《Tab.2 Composition and nutrient levels of the basal diet (DM basis)》

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《"Effects of Spent Mushroom Substrate of Pleurotus eryngii as Fermentation Bed Padding on Growth Performance, Intestinal Microflora and Immunity of Weaning Piglets"》

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Note:（1）Per kg of complete feed supplements Cu（Cu SO4）6 mg，Zn（Zn SO4）80 mg，Fe（Fe SO4）80 mg，Mn（Mn SO4）3 mg，I（KI）0.15 mg，Se（Na2Se O3）0.15 mg，Co（Co Cl2）0.2 mg.（2）Per kg of complete feed supplements vitamin A 1 500 IU，vitamin D3200 IU，

Totally 120 ternary hybrid weaning piglets（Duroc×Landrace×Yorkshire）with the initial body weight of（8.0±0.5）kg were randomly divided into five groups according to consistent parity，the same variety，similar weight，half male half female，three replicates each group and eight piglets each replicate（half male half female）.The padding for control group was 50%sawdust+50%rice husk；experimental group I，100%spent mushroom substrate；experimental group II，15%sawdust+15%rice husk+70%spent mushroom substrate；experimental group III，25%sawdust+25%rice husk+50%spent mushroom substrate；and experimental group IV，35%sawdust+35%rice husk+30%spent substrate.The other conditions were exactly the same except for proportions of padding in each group.Corn-soybean meal diet was adopted.The basal diet of corn and soybean meal was prepared into powder complete feed according to the nutritional needs of weaning piglets recommended by US NRC（1998）.The diet composition and main nutrient levels are presented in Tab.2.