1 材料与方法
1.1 试验材料
1.2 试验设计
表1 试验饲粮组成及营养水平(风干基础)Table 1 Composition and nutrient levels of experimental diets (air-dry basis) |
| 项目 Items | 花椒籽添加水平 Zanthoxylum bungeanum seeds supplemental level/% | |||
|---|---|---|---|---|
| 0(对照 Control) | 2 | 4 | 6 | |
| 原料 Ingredients | ||||
| 玉米 Corn grain | 10.0 | 10.0 | 10.0 | 10.0 |
| 次粉 Wheat middling | 8.0 | 8.0 | 8.0 | 8.0 |
| 豆粕 Soybean meal | 14.0 | 14.0 | 14.0 | 14.0 |
| 玉米胚芽粕 Corn germ meal | 10.0 | 10.0 | 10.0 | 10.0 |
| 葵花粕 Sunflower meal | 7.0 | 7.0 | 7.0 | 5.0 |
| 羊草粉 Leymus chinensis powder | 15.0 | 15.0 | 13.0 | 13.0 |
| 小麦麸 Wheat bran | 13.0 | 11.0 | 11.0 | 11.0 |
| 花椒籽 Zanthoxylum bungeanum seeds | 2.0 | 4.0 | 6.0 | |
| 稻壳粉 Rice hull powder | 10.0 | 10.0 | 10.0 | 10.0 |
| 豆秸粉 Soybean straw powder | 10.0 | 10.0 | 10.0 | 10.0 |
| 预混料 Premix1) | 3.0 | 3.0 | 3.0 | 3.0 |
| 合计 Total | 100.0 | 100.0 | 100.0 | 100.0 |
| 营养水平 Nutrient levels2) | ||||
| 消化能 DE/(MJ/kg) | 10.20 | 10.23 | 10.25 | 10.28 |
| 干物质 DM | 90.10 | 89.95 | 89.47 | 89.07 |
| 粗蛋白质 CP | 16.58 | 16.44 | 16.43 | 16.16 |
| 粗脂肪 EE | 2.22 | 2.53 | 3.02 | 3.55 |
| 粗纤维 CF | 17.19 | 17.98 | 18.05 | 16.88 |
| 中性洗涤纤维 NDF | 37.87 | 37.33 | 37.86 | 37.73 |
| 酸性洗涤纤维 ADF | 21.96 | 21.04 | 21.87 | 22.02 |
| 酸性洗涤木质素 ADL | 4.79 | 5.42 | 6.82 | 6.36 |
| 粗灰分 Ash | 8.23 | 8.31 | 8.43 | 8.46 |
| 钙 Ca | 0.99 | 1.01 | 0.93 | 0.89 |
| 总磷 TP | 0.58 | 0.51 | 0.56 | 0.55 |
| 赖氨酸 Lys | 0.84 | 0.83 | 0.84 | 0.81 |
| 蛋氨酸+胱氨酸 Met+Cys | 0.79 | 0.82 | 0.83 | 0.84 |
1)预混料为每千克饲粮提供 The premix provided the following per kg of diets:CaHPO4 15 g,NaCl 5 g,赖氨酸 Lys 1.5 mg,蛋氨酸 Met 1.0 g,Fe 60 mg,Cu 20 mg,Zn 60 mg,Mn 30 mg,I 1.0 mg,Se 0.5 mg,VA 8 000 IU,VD 1 500 IU,VE 60 mg,VK 1.5 mg,VB1 1.5 mg,VB2 10 mg,VB6 1.5 mg,VB12 0.5 mg,烟酸 nicotinic acid 35 mg,泛酸 pantothenic acid 15 mg,叶酸 folic acid 0.5 mg,生物素 biotin 0.5 mg,胆碱 chloride 150 mg。 | |
2)消化能为计算值,参照《肉兔营养需要量》(NY/T 4049—2021),其余为实测值。DE was a calculated value, which according to the Nutritional Requirement of Meat Rabbits (NY/T 4049—2021), while the others were measured values. |
1.3 测定指标及方法
1.3.1 花椒籽和饲粮营养成分
1.3.2 生长性能
1.3.3 屠宰性能
1.3.4 血清生化指标
1.3.5 肌肉品质
1.3.6 肌肉抗氧化指标
1.4 数据分析
2 结果
2.1 饲粮中花椒籽添加水平对肉兔生长性能的影响
表2 饲粮中花椒籽添加水平对肉兔生长性能的影响Table 2 Effects of dietary Zanthoxylum bungeanum seeds supplemental level on growth performance of meat rabbits |
| 项目 Items | 花椒籽添加水平 Zanthoxylum bungeanum seeds supplemental level/% | P值 P-value | |||
|---|---|---|---|---|---|
| 0(对照 Control) | 2 | 4 | 6 | ||
| 初始体重 IBW/g | 947.1±11.8 | 948.6±8.6 | 950.9±12.9 | 953.0±20.2 | 0.991 |
| 终末体重 FBW/g | 2 544.6±46.9 | 2 636.0±23.6 | 2 592.9±24.1 | 2 532.1±23.1 | 0.099 |
| 平均日增重 ADG/(g/d) | 38.04±1.24 | 40.07±0.67 | 39.09±0.61 | 37.73±0.81 | 0.234 |
| 平均日采食量 ADFI/(g/d) | 155.36±3.30a | 151.17±2.17a | 154.64±1.22a | 141.67±1.79b | 0.001 |
| 料重比 F/G | 4.10±0.11a | 3.78±0.06b | 3.96±0.08ab | 3.76±0.07b | 0.021 |
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 饲粮中花椒籽添加水平对肉兔屠宰性能的影响
表3 饲粮中花椒籽添加水平对肉兔屠宰性能的影响Table 3 Effects of dietary Zanthoxylum bungeanum seeds supplemental level on slaughter performance of meat rabbits |
| 项目 Items | 花椒籽添加水平 Zanthoxylum bungeanum seeds supplemental level/% | P值 P-value | |||
|---|---|---|---|---|---|
| 0(对照 Control) | 2 | 4 | 6 | ||
| 宰前活重 Pre-slaughter body weight/g | 2 528.6±83.3 | 2 632.1±60.9 | 2 514.3±59.2 | 2 532.1±75.5 | 0.628 |
| 半净膛率 Half eviscerated ratio/% | 55.97±0.79 | 56.19±1.15 | 57.10±0.64 | 55.76±0.81 | 0.709 |
| 全净膛率 Full eviscerated ratio/% | 52.20±0.68 | 52.31±0.98 | 53.43±0.59 | 51.25±0.93 | 0.328 |
| 心脏指数 Heart index/(g/kg) | 2.48±0.16 | 2.81±0.13 | 2.54±0.25 | 2.97±0.24 | 0.295 |
| 肺脏指数 Lung index/(g/kg) | 4.82±0.31 | 4.67±0.32 | 3.77±0.55 | 5.14±0.97 | 0.435 |
| 肝脏指数 Liver index/(g/kg) | 28.62±1.36a | 28.86±2.01a | 27.11±1.61a | 26.57±2.14b | 0.005 |
| 肾脏指数 Kidney index/(g/kg) | 6.44±0.19b | 6.31±0.19b | 5.84±0.24b | 7.36±0.65a | 0.045 |
2.3 饲粮中花椒籽添加水平对肉兔血清生化指标的影响
表4 饲粮中花椒籽添加水平对肉兔血清生化指标的影响Table 4 Effects of dietary Zanthoxylum bungeanum seeds supplemental level on serum biochemical indicators of meat rabbits |
| 项目 Items | 花椒籽添加水平 Zanthoxylum bungeanum seeds supplemental level/% | P值 P-value | |||
|---|---|---|---|---|---|
| 0(对照 Control) | 2 | 4 | 6 | ||
| 葡萄糖 GLU/(mmol/L) | 8.00±0.46 | 7.89±0.30 | 6.82±0.25 | 7.44±0.24 | 0.064 |
| 总蛋白 TP/(g/L) | 60.99±1.40a | 54.86±1.10b | 52.86±0.66b | 55.69±0.77b | <0.001 |
| 白蛋白 ALB/(g/L) | 41.38±0.56a | 37.74±0.63b | 38.48±0.53b | 38.34±0.75b | 0.002 |
| 球蛋白 GLOB/(g/L) | 19.61±1.36a | 17.11±0.93a | 14.38±0.29b | 17.34±0.50a | 0.003 |
| 白球比 ALB/GLOB | 2.16±0.13b | 2.25±0.13b | 2.68±0.06a | 2.24±0.09b | 0.008 |
| 尿素 UREA/(mmol/L) | 8.78±0.74 | 8.18±0.45 | 7.72±0.40 | 8.07±0.54 | 0.591 |
| 尿素氮 UN/(mmol/L) | 24.59±2.07 | 22.92±1.27 | 21.61±1.12 | 22.59±1.51 | 0.591 |
2.4 饲粮中花椒籽添加水平对肉兔肌肉物理性状的影响
表5 饲粮中花椒籽添加水平对肉兔肌肉物理性状的影响Table 5 Effects of dietary Zanthoxylum bungeanum seeds supplemental level on muscle physical properties of meat rabbits |
| 项目 Items | 花椒籽添加水平 Zanthoxylum bungeanum seeds supplemental level/% | P值 P-value | |||
|---|---|---|---|---|---|
| 0(对照 Control) | 2 | 4 | 6 | ||
| pH | 5.77±0.03 | 5.76±0.04 | 5.75±0.01 | 5.82±0.01 | 0.144 |
| 剪切力 Shear force/kgf | 2.63±0.03 | 2.50±0.08 | 2.54±0.07 | 2.52±0.03 | 0.200 |
| 滴水损失 Drip loss ratio/% | 4.24±0.30 | 4.06±0.34 | 4.20±0.13 | 4.11±0.34 | 0.696 |
| 蒸煮损失 Steaming loss ratio/% | 33.65±0.95 | 33.74±0.81 | 32.85±0.53 | 32.88±0.42 | 0.032 |
| 肉色 Meat color | |||||
| 亮度 L* | 56.13±1.14a | 52.30±1.47ab | 47.99±1.18b | 50.77±1.85b | 0.005 |
| 红度 a* | 8.81±1.37b | 9.04±1.85ab | 12.48±2.04a | 9.94±3.09ab | 0.025 |
| 黄度 b* | 13.65±0.85 | 13.15±0.84 | 14.79±0.91 | 14.14±1.69 | 0.767 |
2.5 饲粮中花椒籽添加水平对肉兔肌肉营养成分的影响
表6 饲粮中花椒籽添加水平对肉兔肌肉营养成分的影响Table 6 Effects of dietary Zanthoxylum bungeanum seeds supplemental level on muscle nutritional composition of meat rabbits |
| 项目 Items | 花椒籽添加水平 Zanthoxylum bungeanum seeds supplemental level/% | P值 P-value | |||
|---|---|---|---|---|---|
| 0(对照 Control) | 2 | 4 | 6 | ||
| 常规营养成分 Routine nutritional composition/% | |||||
| 干物质 DM | 24.66±0.35b | 25.59±0.44a | 25.61±0.32a | 26.10±0.37a | 0.033 |
| 粗蛋白质 CP | 21.59±0.40b | 22.20±0.49ab | 22.96±0.19a | 22.73±0.19a | 0.045 |
| 粗脂肪 EE | 1.13±0.05b | 1.27±0.06a | 1.23±0.11a | 1.54±0.12a | 0.024 |
| 有机物 OM | 98.56±0.04b | 98.79±0.05a | 98.77±0.03a | 98.73±0.04a | 0.001 |
| 氨基酸及衍生物 Amino acid and derivative/(μg/g) | |||||
| 甘氨酸 Gly | 80.62±9.08 | 91.33±3.87 | 85.06±5.95 | 105.37±16.02 | 0.333 |
| 丙氨酸 Ala | 77.74±7.81 | 95.45±10.20 | 92.83±7.52 | 90.30±8.74 | 0.493 |
| γ-氨基丁酸 GABA | 0.29±0.03 | 0.35±0.06 | 0.23±0.03 | 0.39±0.05 | 0.083 |
| 丝氨酸 Ser | 66.77±12.05 | 83.58±9.21 | 70.91±7.00 | 71.74±8.26 | 0.621 |
| 脯氨酸 Pro | 29.38±4.85 | 33.73±2.83 | 30.44±2.63 | 31.33±2.96 | 0.831 |
| 缬氨酸 Val | 77.42±15.41 | 90.84±10.56 | 80.23±8.24 | 80.12±8.10 | 0.831 |
| 苏氨酸 Thr | 29.39±6.95 | 34.19±4.84 | 31.49±3.66 | 29.47±3.71 | 0.891 |
| 异亮氨酸 Ile | 55.71±11.51 | 66.79±8.31 | 59.43±5.86 | 54.66±5.89 | 0.722 |
| 亮氨酸 Leu | 108.65±25.67 | 131.15±18.05 | 115.65±13.64 | 103.37±13.49 | 0.733 |
| 天冬酰胺 Asn | 22.83±3.72 | 28.45±3.20 | 26.02±2.48 | 26.18±2.67 | 0.640 |
| 鸟氨酸 Orn | 4.65±0.71 | 6.58±1.51 | 3.30±0.50 | 3.97±0.81 | 0.117 |
| 天冬氨酸 Asp | 15.22±3.95 | 19.19±2.86 | 14.31±2.13 | 16.10±3.36 | 0.718 |
| 半胱氨酸 Cys | 2.42±0.27 | 2.51±0.15 | 2.81±0.22 | 2.75±0.15 | 0.480 |
| 谷氨酰胺 Gln | 618.81±67.20 | 748.86±40.31 | 705.51±58.11 | 731.41±67.11 | 0.432 |
| 赖氨酸 Lys | 54.30±13.00 | 63.01±9.41 | 52.57±6.57 | 48.22±7.01 | 0.726 |
| 谷氨酸 Glu | 51.04±11.68 | 59.31±7.91 | 51.78±5.73 | 46.07±6.72 | 0.733 |
| 蛋氨酸 Met | 47.54±10.37 | 55.14±7.44 | 50.12±5.94 | 45.63±5.64 | 0.828 |
| 组氨酸 His | 323.35±30.98 | 300.46±20.09 | 315.24±21.27 | 315.67±23.09 | 0.925 |
| 苯丙氨酸 Phe | 81.10±15.50 | 9.49±11.63 | 86.44±7.62 | 76.26±7.25 | 0.670 |
| 精氨酸 Arg | 40.30±9.94 | 47.16±6.91 | 41.38±5.39 | 36.96±6.06 | 0.797 |
| 酪氨酸 Tyr | 121.49±22.95 | 142.01±17.88 | 126.30±10.93 | 114.80±12.18 | 0.698 |
| 色氨酸 Trp | 15.93±2.96 | 18.28±2.35 | 15.35±1.21 | 13.40±1.23 | 0.439 |
2.6 饲粮中花椒籽添加水平对肉兔肌肉抗氧化指标的影响
表7 饲粮中花椒籽添加水平对肉兔肌肉抗氧化指标的影响Table 7 Effects of dietary Zanthoxylum bungeanum seeds supplemental level on muscle antioxidant indicators of meat rabbits |
| 项目 Items | 花椒籽添加水平 Zanthoxylum bungeanum seeds supplemental level/% | P值 P-value | |||
|---|---|---|---|---|---|
| 0(对照 Control) | 2 | 4 | 6 | ||
| 总抗氧化能力 T-AOC/(μmol/g prot) | 3.94±0.12b | 6.09±0.55a | 5.78±0.47a | 5.52±0.41a | 0.007 |
| 超氧化物歧化酶 SOD/(U/g prot) | 162.45±2.54d | 181.08±4.09c | 195.47±4.45b | 211.14±4.26a | <0.001 |
| 谷胱甘肽过氧化物酶 GSH-Px/(U/g prot) | 76.01±1.89c | 85.05±1.09b | 94.91±1.86a | 80.72±1.60bc | <0.001 |
| 过氧化氢酶 CAT/(U/g prot) | 298.84±6.58b | 339.09±3.08a | 374.39±7.29a | 410.31±7.35a | <0.001 |
| 丙二醛 MDA/(nmol/g prot) | 6.35±0.11a | 5.46±0.09b | 5.14±0.14c | 4.95±0.08c | <0.001 |

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