天蚕素抗菌肽替代硫酸黏杆菌素对断奶仔猪生长性能及腹泻的影响

发布时间：2018-03-17 08:07

本文选题：天蚕素抗菌肽　切入点：包被精油　出处：《饲料工业》2017年04期 　论文类型：期刊论文

【摘要】：试验旨在研究在教槽料和保育料中添加天蚕素抗菌肽替代硫酸黏杆菌素对断奶仔猪生长性能及腹泻的影响,为养殖企业和饲料企业设计断奶仔猪日粮配方提供参考依据。试验选用25日龄断奶仔猪240头,随机分成4组,每组3个重复,每个重复20头仔猪,公母各半。对照组日粮在基础日粮中添加20 mg/kg硫酸黏杆菌素,试验1~3组日粮在基础日粮中分别添加200 g/t天蚕素抗菌肽和100 g/t包被精油、300 g/t天蚕素抗菌肽、300 g/t其他抗菌肽。试验分教槽料阶段(0~14 d)与保育料阶段(14~28 d)两阶段进行,通过检测平均日增重、平均日采食量、料重比、腹泻指数和腹泻率五个指标评价天蚕素抗菌肽的效果。试验结果显示,在教槽料阶段(0~14 d),3个试验组与对照组相比,上述5个指标均没有显著变化(P0.05)。在保育料阶段(14~28 d),与对照组相比,试验1组和试验2组的平均日增重显著增加(P0.05),同时腹泻指数和腹泻率显著降低(P0.05)。在试验全过程(0~28 d),与对照组相比,试验1组和试验2组的料重比无明显变化,但平均日增重显著提高(P0.05),分别提高了16.6%、10.5%;腹泻指数和腹泻率显著降低(P0.05),腹泻指数都降低了36.4%,腹泻率分别降低了52.6%、47.1%;试验3组的料重比显著提高了12.4%(P0.05),腹泻指数和腹泻率无明显变化。因此,在教槽料和保育料中添加天蚕素抗菌肽,有明显提高日增重和减少腹泻的功效,与包被精油组合使用效果更佳,天蚕素抗菌肽可作为硫酸黏杆菌素替代品添加至饲料中使用。
[Abstract]:The purpose of the experiment was to study the effect of the addition of antimicrobial peptide from the silkworm to replace the mucin sulfate in the teaching and conservation materials on the growth performance and diarrhea of weaned piglets. 240 weaned piglets at 25 days of age were randomly divided into 4 groups, with 3 replicates in each group and 20 piglets per replica. The control diet was supplemented with 20 mg/kg mucin sulfate in the basal diet. In experiment 1, 3 groups of diets were fed with 200 g / t of Antimicrobial Peptide and 100 g / t coated with essential Oil of 300 g / t of other antimicrobial peptides in the basal diet. The experiment was conducted in two stages: the feeding period was 0 ~ 14 d) and the conservation stage was 14 ~ 28 days. The average daily gain, average daily feed intake, feed weight ratio, diarrhea index and diarrhea rate were measured to evaluate the effect of antimicrobial peptide. The results showed that the three groups were compared with the control group in the period of 14 days. There was no significant change in the above five indexes (P 0.05). The average daily gain of group 1 and group 2 increased significantly, while the diarrhea index and diarrhea rate decreased significantly. During the whole course of the experiment, the feed weight ratio of group 1 and group 2 did not change significantly compared with the control group. However, the average daily gain increased significantly by 16.610.5%, the diarrhea index and diarrhea rate decreased significantly, the diarrhea index decreased 36.4%, the diarrhea rate decreased 52.6% and 47.1%, respectively; the feed weight ratio of the three groups increased significantly (P 0.05), the diarrhea index and the diarrhea rate increased significantly (P 0.05). No obvious change. Therefore, The addition of Antimicrobial peptides into the teaching tank and preservative material could significantly increase daily weight gain and reduce diarrhea, and the combination with coated essential oil could be used as a substitute for Myxobacterium sulfate to be used in feed.
【作者单位】：广东海纳川生物科技股份有限公司;
【分类号】：S828.5

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