| 小麦秸与非常规饲料组合效应的研究 |
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| 引用本文： | 孟梅娟,涂远璐,白云峰,严少华,高立鹏,刘萍,刘建.小麦秸与非常规饲料组合效应的研究[J].动物营养学报,2016(9):3005-3014. |
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| 作者姓名： | 孟梅娟 涂远璐 白云峰 严少华 高立鹏 刘萍 刘建 |
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| 作者单位： | 江苏省农业科学院动物科学基地,南京,210014 |
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| 基金项目： | 江苏省农业自主创新基金(cx(14)2103)，公益性(农业)行业科研专项(201203050-4) |
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| 摘 要： | 本试验旨在探讨小麦秸与非常规饲料间的组合效应。利用体外产气法,评价了小麦秸与喷浆玉米皮、大豆皮、橘子皮和苹果渣分别按0∶100、25∶75、50∶50、75∶25、100∶0比例进行组合的48 h体外发酵总挥发性脂肪酸(TVFA)浓度和干物质降解率(DMD)、酸性洗涤纤维降解率(ADFD)、中性洗涤纤维降解率(NDFD)以及其组合效应。结果表明:1)在小麦秸与喷浆玉米皮、大豆皮、橘子皮、苹果渣的各组合中,当小麦秸比例为25%时,TVFA浓度均大于小麦秸比例为50%、75%、100%时。2)随着小麦秸比例的增大,小麦秸与喷浆玉米皮、大豆皮、橘子皮、苹果渣组合的DMD逐渐降低,小麦秸与喷浆玉米皮、大豆皮组合各比例之间的DMD差异显著(P0.05)。3)随着小麦秸比例的增大,小麦秸与大豆皮组合的NDFD和ADFD逐渐降低,各比例之间差异显著(P0.05)。在小麦秸与橘子皮的组合中,当小麦秸比例为50%时,NDFD和ADFD最大。4)当小麦秸比例为50%时,小麦秸与橘子皮、苹果渣的组合对NDFD和ADFD的组合效应值最大,显著高于其他各比例(P0.05);当小麦秸比例为75%时,小麦秸与喷浆玉米皮的组合对NDFD和ADFD的组合效应值最大,显著高于其他各比例(P0.05)。综上所述,小麦秸与大豆皮、喷浆玉米皮的最优组合是75∶25。小麦秸与橘子皮、苹果渣的最优组合是50∶50。
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| 关 键 词： | 小麦秸 非常规饲料 挥发性脂肪酸 降解率 组合效应 |
Combination Effects on Wheat Straw and Non-Conventional Feeds |
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| Abstract: | This experiment was conducted to investigate the combination effects of wheat straw ( WS ) and non-conventional feeds. Combinations of WS with spouting corn bran ( SCB ) , soybean hulls ( SH ) , orange peel ( OP) and apple pomace ( AP) were mixed in the proportion of 0∶100, 25∶75, 50∶50, 75∶25 and 100∶0, respectively, and rumen fermentation in vitro was adopted to evaluate combination effects by analysis of total volatile fatty acids ( TVFA) concentration, dry matter degradation rate ( DMD) , neutral detergent fiber degra-dation rate ( NDFD) and acid detergent fiber degradation rate ( ADFD) after 48 h. The results showed as fol-lows:1) in the combinations of WS with SCB, SH, OP and AP, when the proportion of WS was 25%, the TVFA concentration was higher than that of the WS proportions of 50%, 75% and 100%. 2) With the increas-ing of the proportion of WS, the DMD of combinations of WS with SCB, SH, OP and AP gradually de-creased; the DMD of combinations of WS with SCB and SH had significant difference in each proportion ( P<0.05). 3) With the increasing of the proportion of WS, the NDFD and ADFD of combinations of WS with SCB and SH gradually decreased, and had significant difference in each proportion ( P<0.05) . In the combina-tion of WS with OP, the NDFD and ADFD were the highest when the proportion of WS was 50%. 4) In the combinations of WS with OP and AP, when the proportion of WS was 50%, the combination effect values of NDFD and ADFD were the highest, which was significantly higher than the other proportions ( P<0.05); in the combination of WS with SCB, when the proportion of WS was 75%, the combination effect values of ND-FD and ADFD were the highest, which were significantly higher than the other proportions (P<0.05). It is concluded that the combinations of WS with SH and SCB in proportion of 75∶25, and the combinationsof WS with AP and OP in proportion of 50∶50 have the best combination e effects in this experiment. |
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| Keywords: | wheat straw non-conventional feeds volatile fatty acids degradation rate combination effects |
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