›› 2009, Vol. 36 ›› Issue (10): 16-20.

• 动物营养与饲料科学 • 上一篇    下一篇

不同酶制剂在生长猪小麦型日粮中应用效果的研究

王前光1,刘秋1,高惠林1,贺建华2   

  1. (1.常德职业技术学院, 常德 415000; 2.湖南农业大学动物科技学院, 长沙 410128)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-10-20 发布日期:2009-10-20
  • 通讯作者: 贺建华

Study on Effect of Different Enzyme Preparations in Wheat-based Diet for Growing Pigs

WANG Qian-guang1, LIU Qiu1,GAO Hui-lin1,HE Jian-hua2   

  1. (1.Changde Vocational Technical College, Changde 415000, China;2. College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-10-20 Published:2009-10-20
  • Contact: HE Jian-hua

摘要: 本研究选用4种不同的酶制剂(E1、E2、欧蒂酶(OT)、木聚糖酶),以小麦基础日粮为试验材料,探讨不同酶制剂在生长猪小麦日粮中的应用效果。采用单因素试验设计,选用112头体重19.34 kg左右的二元(长×大)杂交猪,随机分为7个处理组,每组4个重复,每个重复4头猪,公母各半。试验期8周,分为0~2周、2~4周和4~8周3个阶段,饲喂日粮分别为玉米型日粮、小麦基础日粮、小麦基础日粮+不同酶制剂(E1,E2,欧蒂酶,木聚糖酶)和低能小麦型日粮+欧蒂酶,考察酶制剂对生长猪生产性能的影响;同时,另选6头体重在20 kg左右的二元(长×大)杂交阉公猪于回肠末端安装T型瘘管,采用6×6拉丁方试验设计进行消化试验,利用内源指示剂法(AIA)测定酶制剂对营养物质的表观回肠和粪消化率。试验结果表明,与小麦基础组相比,小麦日粮中添加酶制剂能提高生长猪的平均日增重,2~4周时有提高趋势(P=0.10);与小麦对照组相比较,E1组全期平均日增重差异不显著(P>0.05), 木聚糖酶组和E2组差异显著(P<0.05),欧蒂酶组差异极显著(P<0.01)。小麦日粮中添加酶制剂均能显著降低生长猪全期料重比(P<0.05);同时,酶制剂能显著降低生长猪4~8周及全期的腹泻率(P<0.05),E2组、欧蒂酶组、木聚糖酶组达极显著水平(P<0.01);消化试验结果表明,酶制剂有提高日粮中蛋白质和能量的粪表观消化率,但差异不显著(P>0.05);酶制剂的添加有提高能量的回肠表观消化率的趋势(P=0.10);E2、欧蒂酶、木聚糖酶的添加能显著提高粗蛋白质的回肠表观消化率(P<0.05),E1组差异不显著(P>0.05)。

关键词: 小麦; 酶制剂; 生产性能; 营养物质消化率; 生长猪

Abstract: Four enzyme preparations (E1,E2,OT,Xylanase) were evaluated by animal feeding trial using wheat-type diets for growing pigs. Using a single factor design,112 heads of crossbred (Landrace×Yorkshire) piglets about 19.34 kg were selected and divided into 7 treatments (4 duplicates per treatment and each duplicates had 4 piglets with the male/female=1∶1) randomly,to investigate the effect of different enzymes on performance of growing pigs.The duration of feed trial was 8 weeks,and divided into three phases (week 0 to 2;2 to 4;4 to 8 respectively). The diets were as follows:corn-based diet,wheat-based diet, wheat-based diet with E1,E2,OT and xylanase separately,lower-energy wheat-based diet with OT enzyme.Furthermore,
another 6 heads of crossbred (Landrace×Yorkshire) barrows about 20 kg fitted with a simple “T” cannula at the terminal ileum were selected and conducted in a 6×6 Latin Square design to assay the apparent feces digestibility and ileal digestibility using AIA.The results indicated that adding enzymes can improve the ADG compared with wheat-based diet, and have the tendacy to improve the ADG during the week 2 to 4 (P=0.10). There is no significant effect on the ADG of E1 treatment in whole trail (P>0.05).Other enzymes can increase the ADG significantly(P<0.05) and OT treatment (P<0.01) had higher ADG than the control treatment. Adding enzymes to wheat-based diet can significantly decrease the F/G in whole trail(P<0.05),and significantly decrease the diarrhea ratio from 4 to 8 weeks and the whole trial (P<0.05).E2,OT,Xylanase treatment get to positively significant level(P<0.01). Compared with wheat-based diet, enzymes had no significant effect on apparent feces digestibility of CP and Energy for growing pigs (P>0.05). Enzymes supplementation had the tendacy to improve the apparent ideal digestibility of energy (P=0.10).E2,OT,Xylanase can significant improve the apparent ileal digestibility of CP(P<0.05), but there was no significant effect by adding E1(P>0.05). 

Key words: wheat; enzyme preparations; performance; nutrient digestibility; growing pig

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