发酵木薯酒精糟对生产猪生产性能及营养物质消化的影响

Effect of fermented cassava alcohol lees on production performance and nutrient digestibility of growing pigs

试验研究不同水平的发酵木薯酒精糟对生长猪生产性能的影响。选择200头初始体重约(26.35±0.43)kg的生长猪,随机分为5个处理组,每组4个重复,每个重复10头猪。5个处理组分别为:A组为对照组,饲喂基础日粮;B组、C组和D组分别为发酵木薯酒精糟用量为2%、6%和15%的配合日粮组,E组则为用发酵木薯酒精糟直接替代6%基础日粮的混合日粮组。结果表明,B组和C组的日增重较A组分别提高了6.45%(P>0.05)和4.84%(P>0.05),各试验组料肉比均低于对照组,分别降低了7.48%、9.06%、5.12%和0.39%。日粮中添加发酵木薯酒精糟后有效改善了营养物质消化率,B组、C组、D组及E组干物质消化率较对照组分别提高了8.62%(P<0.05)、7.50%(P>0.05)、4.75%(P>0.05)和5.26%(P>0.05);粗蛋白消化率较对照组分别提高了11.43%(P<0.05)、9.50%(P<0.05)、9.61%(P<0.05)和10.61%(P<0.05);粗脂肪消化率较对照组分别提高了15.66%(P<0.05)、15.86%(P<0.05)、12.98%(P<0.05)和14.10%(P<0.05);钙的消化率则较对照组分别提高了10.46%(P<0.05)、6.50%(P>0.05)、6.93%(P>0.05)和10.60%(P<0.05)。B组、C组、D组及E组较A组的养殖效益均有所提高,每千克饲料的增重成本分别降低了0.683、0.833、0.523元和0.238元,其中使用处理C组饲料的效益最好。本试验结果说明,生长猪日粮中发酵木薯酒精糟的适宜添加量为2%~6%,能有效提高猪的生产性能和养殖效益。

The effect of different levels of fermented cassava alcohol lees on production performance of growing pigs was researched. A total of 200 pigs with initial weight of about 26 kg were randomly divided into treatment groups （n=5）, and each group had 4 replicates, each with a repeat of 10 pigs. The 5 groups were： group A was the control group fed with basal diet; group B, group C and group D respectively were used with fermented alcohol cassava lees with 2%, 6% and 15%;group E was mixed diet group by fermented alcohol cassava lees directly replace 6% basal diets. The results showed that the average daily gain of group B and group C were increased by 6.45% （P〉0.05） and 4.84%（P〉0.05） compare to group A. Compared with the control group, feed-gain ration of each experiment group was decreased by 7.48%, 9.06%, 5.12% and 0.39%, respectively.The nutrients digestibility were improved effectively by adding fermented cassava lees to diet. Compared with the group, dry matter digestibility of group B,group C, group D and E group were increased by 8.62%（P〈0.05）, 7.50%（P〉0.05）, 4.75%（P〉0.05） and 5.26% （P〉0.05）; crude protein digestibility of group B, group C, group D and E group were increased by 11.43% （P〈0.05） , 9.50% （P〈O.05） , 9.61% （P〈0.05） and 10.61% （P〈0.05）, crude fat digestibility of group B, group C, group D and E group were increased by 15.66% （P〈0.05） ,15.86% （P〈0.05）, 12.98% （P〈0.05） and 14.10% （P〈0.05）; calcium digestibility of group B, group C, group D and E group were increased by 10.46% （P〈0.05） , 6.50% （P〉0.05）, 6.93% （P〉0.05） and 10.60% （P〈0.05）;the breeding efficiency of group B, group C, group D and group E were improved and the weight gain cost per kg of feed were reduced by 0.683, 0.833, 0.523 and 0.238 yuan, while group C was the best. The results showed that the suitable addition amount of fermented cassava alcohol lees in growing pigs was 2%-6%, which could effectively improve the production performance and breeding efficiency.