作　　者： (李恩凯）; (赵金标）; (刘岭）; (李忠超）; (张帅）;

机构地区： 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,北京100193

出　　处： 《中国畜牧杂志》 2017年第9期80-85,共6页

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(P>0.05),日粮中添加IRFC对断奶仔猪的生长性能无显著影响(P>0.05),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(P>0.05),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。 This study was conducted to determine the effects of insoluble raw fibre concentrate （IRFC） addition anddifferent diet feeding levels on the digestible energy （DE）, metabolizable energy （ME） and apparent total tract digestibility（ATTD） of nutrients in diets fed to growing pigs, as well as the effect of dietary IRFC addition on growth performance inweanling piglets. In Exp.1, twenty-four barrows with initial body weight of 62.13± 2.01 kg were randomly divided intofour treatment groups, （the first three groups were fed diets supplemented with IRFC at 0%, 0.5% or 1.0% ad libitum,respectively, and the fourth group was fed diet supplemented with IRFC at 1.0% with a daily amount equivalent to 2%of body weight determined at the beginning of the experiment）, with six pigs per group, six replicates per treatment and1 pig per replicate. The animal trial lasted for 12 days. In Exp. 2, seventy-two healthy weaning piglets with an averagebody weight of 7.13 ~ 0.54 kg were assigned into 2 treatments according to sex and weight in a randomized completeblock design. Each treatment group includes 6 replicate pens and each pen has 6 pigs （3 barrows and 3 gilts）, which werefed a corn-soybean meal basal diet and a test diet supplemented with 10g/kg IRFC. The animal trial lasted for 28 days.The results showed that IRFC supplementation in diets had no significant effects （P 〉 0.05） on DE and ME values and theATTD of nutrients of the experimental diets in growing pigs. Diet supplemented with IRFC had no significant influence （P〉 0.05） on growth performance of weaning piglets. Different diet feeding levels also had no significant effects （P 〉 0.05）on DE and ME values and the ATTD of nutrients of the experimental diets in growing pigs. However, the moisture contentof the feces tended to decrease with the IRFC supplementation increasing in growing pigs （P = 0.08）. Further studies areneeded to explore the underlying mechanisms.

关 键 词： 消化代谢能 生长猪 断奶仔猪 不溶性纤维浓缩物 消化率 饲喂水平