复合酶制剂对几种糟渣类原料养分利用率和代谢能的影响

发布时间：2018-02-08 14:41

本文关键词： 糟渣复合酶制剂养分利用率代谢能临武鸭　出处：《动物营养学报》2017年12期 　论文类型：期刊论文

【摘要】：本试验旨在研究临武鸭对几种糟渣类原料(白酒糟、啤酒糟、2种酱油渣、灵芝菌糠、柑橘渣和甘蔗糖渣)的养分利用率和代谢能,及添加复合酶制剂(蛋白酶、纤维素酶和木聚糖酶)对几种糟渣类原料养分利用率和代谢能的影响。试验选用48只体重2.0 kg左右的健康成年临武鸭公鸭,随机分为8组,每组6个重复,每重复1只鸭。采用绝食强饲-全收粪法进行代谢试验,将待测原料与无氮饲粮按1∶2的重量比混合配成试验原料,每种原料均设对照组和添加复合酶制剂组(试验原料中添加250 mg/kg的复合酶制剂),对照组和添加复合酶制剂组的试验分2个批次进行,测定添加复合酶制剂对临武鸭几种糟渣类原料养分利用率和代谢能。结果表明:临武鸭对几种糟渣类原料的干物质(DM)、粗蛋白质(CP)、粗脂肪(EE)和粗纤维(CF)表观利用率分别为30.73%~51.08%、17.65%~75.62%、10.85%~91.19%和10.84%~67.05%,表观代谢能(AME)和真代谢能(TME)分别为4.58~15.20 MJ/kg和5.57~17.17 MJ/kg。添加复合酶制剂后临武鸭对几种糟渣类原料的DM、CP、EE和CF的有效营养改进值(ENIV)分别为6.46~41.37 g/kg、0.33~13.23 g/kg、0.09~9.73 g/kg和0.70~7.84 g/kg,TM E提高了0.13~1.68 M J/kg。由此可见,添加复合酶制剂能够一定程度地提高临武鸭对糟渣类原料的养分利用率和代谢能。
[Abstract]:The purpose of this experiment was to study the nutrient utilization and metabolic energy of Linwu duck for several kinds of raw materials (white lees, beer lees, two kinds of soy residue, Ganoderma lucidum bran, citrus dregs and sugarcane sugar residue), and to add complex enzyme (protease). The effects of cellulase and xylanase on nutrient utilization and metabolic energy of several kinds of raw materials of lees were studied. 48 healthy adult Linwu male ducks weighing about 2.0 kg were randomly divided into 8 groups with 6 replicates in each group. The metabolic test was carried out with the method of hunger strike and total fecal collection for each repeated duck. The tested raw materials were mixed with nitrogen-free diet at the weight ratio of 1: 2 to form the experimental raw materials. Each raw material was divided into two groups: control group and compound enzyme preparation group. The nutrient utilization rate and metabolic energy of several kinds of raw materials of lees and dregs of Linwu duck were determined by adding compound enzyme. The results showed that the apparent utilization ratio of dry matter (DMN), crude protein (CPP), crude fat (EEE) and crude fiber (CFC) of several kinds of raw materials of lees of Linwu duck (Linwu duck) were determined. The effective nutritional improvement value of DMCPEE and CF in Linwu duck were 6.46 ~ 41.37 g / kg and 0.3313.23 g 路kg ~ (-1) 0.3313.23 g 路kg ~ (-1) and 0.707.84 g 路kg ~ (-1), respectively, 4.585.20 MJ/kg and 5.57 ~ 17.17 MJ / kg 路kg ~ (-1), respectively. The effective nutritional improvement values of DMCPEE and CF for several kinds of waste materials were 6.46 ~ 41.37 g / kg and 0.3313.23 g 路kg ~ (-1) 路kg ~ (-1) 路kg ~ (-1) 路kg ~ (-1) 路kg ~ (-1) 路kg ~ (-1), respectively. It's 0.13m / kg higher than 1.68m / kg, so you can see, The addition of compound enzyme could improve the nutrient utilization and metabolic energy of Linwu duck to a certain extent.
【作者单位】：中国农业科学院麻类研究所;湖南省畜牧兽医研究所;湖南畜禽安全生产协同创新中心;
【基金】：国家水禽产业技术体系建设专项资金资助(CARS-43-39)
【分类号】：S834.5

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