1 材料与方法
1.1 检索策略
1.2 纳入标准和排除标准
1.3 信息收集
1.4 文献质量评估
1.5 数据分析
2 结果
2.1 不同SBM替代品对断奶猪生长性能的影响
表2 不同SBM替代品对断奶猪生长性能的影响Table 2 Effects of different soybean meal substitutes on growth performance of weaned pigs |
| 项目 Items | 组别 Groups | 异质性检验 Heterogeneity test | 模型 Model | Meta分析结果 Results of Meta-analysis | Egger检验 Egger test | 敏感性 Sensitivity/ % | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| I2/% | P值 P-value | 合并值 Combined value | 下限 Lower limit (95% CI) | 上限 Upper limit (95% CI) | P值 P-value | |||||
| 平均日增重 | 1 | 100 | <0.01 | REM | 322.32 | 285.71 | 358.94 | <0.000 1 | <5 | |
| ADG/g | 3 | 99 | <0.01 | REM | 317.47 | 265.60 | 369.35 | 0.623 5 | <5 | |
| 平均日采食量 | 1 | 100 | <0.01 | REM | 671.10 | 595.67 | 746.52 | <0.010 0 | <5 | |
| ADFI/g | 3 | 100 | <0.01 | REM | 501.06 | 403.20 | 598.92 | 0.015 9 | <5 | |
REM:随机效应模型;95% CI:95%置信区间。同一指标同列数据肩标无字母或相同字母表示差异不显著(P>0.05),不同字母表示差异显著(P<0.05)。下表同。 | |
REM:random effects model; 95% CI: 95% confidence interval. In the same indicator and the same column of data, values with no letter or the same letter superscripts mean no significant difference (P>0.05), while with different letter superscripts mean significant difference (P<0.05). The same as below. |
2.2 不同SBM替代品对生长猪生长性能的影响
表3 不同SBM替代品对生长猪生长性能的影响Table 3 Effects of different soybean meal substitutes on growth performance of growing pigs |
| 项目 Items | 组别 Groups | 异质性检验 Heterogeneity test | 模型 Model | Meta分析结果 Results of Meta-analysis | Egger检验 Egger test | 敏感性 Sensitivity/ % | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| I2/% | P值 P-value | 合并值 Combined value | 下限 Lower limit (95% CI) | 上限 Upper limit (95% CI) | P值 P-value | |||||
| 1 | 100 | <0.01 | REM | 823.04a | 787.72 | 858.35 | 0.968 5 | <5 | ||
| 平均日增重 | 2 | 100 | <0.01 | REM | 670.49b | 628.32 | 712.65 | 0.006 0 | <5 | |
| ADG/g | 3 | 100 | <0.01 | REM | 766.27ab | 647.57 | 884.96 | 0.005 6 | <5 | |
| 4 | 100 | <0.01 | REM | 604.96b | 563.37 | 646.56 | 0.088 4 | <5 | ||
平均日采食量 | 1 | 100 | <0.01 | REM | 1 729.62 | 1 619.55 | 1 839.69 | 0.621 7 | <5 | |
ADFI/g | 2 | 99 | <0.01 | REM | 1 585.91 | 1 433.21 | 1 738.61 | 0.553 6 | <5 | |
| 4 | 100 | <0.01 | REM | 1 675.48 | 1 511.16 | 1 839.79 | 0.015 7 | <5 | ||
| 料重比 | 1 | 99 | <0.01 | REM | 2.46 | 2.36 | 2.55 | 0.404 4 | <5 | |
| F/G | 2 | 100 | <0.01 | REM | 2.67 | 2.50 | 2.84 | 0.553 6 | <5 | |
2.3 不同SBM替代品对育肥猪生长性能的影响
表4 不同SBM替代品对育肥猪生长性能的影响Table 4 Effects of different soybean meal substitutes on growth performance of finishing pigs |
| 项目 Items | 组别 Groups | 异质性检验 Heterogeneity test | 模型 Mode | Meta分析结果 Results of Meta-analysis | Egger检验 Egger test | 敏感性 Sensitivity/ % | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| I2/% | P值 P-value | 合并值 Combined value | 下限 Lower limit (95% CI) | 上限 Upper limit (95% CI) | P值 P-value | |||||
| 1 | 98 | <0.01 | REM | 895.89a | 859.31 | 932.46 | 0.019 8 | <5 | ||
| 平均日增重 | 2 | 92 | <0.01 | REM | 908.74a | 894.64 | 922.85 | 0.046 5 | <5 | |
| ADG/g | 3 | 91 | <0.01 | REM | 817.94ab | 728.02 | 907.86 | 0.094 4 | <5 | |
| 4 | 100 | <0.01 | REM | 729.36b | 705.54 | 753.19 | 0.837 2 | <5 | ||
平均日采食量 | 1 | 98 | <0.01 | REM | 2 585.42 | 2 463.60 | 2 707.25 | 0.448 8 | <5 | |
ADFI/g | 3 | 95 | <0.01 | REM | 2 748.37 | 2 623.70 | 2 873.03 | 0.637 4 | <5 | |
| 4 | 100 | <0.01 | REM | 2 535.43 | 2 411.95 | 2 658.91 | 0.582 2 | <5 | ||
| 料重比 | 1 | 98 | <0.01 | REM | 2.76b | 2.67 | 2.85 | 0.862 5 | <5 | |
| F/G | 4 | 99 | <0.01 | REM | 3.40a | 3.17 | 3.63 | 0.071 9 | <5 | |
2.4 猪不同生长阶段生长性能指标间的相互关系
图4 断奶猪生长性能指标间的相关性下三角为指标间相关性散点图;上三角为相关系数(r);反对角线为数据分布曲线。**表示极显著相关(P<0.01),*表示显著相关(P<0.05)。下图同。 Fig.4 Correlation among growth performance indexes of weaned pigs The lower triangle is the correlation scatter diagram among the indexes; the upper triangle is the correlation coefficient (r); the anti-angular line is the data distribution curve. ** indicates highly significant correlation (P<0.01), * indicates significant correlation (P<0.05). The same as below. |
图5 生长猪生长性能指标间的相关性Fig.5 Correlation among growth performance indexes of growing pigs |
