The present experiment was conducted to study the effects of different levels of oligosaccharide(FOS) and complex CPP preparation(CPP) in diets on growth performance and serum biochemical parameters for weaned piglets. 240 crossbred DLY( Duroc× Landrace× Yorkshire) 21-day-old weaning piglets, about 7.2 kg in initial body weight were selected and randomly divided into 6 groups, with 2 repeats for each group, 20 each repeat(half male and half female.). Group 1, as the control group, was fed base diet(BD), group 2 was fed BD adding 0.10% aureomycin, group 3, 4, 5, 6, respectively, was fed BD adding 0.05% CPP, 0.05% FOS, 0.20% FOS and 0.10% FOS + 0.05% of CPP. Feeding trial was conducted for 35 days. Results: (1) The combination of 0.10%FOS and 0.05%CPP(group 6) were added, the average daily gain of weaned pigs increased by 13.71 % (P < 0.05) and the feed conversion ratio was reduced by 7.41 % (P < 0.05) compared with control. The diarrhea rate of piglets decreased by 94.63 % (P < 0.01) compared with the control (p < 0.05), and decreased by 62.86 % (P <0.05) compared with group 2.(2)There was no significant difference in the apparent digestibility of nutrient, such as ether extract and crude protein, by adding FOS and CPP individually or jointly in diet of weaned piglets, but apparent digestibility of crude fiber increased , to acertain extent, and there was no significant difference with diet adding 0.10 % of antibiotics (group 2)(P >0.05).(3) There was no significant difference in serum biochemical indexes, such as serum total protein, albumin, urea nitrogen, cholesterol, triglycerides, alanine aminotransferase, aspartate aminotransferase and sugar by adding FOS and CPP individually or jointly in diet of weaned piglets (P > 0.05);there was no significant effect in serum immunoglobulin IgG and IgM (P> 0.05), but the serum IgE content was increased in different degrees. Conclusion: Adding FOS and CPP in diet for weaned piglets can improve the growth performance, reduce diarrhea rate of piglets, and promote digestion and absorption of feed nutrients, without significant difference between them and diet adding antibiotics. Among them, the effect of adding 0.10%FOS+0.05%CPP was the best.

为了研究不同添加水平的果寡糖(FOS)和复合益生素制剂(CPP)对断奶仔猪肠道pH值、小肠绒毛膜形态和肠道菌群的影响,试验选择21日龄左右体重约7.2 kg的杜长大三元杂交断奶仔猪240头,随机分为6组,每组2个重复,每个重复20头(公母各半).1组为对照组,饲喂基础日粮;2组为抗生素组,在基础日粮中添加0.10％的金霉素制剂;3组、4组、5组、6组分别在基础日粮中添加0.05％CPP、0.10％FOS(纯量)、0.20％FOS、0.10％FOS+0.05％CPP,试验期为35 d.结果表明:在日粮中添加0.10％ ～0.20％FOS和0.05％CPP替代抗生素可有效降低仔猪肠道pH值,提高小肠绒毛长度和绒毛高度与隐窝深度比值,有利于饲料养分消化吸收;减少肠道大肠杆菌、沙门氏菌等有害菌数量,增加乳酸杆菌、双歧杆菌等有益菌数量,有利于维持肠道菌群平衡,增进肠道健康,其中以联合添加0.10％FOS+0.05％CPP效果最优,其次是添加0.20％FOS的效果较好.

This research was designed to measure the nutritive value of cassava stem,peanut vine,soybean straw,fragrant grass,pennisetum and spinach.By the syringe system (in vitro gas production,Menke).The experimental result suggested that the relative feeder value of these grass,cassava stem,peanut vine,soybean straw,fragrant grass,pennisetum and spinach were 121.00％,87.90％,80.20％,123.30％,104.04％ and 121.38％.And the digestibility of organic compound was 48.26％,46.42％,38.47％,41.61％,49.00％ and 58.42％,they belonged to the RFV roughage classification standard level 2,level 3,level 4,level 2,level 2 and level 2.In turn these results suggested that these grasses we mentioned about could be used as the feed of the ruminant and present a good feeding value.

选用超声醇提柿木皮中的单宁,通过单因素和正交实验优化提取工艺;采用HPD500大孔吸附树脂对粗提物进行纯化;用过氧化值(POV)和丙二醛(MDA)吸光度值分析方法考察了柿木皮单宁粗提物和纯化物的油脂抗氧化活性,并探讨了粗提物和纯化物分别与维生素C(VC)的协同作用.结果表明,木皮单宁的最佳提取工艺包括超声波功率、提取温度、乙醇体积分数、提取时间分别为360 W、70℃、50％、50 min,在该条件下单宁提取率为5.6％.纯化物单宁纯度为53.31％.粗提物和纯化物都对油脂有一定的抗氧化活性,活性大小顺序为纯化物＞VC＞粗提物.当粗提物添加量为0.08％,纯化物添加量为0.04％时,有较强抗油脂氧化活性,但与VC均没有协同增效作用.