1 材料与方法
1.1 试验设计
表1 基础饲粮组成及营养水平(风干基础)Table 1 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 | 59.00 | 代谢能ME/(MJ/kg) | 11.35 | |
| 豆粕Soybean meal | 24.50 | 粗蛋白质CP | 16.43 | |
| 大豆油Soybean oil | 2.50 | 钙Ca | 2.25 | |
| 麦麸Wheat bran | 3.00 | 总磷TP | 0.34 | |
| 石粉Limestone | 6.00 | 赖氨酸Lys | 0.82 | |
| 预混料Premix1) | 5.00 | 色氨酸Trp | 0.19 | |
| 合计Total | 100.00 | 蛋氨酸Met | 0.38 |
1)预混料为每千克饲粮提供 The premix provided the following per kg of the diet:VA 10 000 IU,VB6 6 mg,VB12 0.04 mg,VD3 4 000 IU,VE 28 mg,VK3 3 mg,VB2 10 mg,生物素 biotin 0.3 mg,D-泛酸D-pantothenic acid 60 mg,叶酸 folic acid 1.0 mg,Fe 60 mg,Cu 10 mg,Mn 90 mg,Zn 80 mg,I 1.0 mg,Se 0.3 mg。 2)粗蛋白质、钙和总磷为测定值,参考标准分别为GB/T 6432—2018、GB/T 6436—2018和GB/T 6437—2018;其余为计算值,依据NY/T 33—2004计算得出。CP, Ca and TP were determined values, and the reference standards were GB/T 6432—2018, GB/T 6436—2018 and GB/T 6437—2018, respectively; the rest were calculated values, and they were calculated according to NY/T 33—2004. |
1.2 饲养管理
1.3 样品采集与指标测定
1.3.1 生产性能
1.3.2 蛋品质
1.3.3 蛋中花青素含量测定
1.3.4 血浆生化、免疫和抗氧化指标测定
1.3.5 肠道组织形态
1.4 数据处理与分析
2 结果与分析
2.1 花青素对产蛋后期太行鸡生产性能的影响
表2 花青素对产蛋后期太行鸡生产性能的影响Table 2 Effects of anthocyanins on performance of Taihang chickens in late laying stage |
| 项目 Items | 组别Groups | P值 P-value | |||
|---|---|---|---|---|---|
| 对照CON | Ⅰ | Ⅱ | Ⅲ | ||
| 产蛋率Laying rate/% | |||||
| 第1~6周Weeks 1 to 6 | 39.43±3.56b | 41.63±1.60a | 139.24±1.53b | 43.39±1.71a | <0.000 1 |
| 第7~12周Weeks 7 to 12 | 41.07±3.51ab | 41.76±4.58ab | 38.33±2.86b | 43.28±3.51a | 0.046 7 |
| 第1~12周Weeks 1 to 12 | 40.24±2.81bc | 41.66±2.69ab | 38.78±1.72c | 43.31±2.19a | 0.001 4 |
| 平均蛋重Average egg weight/g | |||||
| 第1~6周Weeks 1 to 6 | 51.10±0.51a | 49.86±0.73b | 50.70±1.01a | 49.82±0.25b | 0.001 4 |
| 第7~12周Weeks 7 to 12 | 50.27±1.03 | 50.77±1.04 | 50.96±0.62 | 49.96±2.40 | 0.362 2 |
| 第1~12周Weeks 1 to 12 | 50.69±0.89a | 50.32±0.98ab | 50.83±0.81a | 49.89±1.63b | 0.002 2 |
| 平均日采食量ADFI/g | |||||
| 第1~6周Weeks 1 to 6 | 79.05±2.73b | 78.73±1.41b | 83.44±2.55a | 78.35±4.34b | 0.001 0 |
| 第7~12周Weeks 7 to 12 | 79.26±5.49b | 80.31±3.03ab | 84.84±4.46a | 80.57±9.14ab | 0.031 7 |
| 第1~12周Weeks 1 to 12 | 79.15±4.23b | 79.52±2.44b | 84.14±3.61a | 79.46±7.06b | 0.000 9 |
| 料蛋比Feed-egg ratio | |||||
| 第1~6周Weeks 1 to 6 | 3.57±0.39 | 3.48±0.44 | 3.49±0.33 | 3.27±0.42 | 0.391 6 |
| 第7~12周Weeks 7 to 12 | 4.31±0.56b | 3.86±0.50bc | 4.81±0.49a | 3.55±0.36c | <0.000 1 |
| 第1~12周Weeks 1 to 12 | 3.99±0.56b | 3.82±0.57b | 4.33±0.74a | 3.56±0.45c | <0.000 1 |
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 花青素对产蛋后期太行鸡蛋品质的影响
表3 花青素对产蛋后期太行鸡蛋品质的影响Table 3 Effects of anthocyanins on egg quality of Taihang chickens in late laying stage |
| 项目 Items | 组别Groups | P值 P-value | |||
|---|---|---|---|---|---|
| 对照CON | Ⅰ | Ⅱ | Ⅲ | ||
| 蛋形指数Egg shape index | |||||
| 第6周Week 6 | 1.32±0.04ab | 1.33±0.03a | 1.29±0.03ab | 1.29±0.06b | 0.034 9 |
| 第12周Week 12 | 1.32±0.05ab | 1.35±0.04a | 1.31±0.05b | 1.33±0.08ab | 0.026 2 |
| 蛋重Egg weight/g | |||||
| 第6周Week 6 | 48.65±2.48ab | 49.76±2.52a | 50.44±3.53a | 46.01±3.03b | 0.014 9 |
| 第12周Week 12 | 50.91±3.90 | 51.61±3.71 | 51.17±3.14 | 51.84±3.76 | 0.560 3 |
| 蛋壳强度Eggshell strength/N | |||||
| 第6周Week 6 | 31.65±6.27ab | 36.35±6.73a | 29.31±6.94b | 33.14±2.21ab | 0.008 4 |
| 第12周Week 12 | 37.42±7.65 | 36.18±8.03 | 31.81±11.44 | 32.47±8.95 | 0.320 8 |
| 哈氏单位Haugh unit | |||||
| 第6周Week 6 | 62.10±9.65 | 62.85±8.72 | 59.92±6.49 | 65.25±6.44 | 0.397 7 |
| 第12周Week 12 | 62.77±15.42 | 64.22±13.80 | 63.26±11.95 | 61.62±15.23 | 0.756 8 |
| 蛋黄颜色Egg yolk color | |||||
| 第6周Week 6 | 10.55±0.51 | 10.55±0.69 | 10.25±0.44 | 10.50±0.61 | 0.480 6 |
| 第12周Week 12 | 10.65±0.67 | 10.60±0.75 | 10.40±0.60 | 10.70±0.80 | 0.571 0 |
| 蛋黄重Yolk weight/g | |||||
| 第6周Week 6 | 15.95±0.74 | 15.64±1.87 | 16.10±1.73 | 15.44±1.38 | 0.766 5 |
| 第12周Week 12 | 17.06±2.36 | 17.40±1.29 | 16.77±2.56 | 17.13±1.34 | 0.298 0 |
| 蛋黄比率Yolk ratio | |||||
| 第6周Week 6 | 0.33±0.01 | 0.31±0.03 | 0.32±0.04 | 0.34±0.02 | 0.312 1 |
| 第12周Week 12 | 0.34±0.04 | 0.34±0.02 | 0.33±0.05 | 0.33±0.02 | 0.481 4 |
| 蛋壳厚度Eggshell thickness/mm | |||||
| 第6周Week 6 | 0.34±0.03a | 0.34±0.04a | 0.30±0.04b | 0.31±0.03b | 0.008 7 |
| 第12周Week 12 | 0.34±0.04 | 0.35±0.03 | 0.34±0.04 | 0.34±0.03 | 0.883 0 |
2.3 花青素对产蛋后期太行鸡蛋中花青素含量的影响
表4 花青素对产蛋后期太行鸡蛋中花青素含量的影响Table 4 Effects of anthocyanins on anthocyanin content in eggs of Taihang chickens in late laying stage nmol/g |
| 项目 Item | 组别Groups | P值 P-value | |||
|---|---|---|---|---|---|
| 对照CON | Ⅰ | Ⅱ | Ⅲ | ||
| 花青素Anthocyanin | 15.74±1.96b | 478.4±126.78a | 507.94±101.02a | 428.09±153.86a | <0.000 1 |
2.4 花青素对产蛋后期太行鸡血浆生化指标的影响
表5 花青素对产蛋后期太行鸡血浆生化指标的影响Table 5 Effects of anthocyanins on plasma biochemical indicators of Taihang chickens in late laying stage |
| 项目 Items | 组别Groups | P值 P-value | |||
|---|---|---|---|---|---|
| 对照CON | Ⅰ | Ⅱ | Ⅲ | ||
| 白蛋白ALB/(mg/mL) | 24.88±2.32d | 37.55±2.81a | 35.75±2.14b | 27.52±1.94c | <0.000 1 |
| 低密度脂蛋白胆固醇 LDL-C/(mmol/L) | 13.32±0.76a | 9.69±0.74b | 6.62±0.76c | 4.62±0.74d | <0.000 1 |
| 高密度脂蛋白胆固醇 HDL-C/(μmol/L) | 663.56±107.49d | 1 250.62±117.18c | 1 799.42±157.84b | 1 987.20±146.38a | <0.000 1 |
| 总蛋白TP/(g/L) | 42.32±8.26b | 42.39±7.29b | 47.68±4.69ab | 51.66±10.02a | 0.029 6 |
| 总胆红素TBIL/(μmol/L) | 15.81±4.44 | 17.64±4.93 | 15.98±2.14 | 14.73±4.17 | 0.518 0 |
| 直接胆红素DBIL/(μmol/L) | 5.95±2.07 | 7.16±2.45 | 6.34±0.97 | 6.50±1.74 | 0.591 5 |
| 总胆固醇TC/(mmol/L) | 2.58±0.93b | 2.68±0.96b | 3.14±0.78ab | 3.57±1.17a | 0.008 1 |
2.5 花青素对产蛋后期太行鸡血浆免疫及抗氧化指标的影响
表6 花青素对产蛋后期太行鸡血浆免疫及抗氧化指标的影响Table 6 Effects of anthocyanins on plasma immune and antioxidant indicators of Taihang chickens in late laying stage |
| 项目 Items | 组别Groups | P值 P-value | |||
|---|---|---|---|---|---|
| 对照CON | Ⅰ | Ⅱ | Ⅲ | ||
| 丙二醛MDA/(nmol/mL) | 14.46±1.51 | 15.20±2.78 | 15.14±2.46 | 15.50±2.14 | 0.469 1 |
| 过氧化氢酶CAT/(U/mL) | 565.23±106.32b | 592.33±104.74b | 592.33±94.63b | 708.13±124.72a | 0.001 3 |
| 超氧化物歧化酶SOD/(U/mL) | 27.56±6.20 | 28.40±5.17 | 28.31±4.74 | 30.54±4.62 | 0.311 4 |
| 谷胱甘肽过氧化物酶 GSH-Px(mIU/mL) | 55.52±7.79b | 59.57±7.23ab | 57.97±10.43b | 63.91±5.08a | 0.011 8 |
| 总抗氧化能力T-AOC/(U/L) | 563.17±162.36b | 626.24±130.93ab | 616.31±139.31ab | 694.42±126.84a | 0.007 6 |
| 免疫球蛋白A IgA/(μg/mL) | 64.82±8.25b | 70.41±10.92b | 79.59±11.67a | 84.48±11.99a | <0.000 1 |
| 免疫球蛋白G IgG/(μg/mL) | 271.10±50.78 | 301.84±84.12 | 288.12±84.69 | 313.54±83.77 | 0.221 4 |
| 免疫球蛋白M IgM/(μg/mL) | 24.61±4.29 | 26.17±4.55 | 26.67±4.37 | 27.72±4.62 | 0.210 0 |
2.6 花青素对产蛋后期太行鸡肠道组织形态的影响
表7 花青素对产蛋后期太行鸡肠道组织形态的影响Table 7 Effects of anthocyanins on intestinal tissue morphology of Taihang chickens in late laying stage |
| 项目 Items | 组别Groups | P值 P-value | |||
|---|---|---|---|---|---|
| 对照CON | Ⅰ | Ⅱ | Ⅲ | ||
| 十二指肠Duodenum | |||||
| 绒毛高度Villus height/μm | 1 085.54±335.80b | 1 210.08±233.81b | 1 466.19±301.96a | 1 168.21±175.45b | <0.000 1 |
| 隐窝深度Crypt depth/μm | 135.03±30.37 | 122.83±54.01 | 113.37±37.42 | 112.40±48.88 | 0.133 1 |
| 绒隐比V/C | 8.44±3.17c | 11.06±3.65b | 14.45±5.99a | 12.21±4.97ab | <0.000 1 |
| 回肠Ileum | |||||
| 绒毛高度Villus height/μm | 791.31±130.40c | 1 086.55±122.40a | 626.31±59.18d | 903.44±42.28b | <0.000 1 |
| 隐窝深度Crypt depth/μm | 140.61±27.16a | 87.06±11.43b | 78.95±19.55b | 92.80±28.89b | <0.000 1 |
| 绒隐比V/C | 5.84±1.64c | 12.66±2.07a | 8.41±2.34b | 10.62±3.23ab | <0.000 1 |
| 空肠Jejunum | |||||
| 绒毛高度Villus height/μm | 1 010.57±197.31ab | 1 037.12±133.45ab | 967.10±118.55b | 1 123.51±126.62a | <0.000 1 |
| 隐窝深度Crypt depth/μm | 153.16±35.92a | 109.24±22.92b | 85.67±15.87b | 102.18±24.46b | <0.000 1 |
| 绒隐比V/C | 7.06±2.49b | 9.80±1.98a | 11.61±2.46a | 11.67±3.38a | 0.001 4 |

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