A total of 120 finishing pigs with an average initial body weight of 49.72 ± 0.08 kg (mean ± SD) were used in a 10 weeks trial. Pigs were randomly allotted into one of four dietary treatments (6 replicate pen/treatment, 5 pigs/pen). The nutritional dietary treatments were corn, soy bean meal, palm- kernel meal, and rapeseed meal based basal diets supplemented with 0, 0.05, 0.10, and 0.20% of Achyranthes japonica extract (AJE). Dietary inclusion of AJE supplementation had trend to increase the body weight and average daily gain of pigs at week 10 and the overall experimental period, respectively. The graded level of AJE supplement had increase the total track digestibility dry matter (p = 0.067) only at week 5 while nitrogen and energy digestibility (p < 0.05) was linearly increased at both weeks 5 and 10. During week 10, pigs fed with an increased level of AJE supplementation had linearly increase (p < 0.05) fecal Lactobacillus counts. In addition, AJE supplementation in the diet of finishing pigs had linearly decreased (p > 0.05) NH₃ emission of gas and trend to decrease total mercaptans during week 10. Dietary inclusion of AJE supplement resulted in a linear increase in the blood protein concentration level. Moreover, drip loss was linearly reduced on day 5 and day 7 (p > 0.05) post slaughter in finishing pigs fed with gradually increased levels of AJE supplementation. During weeks 5 and 10, pigs fed with graded levels of AJE supplementation had linearly increase (p < 0.05) the backfat thickness and lean meat percentage. Therefore we conclude that dietary inclusion of AJE with palm kernel meal and rapeseed meal could be benificial to enhance the growth performance, nutrient digestibility, fecal microbial, blood prolife, meat quality and reduced fecal gas emission in finishing pigs.

中文翻译：

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牛膝提取物对饲喂含有棕榈仁粕和菜籽粕部分替代豆粕的日粮的育肥猪性能的影响

在为期 10 周的试验中，总共使用了 120 头平均初始体重为 49.72 ± 0.08 kg（平均值 ±  SD ）的肥育猪。猪被随机分配到四种饮食处理中的一种（6个重复栏/处理，5头猪/栏）。营养日粮处理是玉米、豆粕、棕榈仁粕和油菜籽粕基础日粮，辅以 0、0.05、0.10 和 0.20% 的牛膝提取物 ( AJE )。在第 10 周和整个实验期间，添加 AJE 补充剂的日粮具有分别增加猪的体重和平均日增重的趋势。AJE补充剂的分级水平增加了总轨道消化率干物质（p = 0.067) 仅在第 5 周，而氮和能量消化率 ( p  < 0.05) 在第 5 周和第 10 周线性增加。在第 10 周，饲喂 AJE 补充剂水平增加的猪的粪便乳酸菌线性增加 ( p < 0.05 )计数。此外，在肥育猪日粮中添加 AJE 线性减少 ( p > 0.05) NH ₃气体排放，并且在第 10 周内总硫醇呈下降趋势。日粮添加 AJE 导致血蛋白浓度水平线性增加. 此外，滴水损失在第 5 天和第 7 天线性减少（p> 0.05) 屠宰后逐渐增加添加 AJE 的肥育猪。在第 5 周和第 10 周，饲喂分级添加 AJE 的猪 的背膘厚度和瘦肉百分比呈线性增加 ( p < 0.05)。因此，我们得出结论，在日粮中添加 AJE 与棕榈仁粕和菜籽粕有助于提高育肥猪的生长性能、养分消化率、粪便微生物、血液增殖、肉质和减少粪便气体排放。