饲粮添加果寡糖和复合益生素对断奶仔猪生长性能和血清生化指标的影响

Effects of dietary fructo-oligosaccharides and probiotics on growth performance and serum biochemical parameters for weaned piglets

试验研究饲粮添加不同水平的果寡糖(FOS)和复合益生素(CPP)对断奶仔猪生长性能及生化指标的影响。选择21日龄左右断奶、体重约7.2 kg的健康杜×长×大三元杂交仔猪240头,随机分为6组,每组设2个重复,每个重复20头,公母各半。1组为对照组,饲喂基础饲粮,2组为抗生素组,在基础饲粮中添加0.10%的金霉素(AP),3、4、5、6组为分别在基础饲粮中添加0.05%CPP、0.10%FOS、0.20%FOS、0.10%FOS+0.05%CPP。进行为期35 d的饲养试验。结果显示:(1)与对照组相比,饲粮中联合添加0.10%FOS+0.05%CPP,断奶仔猪平均日增重提高13.77%(P<0.05);料重比降低了7.41%(P<0.05);仔猪腹泻率降低了94.63%(P<0.05),比0.10%抗生素组降低了62.86%(P>0.05)。(2)断奶仔猪饲粮中单独或者联合添加FOS和CPP能一定程度提高饲粮粗纤维等养分的表观消化率,与0.10%抗生素效果无显著差异(P>0.05)。(3)饲粮中单独或者联合添加FOS和CPP对断奶仔猪血清总蛋白、白蛋白、尿素氮、胆固醇、甘油三酯、谷丙转氨酶、天门冬氨酸氨基转移酶和血糖等生化指标无显著影响(P>0.05)。综上所述,FOS和CPP能改善断奶仔猪生长性能,提高仔猪健康水平,促进饲料养分的消化吸收,其效果与抗生素无显著差异;其中以添加0.10%FOS+0.05%CPP效果最佳。

The present experiment was conducted to study the effects of different levels of oligosaccha- ride（FOS） and complex probiotics preparation（CPP） in diets on growth performance and serum biochem- ical parameters for weaned piglets. 240 crossbred DLY（Duroc×Landrace×Yorkshire） 21-day-old wean- ing 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,fed base diet（BD）, group 2 fed BD adding 0.10% aureomycin, group 3, 4, 5, 6, respectively, fed BD add- ing 0.05% CPP, 0.10% FOS, 0.20% FOS, 0.10% FOS ＋ 0.05% CPP. Feeding trial was conducted for 35 d. Results showed： ① The combination of 0.10% FOS and 0.05% CPP （group 6） were added, the average daily gain of weaned pigs increased by 13.77% （P〈0.05） and the feed conversion ratio was re- duced by 7.41% （P〈0.05） compared with control. The diarrhea rate of piglets decreased by 94.63% compared with the control（P〈0.05）, and decreased by 62.86% （P〉0.05） compared with group 2. ②There was no significant difference in the ap- parent 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 bio- chenlical indexes,such as serum total protein, albumin, urea nitrogen, choleslerol, triglycerides, alanine aminotransferase, aspartate aminotransferase and sugar by adding FOS and CPP individually or jointly in diel of weaned piglets （P〉0.05）; So adding FOS and CPP in diet for weaned piglets can improve Ihe growth performance.reduee diarrhea rate of piglets, and promote digeslion and absorption of feed nutri- ents, without significant difference between them and diet adding antibiotics. Among them, the effect of adding 0.10% FOS＋0.05% CPP was the best.