-κB抑制蛋白激酶β亚基 IKKβ | F:GGTCCCTGGGAGATGAAGGA R:CAGTACTCCATGGCCAGCAA | NM_001395965.1 | 260 | ||||
| 核因子-κB抑制蛋白α IκBα | F:GGCAGATGTGAACAAGGTGA R:TATCTGCAGGTCAGCTGTGG | NM_001001472.3 | 118 | ||||
| β-肌动蛋白 β-actin | F:GCCAACAGAGAGAAGATGACAC R:GTAACACCATCACCAGAGTCCA | NM_205518 | 118 |
1.6 数据统计与分析
2 结果
2.1 3种蒿属植物水提物及其组合对蛋鸡生产性能的影响
表4 3种蒿属植物水提物及其组合对蛋鸡生产性能的影响Table 4 Effects of aqueous extracts from three Artemisia species and their combinations on production performance of laying hens |
| 项目 Items | 组别Groups | 均值标准误 SEM | P值 P-value | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CON | AA | AO | AL | AA+AO | AA+AL | AO+AL | AA+AO+AL | |||
| 产蛋率Laying rate/% | ||||||||||
| 第1~28天Days 1 to 28 | 88.98 | 86.70 | 87.76 | 88.44 | 89.59 | 92.20 | 90.67 | 93.98 | 0.663 | 0.168 |
| 第29~56天Days 29 to 56 | 84.63 | 86.00 | 87.22 | 81.67 | 88.41 | 86.84 | 89.97 | 87.99 | 0.665 | 0.115 |
| 第1~56天Days 1 to 56 | 86.81 | 86.35 | 87.27 | 87.26 | 88.82 | 89.41 | 89.75 | 88.93 | 0.624 | 0.596 |
| 平均蛋重Average egg weight/g | ||||||||||
| 第1~28天Days 1 to 28 | 58.42bc | 58.71abc | 57.88c | 57.89c | 59.40ab | 59.13abc | 58.83abc | 59.81a | 0.162 | 0.019 |
| 第29~56天Days 29 to 56 | 58.40b | 58.66b | 58.41b | 58.37b | 59.77ab | 58.41b | 58.96b | 60.22a | 0.154 | 0.002 |
| 第1~56天Days 1 to 56 | 58.51bc | 58.77bc | 58.27c | 58.18c | 59.58ab | 58.67bc | 58.86bc | 59.98a | 0.144 | 0.009 |
| 料蛋比F/E | ||||||||||
| 第1~28天Days 1 to 28 | 2.31a | 2.18ab | 2.16ab | 2.02b | 1.98b | 1.93b | 1.96b | 1.90b | 0.035 | 0.040 |
| 第29~56天Days 29 to 56 | 2.13a | 2.03ab | 1.95abc | 2.04ab | 1.97abc | 1.79c | 1.91abc | 1.82bc | 0.028 | 0.035 |
| 第1~56天Days 1 to 56 | 2.22a | 2.08abc | 2.09ab | 1.98bc | 1.96bc | 1.91bc | 1.93bc | 1.86c | 0.027 | 0.028 |
| 平均日采食量ADFI/(g/d) | ||||||||||
| 第1~28天Days 1 to 28 | 117.19 | 128.41 | 126.86 | 116.29 | 119.20 | 117.61 | 116.28 | 119.86 | 1.685 | 0.478 |
| 第29~56天Days 29 to 56 | 120.83 | 122.84 | 110.97 | 116.51 | 118.71 | 109.49 | 115.03 | 114.95 | 1.665 | 0.483 |
| 第1~56天Days 1 to 56 | 118.19 | 124.45 | 120.94 | 116.40 | 118.05 | 115.84 | 114.39 | 116.20 | 1.536 | 0.816 |
同行数据肩标无字母或相同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 row, values with no letter or the same 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 3种蒿属植物水提物及其组合对蛋鸡血清生化指标的影响
表5 3种蒿属植物水提物及其组合对蛋鸡血清生化指标的影响Table 5 Effects of aqueous extracts from three Artemisia species and their combinations on serum biochemical indexes of laying hens |
| 项目 Items | 组别Groups | 均值标准误 SEM | P值 P-value | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CON | AA | AO | AL | AA+AO | AA+AL | AO+AL | AA+AO+AL | |||
| 第28天Day 28 | ||||||||||
| 丙氨酸氨基转移酶ALT/(U/L) | 23.50 | 23.20 | 22.42 | 22.50 | 23.08 | 22.20 | 21.17 | 20.92 | 0.341 | 0.465 |
| 天冬氨酸氨基转移酶AST/(U/L) | 204.60a | 200.72ab | 199.18ab | 201.03ab | 183.77b | 184.80b | 182.78b | 183.54b | 2.271 | 0.017 |
| 碱性磷酸酶ALP/(U/L) | 145.28 | 154.97 | 142.08 | 145.35 | 145.50 | 146.13 | 152.35 | 151.68 | 1.913 | 0.714 |
| 总蛋白TP/(g/L) | 50.47 | 51.62 | 50.83 | 50.87 | 54.77 | 54.17 | 54.35 | 55.10 | 0.726 | 0.061 |
| 白蛋白ALB/(g/L) | 17.20 | 17.03 | 18.31 | 18.94 | 18.22 | 17.16 | 18.57 | 17.65 | 0.302 | 0.688 |
| 甘油三酯TG/(mmol/L) | 21.99 | 21.97 | 21.72 | 21.50 | 19.95 | 21.19 | 20.20 | 18.89 | 0.299 | 0.073 |
| 总胆固醇TC/(mmol/L) | 5.76 | 5.42 | 6.14 | 5.40 | 5.91 | 5.57 | 5.87 | 6.08 | 0.102 | 0.479 |
| 乳酸脱氢酶LDH/(U/L) | 361.05 | 358.13 | 388.30 | 355.82 | 389.20 | 386.90 | 353.75 | 385.92 | 5.603 | 0.391 |
| 第56天Day 56 | ||||||||||
| 丙氨酸氨基转移酶ALT/(U/L) | 23.14a | 22.22ab | 20.58abc | 19.97abc | 19.15bc | 18.78bc | 18.82bc | 18.10c | 0.439 | 0.046 |
| 天冬氨酸氨基转移酶AST/(U/L) | 207.27a | 202.02ab | 203.80a | 205.78a | 196.42ab | 187.70b | 195.38ab | 186.85b | 1.967 | 0.032 |
| 碱性磷酸酶ALP/(U/L) | 136.78 | 140.00 | 138.75 | 138.90 | 140.77 | 146.92 | 143.22 | 151.30 | 1.490 | 0.233 |
| 总蛋白TP/(g/L) | 52.50b | 53.80ab | 54.32ab | 54.60ab | 55.13ab | 59.12a | 58.43a | 59.30a | 0.662 | 0.045 |
| 白蛋白ALB/(g/L) | 16.30c | 16.58bc | 18.05ab | 17.73abc | 18.32a | 17.92ab | 18.23a | 18.40a | 0.195 | 0.024 |
| 甘油三酯TG/(mmol/L) | 21.22a | 20.45ab | 20.31ab | 19.98ab | 18.81b | 19.07b | 19.14b | 18.68b | 0.222 | 0.024 |
| 总胆固醇TC/(mmol/L) | 5.87 | 6.01 | 5.79 | 5.99 | 5.49 | 5.45 | 5.56 | 5.33 | 0.073 | 0.389 |
| 乳酸脱氢酶LDH/(U/L) | 367.63 | 365.85 | 357.93 | 358.05 | 327.95 | 339.78 | 335.43 | 343.97 | 6.202 | 0.692 |
2.3 3种蒿属植物水提物及其组合对蛋鸡血清免疫指标的影响
表6 3种蒿属植物水提物及其组合对蛋鸡血清免疫指标的影响Table 6 Effects of aqueous extracts from three Artemisia species and their combinations on serum immune indexes of laying hens |
| 项目 Items | 组别Groups | 均值标准误 SEM | P值 P-value | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CON | AA | AO | AL | AA+AO | AA+AL | AO+AL | AA+AO+AL | |||
| 第28天Day28 | ||||||||||
| 免疫球蛋白A IgA/(μg/mL) | 32.90 | 36.10 | 36.38 | 32.28 | 51.86 | 34.70 | 41.29 | 40.20 | 1.540 | 0.075 |
| 免疫球蛋白G IgG/(μg/mL) | 9.52 | 9.57 | 9.92 | 9.75 | 9.86 | 9.57 | 9.61 | 9.58 | 0.050 | 0.670 |
| 免疫球蛋白M IgM/(ng/mL) | 196.47b | 197.20b | 191.02b | 197.04b | 210.38a | 185.88b | 188.84b | 185.68b | 1.640 | 0.007 |
| 白细胞介素-1β IL-1β/(pg/mL) | 37.54 | 38.45 | 42.20 | 34.29 | 40.53 | 36.05 | 34.89 | 35.28 | 0.860 | 0.305 |
| 白细胞介素-2 IL-2/(pg/mL) | 95.11 | 92.93 | 95.16 | 94.33 | 92.64 | 90.59 | 91.44 | 91.82 | 0.520 | 0.189 |
| 白细胞介素-4 IL-4/(pg/mL) | 99.82b | 103.39b | 107.97b | 100.48b | 142.54a | 100.87b | 107.83b | 102.29b | 1.880 | <0.001 |
| 第56天Day 56 | ||||||||||
| 免疫球蛋白A IgA/(μg/mL) | 31.94b | 28.38b | 33.65b | 31.04b | 30.27b | 31.09b | 54.09a | 55.04a | 1.930 | <0.001 |
| 免疫球蛋白G IgG/(μg/mL) | 9.36b | 9.33b | 9.44ab | 9.36b | 9.50ab | 9.56a | 9.38ab | 9.59a | 0.020 | 0.010 |
| 免疫球蛋白M IgM/(ng/mL) | 185.41cd | 185.35cd | 183.62d | 186.27bcd | 185.52cd | 186.50bc | 188.65ab | 189.84a | 0.390 | <0.001 |
| 白细胞介素-1β IL-1β/(pg/mL) | 42.29a | 41.50ab | 38.94abc | 35.03c | 37.37bc | 35.84c | 34.35c | 36.04c | 0.630 | <0.001 |
| 白细胞介素-2 IL-2/(pg/mL) | 98.99a | 99.40a | 97.74a | 98.53a | 96.23ab | 96.06ab | 93.00b | 93.06b | 0.584 | 0.022 |
| 白细胞介素-4 IL-4/(pg/mL) | 104.17 | 104.22 | 101.15 | 103.29 | 103.25 | 103.04 | 107.50 | 109.09 | 0.700 | 0.130 |
2.4 3种蒿属植物水提物及其组合对蛋鸡脾脏免疫指标的影响
表7 3种蒿属植物水提物及其组合对蛋鸡脾脏免疫指标的影响Table 7 Effects of aqueous extracts from three Artemisia species and their combinations on spleen immune indexes of laying hens |
| 项目 Items | 组别Groups | 均值标准误 SEM | P值 P-value | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CON | AA | AO | AL | AA+AO | AA+AL | AO+AL | AA+AO+AL | |||
| 免疫球蛋白A IgA/(μg/mg prot) | 16.73c | 17.01bc | 18.18abc | 17.63bc | 18.66abc | 18.44abc | 18.93ab | 19.95a | 0.259 | 0.037 |
| 免疫球蛋白G IgG/(μg/mg prot) | 3.76 | 3.76 | 3.63 | 3.97 | 3.77 | 3.70 | 3.64 | 3.78 | 0.034 | 0.244 |
| 免疫球蛋白M IgM/(μg/mg prot) | 84.34b | 86.62b | 84.52b | 85.09b | 98.05ab | 91.96ab | 92.88ab | 102.42a | 1.673 | 0.029 |
| 白细胞介素-1β IL-1β/(pg/mg prot) | 20.77a | 19.64ab | 20.81a | 20.81a | 19.88ab | 17.80b | 18.40ab | 17.38b | 0.339 | 0.034 |
| 白细胞介素-2 IL-2/(pg/mg prot) | 45.14a | 40.51a | 43.06a | 41.89a | 42.75a | 33.01b | 33.57b | 34.99b | 0.901 | <0.001 |
| 白细胞介素-4 IL-4/(pg/mg prot) | 37.42b | 37.82b | 37.99b | 39.82ab | 44.65a | 39.35b | 40.61ab | 41.47ab | 0.618 | 0.045 |
2.5 3种蒿属植物水提物及其组合对蛋鸡脾脏免疫相关基因mRNA相对表达量的影响
表8 3种蒿属植物水提物及其组合对蛋鸡脾脏免疫相关基因mRNA的相对表达量的影响Table 8 Effects of aqueous extracts from three Artemisia species and their combinations on relative expression levels of immune-related gene mRNA in spleen of laying hens |
| 项目 Items | 组别Groups | 均值标准误 SEM | P值 P-value | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CON | AA | AO | AL | AA+AO | AA+AL | AO+AL | AA+AO+AL | |||
| 白细胞介素-1β IL-1β | 1.00a | 0.85b | 0.86b | 0.87ab | 0.86b | 0.80b | 0.79b | 0.79b | 0.018 | 0.041 |
| 白细胞介素-6 IL-6 | 1.00a | 0.81b | 0.87b | 0.81b | 0.79b | 0.84b | 0.74b | 0.76b | 0.019 | <0.001 |
| 核因子-κB p65亚基NF-κB p65 | 1.00a | 0.85abc | 0.95ab | 0.85abc | 0.77bc | 0.78bc | 0.77bc | 0.71c | 0.023 | 0.015 |
| Toll样受体4 TLR4 | 1.00a | 0.98a | 0.96a | 0.997a | 0.89ab | 0.86ab | 0.77b | 0.72b | 0.025 | <0.001 |
| 核因子-κB抑制蛋白激酶β亚基 IKKβ | 1.00 | 1.05 | 1.06 | 1.10 | 1.09 | 1.09 | 0.98 | 0.93 | 0.029 | 0.877 |
| 核因子-κB抑制蛋白α IκBα | 1.00a | 1.00a | 1.02a | 0.96ab | 0.82ab | 0.86ab | 0.79b | 0.78b | 0.025 | 0.026 |
