动物营养学报 >

2017 , Vol. 29 >Issue 8: 2996 - 3003

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.08.045

研究简报 Short communications

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

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  • 江苏省农业科学院, 六合动物科学基地, 南京 210014
杨丽(1992—),女,甘肃白银人,硕士研究生,养殖专业。E-mail:15295595655@163.com

收稿日期: 2017-01-13

  网络出版日期: 2017-08-02

基金资助

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）

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

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  • Liuhe Animal Science Base, Jiangsu Province Academy of Agricultural Sciences, Nanjing 210014, China

Received date: 2017-01-13

  Online published: 2017-08-02

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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。

关键词： 物理有效纤维; 制粒; 山羊; 表观消化率

本文引用格式

杨丽, 高立鹏, 白云峰, 张凯, 孟梅娟, 宋谦 . 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[J]. 动物营养学报, 2017 , 29(8) : 2996 -3003 . DOI: 10.3969/j.issn.1006-267x.2017.08.045

Abstract

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×Xuhuai goats)with the body weight about 25 kg were selected, and the 4 goats were respectively fed with 4 different diets according to the 4×4 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) content and gross energy (GE), etc. The test was divided into 4 periods, and each period had 15 days with the pilot 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 goats.

Key words： peNDF; pelleted; goats; apparent digestibility

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