不溶性纤维浓缩物在生长猪和断奶仔猪上的应用效果研究

发布时间：2018-08-03 18:38

【摘要】：试验旨在研究生长猪日粮中添加不溶性纤维浓缩物(IRFC)和不同的日粮饲喂水平对日粮消化能、代谢能、日粮营养物质全肠道表观消化率的影响,以及日粮中添加IRFC对断奶仔猪生长性能的影响。试验一选用24头初始体重为(62.13±2.01)kg的去势公猪,随机分为4个处理(前3个处理分别自由采食含IRFC 0%、0.5%和1%的日粮;第4个处理按公猪初始体重的2%饲喂含IRFC 1%的日粮),每组6头,设6个重复,每个重复1头猪。试验期12 d。试验二选用72头平均体重为(7.13±0.54)kg的断奶仔猪,采用完全随机区组试验设计,按照性别和体重分为2个处理,每个处理6个重复,每个重复6头猪(公、母各半),分别饲喂玉米-豆粕型基础日粮和含10 g/kg IRFC试验日粮,试验期28 d。结果表明:在生长猪日粮中添加IRFC对日粮消化能、代谢能以及日粮营养物质全肠道表观消化率无显著影响(P0.05),日粮中添加IRFC对断奶仔猪的生长性能无显著影响(P0.05),不同的日粮饲喂水平对日粮消化能、代谢能以及日粮营养物质全肠道表观消化率无显著影响(P0.05),但是随着IRFC添加量的提高,生长猪粪便含水量有下降的趋势(P=0.08),其内在机理还需进一步探讨。
[Abstract]:The aim of this study was to investigate the effects of dietary insoluble fiber concentrate (IRFC) and dietary feeding levels on dietary digestibility of digestibility, metabolic energy, total intestinal tract digestibility of dietary nutrients. And the effect of adding IRFC to diet on growth performance of weaned piglets. In experiment 1, 24 ovariectomized boars with initial body weight of (62.13 卤2.01) kg were randomly divided into 4 treatments (the first three treatments fed diets containing 0.5% and 1% IRFC, respectively; the fourth treatment fed diets containing 1% IRFC on the basis of 2% of the initial body weight of the boars). There were 6 replicates, 1 pig per replica. The experimental period was 12 days. In the second experiment, 72 weaned piglets with an average weight of (7.13 卤0.54) kg were selected and were divided into two treatments according to their sex and body weight, six replicates per treatment and six pigs per replica (male). Mother and half were fed corn-soybean meal basal diet and trial diet containing 10 g/kg IRFC for 28 days. The results showed that the dietary digestibility of growing pigs was increased by adding IRFC to the diet. Metabolic energy and total intestinal apparent digestibility of dietary nutrients were not significantly affected (P0.05), dietary IRFC supplementation had no significant effect on growth performance of weaned piglets (P0.05), and different dietary levels had no significant effect on dietary digestibility. The total intestinal apparent digestibility of metabolic energy and dietary nutrients had no significant effect (P0.05), but with the increase of IRFC, the water content in feces of growing pigs decreased (P0. 08), and its intrinsic mechanism needed to be further explored.
【作者单位】：中国农业大学动物营养学国家重点实验室农业部饲料工业中心;
【基金】：高等学校学科创新引智计划资助(B16044)
【分类号】：S828.5

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