不同物理有效纤维水平饲粮制粒对山羊养分表观消化率的影响  

Effects of Pelleted Diets with Different Physically Effective Neutral Detergent Fiber Levels on Nutrient Apparent Digestibility of Goats

作　　者：杨丽[1] 高立鹏[1] 白云峰[1] 张凯[1] 孟梅娟 宋谦[1] 

机构地区：[1]江苏省农业科学院,六合动物科学基地,南京210014

出　　处：《动物营养学报》2017年第8期2996-3003,共8页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：江苏省农业自主创新基金[cx(15)1003];公益性(农业)行业科研专项(201203050-4)

摘　　要：本试验旨在研究不同物理有效纤维(peNDF)水平饲粮制粒对山羊养分表观消化率的影响。选取4只体重约为25 kg的波杂公山羊(波尔山羊×徐淮山羊),采用4×4拉丁方试验设计,4只试验山羊分别饲喂4种不同的饲粮。饲粮A、B分别为peNDF水平为22.69%的粉料、颗粒料,饲粮C、D分别为peNDF水平为31.69%的粉料、颗粒料。4种饲粮的中性洗涤纤维、粗蛋白质含量及总能等相等或接近。试验分为4期,每期15 d,其中预试期10 d,正试期5 d。结果表明:1)低peNDF水平下,与饲粮A相比,饲粮B显著提高了酸性洗涤纤维、粗蛋白质、干物质、有机物、钙、磷表观消化率及氮保留量、氮保留率与氮生物学价值(P<0.05);2)高peNDF水平下,与饲粮C相比,饲粮D显著提高了中性洗涤纤维、酸性洗涤纤维、粗蛋白质、干物质、有机物、钙、总能表观消化率及氮保留率(P<0.05);3)相同饲粮形态下,与高peNDF饲粮(饲粮C、D)相比,低peNDF水平饲粮(饲粮A、B)除钙表观消化率无显著提高(P>0.05)外,其余养分表观消化率均显著提高(P<0.05)。由本试验结果得出,在高和低2种peNDF水平下,饲粮经制粒均提高了山羊的养分表观消化率。This study aimed to investigate the effects of pelleted diets with different physically effective neutral detergent fiber （ peNDF） levels on nutrient apparent digestibility of goats. Four male hybrid goats （ Boer goats＆#215; Xuhuai goats） with the body weight about 25 kg were selected, and the 4 goats were respectively fed with 4 dif-ferent diets according to the 4＆#215;4 Latin square design of experiment. For the 4 diets, diet A was a powder diet with the peNDF level was 22.75%, diet B was a pelleted diet with the peNDF level was 22.75%, diet C was a powder diet with the peNDF level was 31. 76%, and diet D was a pelleted diet with the peNDF level was 31.76%. The 4 diets had the same or similar neutral detergent fiber （ NDF） content, crude protein （ CP） con-tent and gross energy （ GE） , etc. The test was divided into 4 periods, and each period had 15 days with the pi-lot test period of 10 days and formal experiment period of 5 days. The results showed as follows：1） under the low peNDF level, compared with the diet A, the diet B significantly increased the apparent digestibility of acid detergent fiber （ ADF） , CP, dry matter （ DM） , organic matter （ OM） , calcium （ Ca） and phosphorus （ P） , and nitrogen retention, nitrogen retention rate and nitrogen biological value （ P〈0. 05 ） . 2 ） Under the high peNDF level, compared with the diet C, the diet D significantly increased the apparent digestibility of NDF, ADF, CP, DM, OM, GE, Ca and GE, and nitrogen retention rate （ P〈0.05） . 3） Under the same diet form, compared with the high peNDF level diets （ diets C and D ） , in addition to the calcium apparent digestibility had no significant increase （ P〉0.05） , the rest of the apparent digestibility of nutrients in the low peNDF diets （diets A and B） were significantly increased （P〈0.05）. The results indicate that whether under high or low peNDF level, diets with pelleting treatment both can improve the nutrient apparent digestibility of

关 键 词：物理有效纤维 制粒 山羊 表观消化率 

分 类 号：S816[农业科学—饲料科学]