1 材料与方法
1.1 试验材料
1.2 试验设计与试验饲粮
表1 基础饲粮组成及营养水平(风干基础)Table 1 Composition and nutrient levels of basal diets (air-dry basis) % |
| 项目 Items | 含量Content | |
|---|---|---|
| 1~21日龄 1 to 21 days of age | 22~70日龄 22 to 70 days of age | |
| 原料Ingredients | ||
| 玉米Corn | 55.00 | 58.00 |
| 豆粕Soybean meal | 34.00 | 30.00 |
| 玉米蛋白粉Corn gluten meal | 4.80 | 5.00 |
| 大豆油Soybean oil | 2.40 | 3.00 |
| 氯化钠NaCl | 0.30 | 0.30 |
| 石粉Limestone | 1.20 | 1.50 |
| 磷酸氢钙CaHPO4 | 1.30 | 1.20 |
| 预混料Premix1) | 1.00 | 1.00 |
| 合计Total | 100.00 | 100.00 |
| 营养水平Nutrient levels2) | ||
| 代谢能ME/(MJ/kg) | 12.32 | 12.77 |
| 粗蛋白质CP | 21.56 | 20.48 |
| 赖氨酸Lys | 1.20 | 1.13 |
| 蛋氨酸Met | 0.48 | 0.51 |
| 蛋氨酸+半胱氨酸Met+Cys | 0.88 | 0.84 |
| 钙Ca | 1.12 | 1.02 |
| 总磷TP | 0.49 | 0.64 |
1)预混料为每千克饲粮提供 The premix provided the following per kg of diets:VA 15 000 IU,VD 3 300 IU,VB1 1.8 mg,VB2 3.6 mg,VB6 3.5 mg,VB12 0.01 mg,VE 10 IU,VK 0.5 mg,烟酸 nicotinic acid 35 mg,泛酸钙 calcium pantothenate 10 mg,叶酸 folie acid 0.55 mg,生物素 biotin 0.15 mg,氯化胆碱 choline chloride 1 000 mg,Fe 80 mg,Cu 8 mg,Zn 60 mg,Mn 80 mg,I 0.35 mg,Se 0.15 mg。 2)代谢能为计算值,参照《中国饲料成分及营养价值表(2021年第32版)》进行计算,其余为实测值。ME was a calculated value referred to Tables of Feed Composition and Nutritive Values in China (thirty-second edition,2021), while the others were measured values. |
1.3 饲养管理
1.4 测定指标与方法
1.4.1 饲粮营养水平
1.4.2 生长性能
1.4.3 体尺性能
1.4.4 屠宰性能
1.4.5 血清生化指标
1.5 免疫机能
1.5.1 免疫器官指数
1.5.2 血清免疫球蛋白和肿瘤坏死因子-α(TNF-α)含量
1.5.3 肠道免疫基因表达
表2 引物序列Table 2 Primer sequence |
| 基因 Genes | 登录号 Accession number | 引物序列 Primer sequence (5'—3') |
|---|---|---|
| 肿瘤坏死因子-α TNF-α | XM 015294125. 2 | F:TCAGGACAGCCTATGCCAACAAG R:GCCACCACACGACAGCCAAG |
| 白细胞介素-8 IL-8 | NM 205498.1 | F:GCTGCTCTGTCGCAAGGTAGG R:ACATCTTGAATGGATTTAGGGTGG |
| 白细胞介素-1β IL-1β | NM_204524.2 | F:TCGACATCAACCAGAAGTGC R:GAGCTTGTAGCCCTTGATGC |
| 溶菌酶 LYZ | NM_205281.2 | F:TATGAAGCGTCACGGACTTG R:TTCACGCTCGCTGTTATGTC |
| Toll样受体4 TLR4 | NM_001030693.2 | F:CACAGCTCTGGATTTCAGCA R:TCCGCAGTAGATCCTGCTTT |
1.6 数据统计与分析
2 结果与分析
2.1 花椒粉对黄羽肉鸡生长性能的影响
表3 花椒粉对黄羽肉鸡生长性能的影响Table 3 Effects of Zanthoxylum bungeanum powder on growth performance of yellow-feathered broilers |
| 项目 Items | 花椒粉添加水平Zanthoxylum bungeanum powder supplemental levels/% | P值 P-value | ||||
|---|---|---|---|---|---|---|
| 0(对照组 Control group) | 0.2 | 0.4 | 0.6 | 0.8 | ||
| 平均日采食量ADFI/g | 65.43±0.41a | 65.55±0.22a | 64.91±0.13a | 63.30±0.21b | 60.98±0.16c | <0.001 |
| 平均日增重ADG/g | 21.41±0.25b | 21.76±0.40b | 23.40±0.47a | 21.34±0.30b | 21.23±0.35b | 0.002 |
| 料重比F/G | 3.06±0.02a | 3.02±0.01a | 2.77±0.01d | 2.91±0.01b | 2.82±0.01c | <0.001 |
同行数据肩标不同小写字母表示差异显著(P<0.05),相同或无字母表示差异不显著(P>0.05)。下表同。 | |
In the same row, values with different small letter superscripts mean significant difference (P<0.05), while with the same or no letter superscripts mean no significant difference (P>0.05). The same as below. |
2.2 花椒粉对黄羽肉鸡体尺性能的影响
表4 花椒粉对黄羽肉鸡体尺性能的影响Table 4 Effects of Zanthoxylum bungeanum powder on body size performance of yellow-feathered broilers |
| 项目 Items | 花椒粉添加水平Zanthoxylum bungeanum powder supplemental levels/% | P值 P-value | ||||
|---|---|---|---|---|---|---|
| 0(对照组 Control group) | 0.2 | 0.4 | 0.6 | 0.8 | ||
| 体斜长Body slope length/cm | 21.59±0.22b | 21.93±0.19b | 23.00±0.28a | 21.99±0.19b | 21.88±0.29b | 0.002 |
| 龙骨长Fossil bone length/cm | 10.87±0.16b | 11.05±0.14ab | 11.41±0.13a | 11.09±0.19ab | 11.23±0.13ab | 0.048 |
| 胸深Breast depth/cm | 10.97±0.19 | 10.69±0.16 | 10.87±0.22 | 10.62±0.21 | 10.47±0.16 | 0.367 |
| 胸宽Breast width/cm | 7.86±0.21 | 8.32±0.24 | 8.34±0.19 | 8.16±0.15 | 8.01±0.21 | 0.406 |
| 胫长Tibial length/cm | 9.67±0.09b | 9.52±0.11b | 10.14±0.14a | 9.73±0.11b | 9.53±0.11b | 0.002 |
| 胫围Tibial circumference/cm | 4.95±0.15 | 4.81±0.04 | 5.17±0.08 | 4.87±0.06 | 4.92±0.07 | 0.065 |
2.3 花椒粉对黄羽肉鸡屠宰性能的影响
表5 花椒粉对黄羽肉鸡屠宰性能的影响Table 5 Effects of Zanthoxylum bungeanum powder on slaughter performance of yellow-feathered broilers |
| 项目 Items | 花椒粉添加水平Zanthoxylum bungeanum powder supplemental levels/% | P值 P-value | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0(对照组 Control group) | 0.2 | 0.4 | 0.6 | 0.8 | |||||||
| 活重 Live weight/g | 1 531.50 ±25.12b | 1 540.00 ±21.60b | 1 683.40 ±29.77a | 1 543.40 ±29.67b | 1 507.70 ±11.40b | <0.001 | |||||
| 屠体重 Slaughter weight/g | 1 433.00 ±27.04b | 1 426.50 ±20.78b | 1 554.50 ±26.22a | 1 436.00 ±30.39b | 1 390.50 ±14.42b | <0.001 | |||||
| 屠宰率 Slaughter percentage/% | 93.76 ±0.59 | 92.64 ±0.50 | 92.38 ±0.67 | 93.03 ±0.62 | 92.22 ±0.55 | 0.397 | |||||
| 半净膛重 Semi-eviscerating weight/g | 1 263.22 ±14.86b | 1 260.67 ±25.96b | 1 396.25 ±33.72a | 1 277.89 ±30.44b | 1 256.40 ±10.84b | <0.001 | |||||
| 半净膛率 Semi-eviscerating percentage/% | 88.20 ±1.25 | 88.74 ±1.12 | 90.80 ±0.63 | 88.47 ±0.69 | 90.39 ±0.70 | 0.169 | |||||
| 全净膛重 Eviscerating weight/g | 1 009.44 ±9.51b | 1 018.56 ±23.8b | 1 133.75 ±29.27a | 1 021.78 ±29.70b | 1 005.20 ±12.50b | <0.001 | |||||
| 全净膛率 Eviscerating percentage/% | 80.09 ±0.73 | 80.80 ±1.01 | 81.18 ±0.39 | 79.89 ±0.55 | 79.99 ±0.45 | 0.598 | |||||
| 胸肌重 Breast muscle weight/g | 64.67 ±1.89b | 68.22 ±2.01b | 82.50 ±3.90a | 68.67 ±2.8b | 64.40 ±1.92b | <0.001 | |||||
| 胸肌率 Breast muscle percentage/% | 6.40 ±0.17b | 6.71 ±0.16b | 7.28 ±0.31a | 6.71 ±0.12b | 6.40 ±0.14b | 0.014 | |||||
| 腿肌重 Leg muscle weight/g | 125.67 ±5.27b | 127.22 ±6.18b | 148.75 ±7.72a | 130.33 ±5.53b | 127.40 ±4.70b | 0.049 | |||||
| 腿肌率 Leg muscle Percentage/% | 200.04 ±10.97 | 186.55 ±7.65 | 182.74 ±11.82 | 190.86 ±7.14 | 199.14 ±9.10 | 0.631 | |||||
| 腹脂重 Abdominal fat weight/g | 17.00 ±3.03a | 17.00 ±2.31a | 14.41 ±2.95b | 7.53 ±2.04b | 11.48 ±2.73b | 0.024 | |||||
| 腹脂率 Abdominal fat percentage/% | 13.03 ±2.70a | 14.06 ±2.49a | 9.40 ±1.62b | 5.71 ±1.57b | 9.12 ±2.46b | 0.030 | |||||
2.4 花椒粉对黄羽肉鸡血清生化指标的影响
表6 花椒粉对黄羽肉鸡血清生化指标的影响Table 6 Effects of Zanthoxylum bungeanum powder on serum biochemical indexes of yellow-feathered broilers |
| 项目 Items | 花椒粉添加水平Zanthoxylum bungeanum powder supplemental levels/% | P值 P-value | ||||
|---|---|---|---|---|---|---|
| 0(对照组 Control group) | 0.2 | 0.4 | 0.6 | 0.8 | ||
| 总蛋白TP/(g/L) | 36.91±2.22 | 39.93±1.34 | 40.45±1.40 | 39.31±1.86 | 39.45±1.23 | 0.597 |
| 白蛋白ALB/(g/L) | 11.05±0.61b | 11.78±0.35ab | 12.09±0.30ab | 11.23±0.45ab | 12.53±0.48a | 0.041 |
| 球蛋白GLO/(g/L) | 25.86±1.88 | 28.15±1.33 | 28.36±1.24 | 28.08±1.67 | 26.92±1.23 | 0.724 |
| 白球比A/G | 0.44±0.03 | 0.43±0.02 | 0.43±0.02 | 0.41±0.03 | 0.48±0.03 | 0.522 |
| 甘油三酯TG/(mmol/L) | 0.77±0.08a | 0.36±0.06b | 0.26±0.02b | 0.39±0.04b | 0.40±0.06b | 0.028 |
| 高密度脂蛋白胆固醇 HDL-C/(mmol/L) | 2.13±0.14 | 2.31±0.08 | 2.31±0.05 | 2.05±0.12 | 2.20±0.13 | 0.393 |
| 低密度脂蛋白胆固醇 LDL-C/(mmol/L) | 2.23±0.11 | 2.33±0.11 | 2.41±0.11 | 2.12±0.19 | 2.25±0.14 | 0.639 |
| 尿素氮UN/(mmol/L) | 1.68±0.91 | 0.58±0.14 | 0.64±0.06 | 0.53±0.14 | 0.83±0.15 | 0.310 |
2.5 花椒粉对黄羽肉鸡免疫机能的影响
2.5.1 花椒粉对黄羽肉鸡免疫器官重量和指数的影响
表7 花椒粉对黄羽肉鸡免疫器官重量和指数的影响Table 7 Effects of Zanthoxylum bungeanum powder on immune organ weights and indexes of yellow-feathered broilers |
| 项目 Items | 花椒粉添加水平Zanthoxylum bungeanum powder supplemental levels/% | P值 P-value | ||||
|---|---|---|---|---|---|---|
| 0(对照组 Control group) | 0.2 | 0.4 | 0.6 | 0.8 | ||
| 脾脏重量Spleen weight/g | 3.23±0.38 | 3.26±0.26 | 3.45±0.34 | 3.36±0.24 | 3.43±0.30 | 0.980 |
| 脾脏指数Spleen index/‰ | 1.75±0.25 | 2.12±0.16 | 2.08±0.22 | 2.16±0.15 | 2.28±0.20 | 0.458 |
| 法氏囊重量 Bursa of Fabricius weight/g | 1.03±0.34 | 1.10±0.14 | 1.48±0.44 | 0.76±0.16 | 1.20±0.16 | 0.410 |
| 法氏囊指数 Bursa of Fabricius index/‰ | 0.98±0.35 | 0.71±0.08 | 0.87±0.27 | 0.48±0.10 | 0.80±0.11 | 0.477 |
2.5.2 花椒粉对黄羽肉鸡血清免疫球蛋白和TNF-α含量的影响
表8 花椒粉对黄羽肉鸡血清免疫球蛋白及肿瘤坏死因子-α含量的影响Table 8 Effects of Zanthoxylum bungeanum powder on serum immunoglobulin and tumor necrosis factor-α contents of yellow-feathered broilers |
| 项目 Items | 花椒粉添加水平Zanthoxylum bungeanum powder supplemental levels/% | P值 P-value | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0(对照组 Control group) | 0.2 | 0.4 | 0.6 | 0.8 | |||||||
| 免疫球蛋白A IgA/(ng/mL) | 8 030.3 ±484.39b | 10 060.7 ±649.12a | 9 869.67 ±801.33ab | 9 841.2 ±563.26ab | 8 075.69 ±517.05b | 0.043 | |||||
| 免疫球蛋白G IgG/(μg/mL) | 138.27 ±9.88 | 139.30 ±5.50 | 144.00 ±6.96 | 131.70 ±6.58 | 143.09 ±5.16 | 0.748 | |||||
| 免疫球蛋白M IgM/(ng/mL) | 6 356.91 ±230.93ab | 6 207.27 ±246.00ab | 6 905.86 ±155.15a | 5 970.26 ±343.43b | 7 001.41 ±262.95a | 0.039 | |||||
| 肿瘤坏死因子-α TNF-α/(ng/mL) | 98.77 ±5.34 | 106.95 ±5.00 | 91.48 ±5.10 | 96.95 ±5.28 | 102.93 ±2.08 | 0.226 | |||||
2.5.3 花椒粉对黄羽肉鸡肠道免疫基因表达的影响
表9 花椒粉对1-63日龄黄羽肉鸡肠道免疫基因表达的影响Table 9 Effects of Zanthoxylum bungeanum powder on intestinal immune gene expression of yellow-feathered broilers % |
| 项目 Items | 花椒粉添加水平Zanthoxylum bungeanum powder supplemental levels/% | P值 P-value | ||||
|---|---|---|---|---|---|---|
| 0(对照组 Control group) | 0.2 | 0.4 | 0.6 | 0.8 | ||
| 肿瘤坏死因子-α TNF-α | 1.04±0.13 | 1.19±0.07 | 1.15±0.19 | 2.21±0.76 | 1.11±0.49 | 0.238 |
| 白细胞介素-8 IL-8 | 1.03±0.18a | 0.45±0.03b | 0.35±0.04b | 1.08±0.27a | 0.69±0.09b | 0.008 |
| 白细胞介素-1β IL-1β | 1.01±0.35 | 0.92±0.05 | 1.00±0.30 | 1.31±0.33 | 1.07±0.20 | 0.572 |
| 溶菌酶LYZ | 1.01±0.07b | 1.00±0.10b | 1.97±0.44ab | 2.75±0.75a | 1.94±0.28ab | 0.042 |
| Toll样受体4 TLR4 | 1.01±0.06 | 0.94±0.06 | 0.74±0.08 | 1.14±0.55 | 1.08±0.24 | 0.914 |

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