1 材料与方法
1.1 试验材料
1.2 试验设计
表1 基础饲粮组成及营养水平(饲喂基础)Table 1 Composition and nutrient levels of the basal diet (as-fed basis) % |
| 项目Items | 含量Content |
|---|---|
| 原料Ingredients | |
| 玉米Corn | 62.06 |
| 豆粕Soybean meal (43%) | 25.55 |
| 大豆油Soybean oil | 1.00 |
| 碳酸钙CaCO3 | 9.50 |
| 磷酸氢钙CaHPO4 | 1.00 |
| L-赖氨酸盐酸盐L-Lys·HCl | 0.05 |
| DL-蛋氨酸DL-Met | 0.20 |
| 苏氨酸Thr | 0.02 |
| 碳酸氢钠NaHCO3 | 0.10 |
| 氯化钠NaCl | 0.25 |
| 氯化胆碱Choline chloride (50%) | 0.10 |
| 维生素和矿物质预混料 Vitamin and mineral premix1) | 0.17 |
| 合计Total | 100.00 |
| 营养水平Nutrient levels2) | |
| 代谢能ME/(MJ/kg) | 11.40 |
| 粗蛋白质CP | 16.12 |
| 钙Ca | 3.96 |
| 总磷TP | 0.46 |
| 可消化赖氨酸DLys | 0.76 |
| 可消化蛋氨酸DMet | 0.42 |
| 可消化苏氨酸DThr | 0.52 |
| 可消化色氨酸DTrp | 0.22 |
1)预混料为每千克饲粮提供The premix provides the following per kg of the diet:VA 8 000 IU,VD3 2 000 IU,VE 20 IU,VK3 3.2 mg,VB1 1.2 mg,VB2 6.4 mg,VB6 4.0 mg,VB12 0.2 mg,叶酸 folic acid 1 mg,烟酰胺nicotinamide 40.0 mg,泛酸 pantothenic acid 12.0 mg,生物素 biotin 1.11 mg,Fe (FeSO4·H2O) 60.0 mg,Cu (CuSO4·5H2O) 8.0 mg,Mn (MnSO4·H2O) 60.0 mg,Zn (ZnSO4·H2O) 80.0 mg,Se (Na2SeO3) 0.30 mg,I (KI) 0.35 mg。2)代谢能为计算值,其余为实测值。ME is a calculated value, while the others are measured values. |
1.3 饲养管理
1.4 指标测定
1.4.1 饲粮营养成分
1.4.2 生产性能
1.4.3 蛋品质
1.4.4 血清生化指标
1.4.5 血清和输卵管抗氧化指标
1.4.6 血清和输卵管炎性细胞因子
1.5 数据统计分析
2 结果
2.1 HC对蛋鸡生产性能和蛋品质的影响(饲养阶段)
表2 HC对蛋鸡生产性能的影响Table 2 Effects of HC on performance of laying hens (n=12) |
| 项目 Items | 产蛋率 Laying rate/% | 平均蛋重 Average egg weight/g | 不合格蛋率 Percentage of unqualified eggs/% | 平均日采食量 ADFI/g | 料蛋比 F/E |
|---|---|---|---|---|---|
| 第1~4周Weeks 1 to 4 | |||||
| CON组CON group | 89.33 | 62.95 | 4.83 | 118.49 | 2.12 |
| HC组HC group | 89.91 | 62.71 | 3.17 | 115.82 | 2.06 |
| 均值标准误SEM | 1.853 | 0.343 | 0.910 | 1.127 | 0.041 |
| P值P-value | 0.826 | 0.635 | 0.217 | 0.116 | 0.305 |
| 第5~8周Weeks 5 to 8 | |||||
| CON组CON group | 88.21 | 62.81 | 5.98 | 119.14 | 2.16 |
| HC组HC group | 90.93 | 62.60 | 3.47 | 115.97 | 2.04 |
| 均值标准误SEM | 1.520 | 0.330 | 1.167 | 0.874 | 0.032 |
| P值P-value | 0.225 | 0.651 | 0.151 | 0.023 | 0.022 |
| 第1~8周Weeks 1 to 8 | |||||
| CON组CON group | 88.76 | 62.88 | 5.41 | 118.82 | 2.13 |
| HC组HC group | 90.42 | 62.65 | 3.32 | 115.86 | 2.05 |
| 均值标准误SEM | 1.526 | 0.329 | 0.977 | 0.918 | 0.032 |
| P值P-value | 0.456 | 0.635 | 0.154 | 0.041 | 0.080 |
P<0.05表示差异显著。下表同。 | |
P<0.05 mean significant difference. The same as below. |
表3 HC对蛋鸡蛋品质的影响Table 3 Effects of HC on egg quality of laying hens (n=32) |
| 项目 Items | 蛋壳强度 Eggshell strength/(kg/cm2) | 蛋壳厚度 Eggshell thickness/mm | 暗斑分值 Dark-spotted score | 蛋白高度 Albumen height/mm | 哈氏单位 Haugh unit |
|---|---|---|---|---|---|
| 第4周Week 4 | |||||
| CON组CON group | 3.96 | 0.37 | 2.45 | 8.25 | 89.41 |
| HC组HC group | 4.00 | 0.37 | 2.06 | 8.10 | 89.15 |
| 均值标准误SEM | 0.091 | 0.003 | 0.085 | 0.116 | 0.681 |
| P值P-value | 0.802 | 0.997 | 0.006 | 0.383 | 0.787 |
| 第8周Week 8 | |||||
| CON组CON group | 3.84 | 0.37 | 2.24 | 7.75 | 87.83 |
| HC组HC group | 4.04 | 0.37 | 1.97 | 8.12 | 89.29 |
| 均值标准误SEM | 0.066 | 0.003 | 0.118 | 0.193 | 1.013 |
| P值P-value | 0.041 | 0.802 | 0.136 | 0.201 | 0.323 |
2.2 HC对蛋鸡血清抗氧化和生化指标的影响(饲养阶段)
表4 HC对蛋鸡血清抗氧化和生化指标的影响Table 4 Effects of HC on antioxidant and biochemical indexes in serum of laying hens (n=10) |
| 项目 Items | 还原型谷胱甘肽 GSH/(μmol/L) | 碱性磷酸酶 ALP/(U/L) | 丙氨酸转氨酶 ALT/(U/L) | 天冬氨酸转氨酶 AST/(U/L) |
|---|---|---|---|---|
| CON组CON group | 0.17 | 139.38 | 18.49 | 178.53 |
| HC组HC group | 0.66 | 108.49 | 21.56 | 150.52 |
| 均值标准误SEM | 0.142 | 10.107 | 0.901 | 6.736 |
| P值P-value | 0.032 | 0.047 | 0.034 | 0.011 |
2.3 HC对LPS+OCR攻毒蛋鸡血清生化指标和炎性细胞因子的影响(攻毒阶段)
表5 HC对LPS+OCR攻毒蛋鸡血清生化指标和炎性细胞因子的影响Table 5 Effects of HC on biochemical indexes and inflammatory cytokines in serum of laying hens challenged with LPS+OCR (n=4) |
| 项目 Items | 碱性磷酸酶 ALP/(U/L) | 丙氨酸 转氨酶 ALT/(U/L) | 天冬氨酸 转氨酶 AST/(U/L) | 白细胞 介素-1β IL-1β/(pg/mL) | 白细胞 介素-6 IL-6/(pg/mL) | 肿瘤坏 死因子-α TNF-α/(pg/mL) |
|---|---|---|---|---|---|---|
| 处理Treatments | ||||||
| LPS+OCR(-)+CON | 529.50 | 14.54 | 222.20 | 44.91 | 19.13 | 55.76b |
| LPS+OCR(-)+HC | 384.75 | 16.73 | 163.69 | 40.63 | 17.53 | 61.40b |
| LPS+OCR(+)+CON | 809.25 | 16.19 | 244.70 | 74.71 | 31.18 | 82.30a |
| LPS+OCR(+)+HC | 697.00 | 12.82 | 221.67 | 60.12 | 29.04 | 77.12a |
| 均值标准误SEM | 148.296 | 1.678 | 14.368 | 3.652 | 1.405 | 2.099 |
| LPS+OCR攻毒LPS+OCR challenge | ||||||
| - | 457.13 | 15.63 | 192.94 | 42.77 | 18.33 | 58.58 |
| + | 753.13 | 14.50 | 233.18 | 67.42 | 30.11 | 79.71 |
| 饲粮Diet | ||||||
| CON | 669.38 | 15.36 | 233.45 | 59.81 | 25.15 | 69.03 |
| HC | 540.88 | 14.77 | 192.68 | 50.38 | 23.29 | 69.26 |
| 主效应P值P-value of main effects | ||||||
| LPS+OCR攻毒 LPS+OCR challenge | 0.069 | 0.513 | 0.016 | <0.001 | <0.001 | <0.001 |
| 饲粮Diet | 0.403 | 0.731 | 0.015 | 0.024 | 0.210 | 0.914 |
| LPS+OCR攻毒×饲粮 LPS+OCR challenge×diet | 0.915 | 0.124 | 0.241 | 0.183 | 0.851 | 0.024 |
-:攻毒;+:不攻毒;CON:基础饲粮;HC:添加HC饲粮。同列数据肩标不同小写字母表示差异显著(P<0.05)。下表同。 | |
-: challenge; +: no challenge; CON: basal diet; HC: HC-supplemented diet. Values in the same column with different small letter superscripts mean significant difference (P<0.05). The same as below. |
2.4 HC对LPS+OCR攻毒蛋鸡膨大部抗氧化指标和炎性细胞因子的影响(攻毒阶段)
表6 HC对LPS+OCR攻毒蛋鸡膨大部抗氧化指标和炎性细胞因子的影响Table 6 Effects of HC on antioxidant indexes and inflammatory cytokines in magnum of laying hens challenged with LPS+OCR (n=4) |
| 项目 Items | 还原型 谷胱甘肽 GSH/ (μmol/g prot) | 白细胞 介素-1β IL-1β/ (pg/g prot) | 白细胞 介素-6 IL-6/ (pg/g prot) | 肿瘤坏 死因子-α TNF-α/ (pg/g prot) | 白细胞 介素-4 IL-4/ (pg/g prot) | 白细胞 介素-10 IL-10/ (pg/g prot) | γ-干扰素 IFN-γ/ (pg/g prot) |
|---|---|---|---|---|---|---|---|
| 处理Treatments | |||||||
| LPS+OCR(-)+CON | 29.62 | 52.82c | 17.53c | 48.79c | 44.50a | 70.27 | 214.22c |
| LPS+OCR(-)+HC | 23.36 | 47.19c | 26.23b | 57.41c | 41.16ab | 84.52 | 238.43b |
| LPS+OCR(+)+CON | 11.37 | 87.80a | 35.71a | 98.63a | 32.45c | 52.16 | 321.31a |
| LPS+OCR(+)+HC | 13.59 | 66.71b | 19.42c | 73.53b | 38.99b | 64.52 | 258.79b |
| 均值标准误SEM | 5.722 | 3.278 | 1.426 | 4.264 | 1.246 | 1.990 | 7.313 |
| LPS+OCR攻毒LPS+OCR challenge | |||||||
| - | 26.49 | 50.00 | 21.88 | 53.10 | 42.83 | 77.39 | 226.32 |
| + | 12.48 | 77.25 | 27.57 | 86.08 | 35.72 | 58.34 | 290.05 |
| 饲粮Diet | |||||||
| CON | 20.49 | 70.31 | 26.62 | 73.71 | 38.48 | 61.21 | 267.76 |
| HC | 18.47 | 56.95 | 22.83 | 65.47 | 40.07 | 74.52 | 248.61 |
| 主效应P值P-value of main effects | |||||||
| LPS+OCR攻毒 LPS+OCR challenge | 0.031 | <0.001 | 0.002 | <0.001 | <0.001 | <0.001 | <0.001 |
| 饲粮Diet | 0.730 | 0.002 | 0.021 | 0.077 | 0.225 | <0.001 | 0.022 |
| LPS+OCR攻毒×饲粮 LPS+OCR challenge×diet | 0.473 | 0.036 | <0.001 | 0.002 | 0.002 | 0.644 | <0.001 |
2.5 HC对LPS+OCR攻毒蛋鸡峡部抗氧化指标和炎性细胞因子的影响(攻毒阶段)
表7 HC对LPS+OCR攻毒蛋鸡峡部抗氧化指标和炎性细胞因子的影响Table 7 Effects of HC on antioxidant indexes and inflammatory cytokines in isthmus of laying hens hallenged with LPS+OCR (n=4) |
| 项目 Items | 还原型 谷胱甘肽 GSH/ (μmol/g prot) | 白细胞 介素-1β IL-1β / (pg/g prot) | 白细胞 介素-6 IL-6/ (pg/g prot) | 肿瘤坏 死因子-α TNF-α/ (pg/g prot) | 白细胞 介素-4 IL-4/ (pg/g prot) | 白细胞 介素-10 IL-10/ (pg/g prot) | γ-干扰素 IFN-γ/ (pg/g prot) |
|---|---|---|---|---|---|---|---|
| 处理Treatments | |||||||
| LPS+OCR(-)+CON | 238.23 | 50.70c | 22.68 | 64.87 | 44.45a | 75.89a | 203.84d |
| LPS+OCR(-)+HC | 261.53 | 56.14bc | 18.21 | 50.98 | 35.59b | 62.47b | 263.88b |
| LPS+OCR(+)+CON | 415.71 | 80.88a | 32.95 | 91.15 | 30.52c | 50.18c | 335.16a |
| LPS+OCR(+)+HC | 294.17 | 65.89b | 26.24 | 82.96 | 37.21b | 67.43b | 228.84c |
| 均值标准误SEM | 82.692 | 3.923 | 1.265 | 4.640 | 1.193 | 1.976 | 7.770 |
| LPS+OCR攻毒LPS+OCR challenge | |||||||
| - | 249.88 | 53.42 | 20.44 | 57.92 | 40.02 | 69.18 | 233.86 |
| + | 354.94 | 73.39 | 29.59 | 87.05 | 33.87 | 58.81 | 282.00 |
| 饲粮Diet | |||||||
| CON | 326.97 | 65.79 | 27.81 | 78.01 | 37.48 | 63.04 | 269.50 |
| HC | 277.85 | 61.02 | 22.22 | 66.97 | 36.40 | 64.95 | 246.36 |
| 主效应P值P-value of main effects | |||||||
| LPS+OCR攻毒 LPS+OCR challenge | 0.228 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 |
| 饲粮Diet | 0.564 | 0.247 | 0.001 | 0.035 | 0.381 | 0.352 | 0.012 |
| LPS+OCR攻毒×饲粮 LPS+OCR challenge×diet | 0.398 | 0.023 | 0.395 | 0.550 | <0.001 | <0.001 | <0.001 |
2.6 HC对LPS+OCR攻毒蛋鸡子宫部抗氧化指标和炎性细胞因子的影响(攻毒阶段)
表8 HC对LPS+OCR攻毒蛋鸡子宫部抗氧化指标和炎性细胞因子的影响Table 8 Effects of HC on antioxidant indexes and inflammatory cytokines in uterus of laying hens hallenged with LPS+OCR (n=4) |
| 项目 Items | 还原型 谷胱甘肽 GSH / (μmol/g prot) | 白细胞 介素-1β IL-1β/ (pg/g prot) | 白细胞 介素-6 IL-6/ (pg/g prot) | 肿瘤坏 死因子-α TNF-α / (pg/g prot) | 白细胞 介素-4 IL-4/ (pg/g prot) | 白细胞 介素-10 IL-10/ (pg/g prot) | γ-干扰素 IFN-γ/ (pg/g prot) |
|---|---|---|---|---|---|---|---|
| 处理Treatments | |||||||
| LPS+OCR(-)+CON | 606.54 | 59.67 | 28.91b | 45.67c | 37.45 | 63.99 | 227.46c |
| LPS+OCR(-)+HC | 600.69 | 55.89 | 21.96c | 65.42b | 45.65 | 81.85 | 238.11c |
| LPS+OCR(+)+CON | 398.85 | 81.85 | 36.69a | 85.21a | 27.73 | 51.11 | 315.38a |
| LPS+OCR(+)+HC | 509.86 | 66.22 | 20.99c | 56.24bc | 37.71 | 69.09 | 274.63b |
| 均值标准误SEM | 70.039 | 3.146 | 1.450 | 4.515 | 1.439 | 2.199 | 10.069 |
| LPS+OCR攻毒LPS+OCR challenge | |||||||
| - | 603.61 | 57.78 | 25.43 | 55.55 | 41.55 | 72.92 | 232.78 |
| + | 454.36 | 74.03 | 28.84 | 70.72 | 32.72 | 60.10 | 295.01 |
| 饲粮Diet | |||||||
| CON | 502.69 | 70.76 | 32.80 | 65.44 | 32.59 | 57.55 | 271.42 |
| HC | 555.27 | 61.05 | 21.47 | 60.83 | 41.68 | 75.47 | 256.37 |
| 主效应P值P-value of main effects | |||||||
| LPS+OCR攻毒 LPS+OCR challenge | 0.054 | <0.001 | 0.037 | 0.006 | <0.001 | <0.001 | <0.001 |
| 饲粮Diet | 0.467 | 0.009 | <0.001 | 0.328 | <0.001 | <0.001 | 0.161 |
| LPS+OCR攻毒×饲粮 LPS+OCR challenge×diet | 0.420 | 0.084 | 0.011 | <0.001 | 0.548 | 0.978 | 0.025 |

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