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首页> 外文期刊>Bulletin of Animal Health and Production in Africa >IN SACCO DEGRADABILITY OF GRASS HAY AND RUMEN CHARACTERISTICS IN SHEEP FED UREA AMMONIATED RICE STRAW OR UNTREATED SUPPLEMENTED RICE STRAW
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IN SACCO DEGRADABILITY OF GRASS HAY AND RUMEN CHARACTERISTICS IN SHEEP FED UREA AMMONIATED RICE STRAW OR UNTREATED SUPPLEMENTED RICE STRAW

机译：饲用尿素氨化稻草或未经处理的增补稻草中草皮和瘤胃特性的SACCO降解性

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The objective of the study was to examine changes in rumen ecology and rumen degradation kinetics when three rumen fistulated sheep were fed either urea-ammoniated rice straw (Diet 1) or untreated rice straw supplemented with Griffonia simplicifolia (Diet 2), Jaswminum dichotomum (Diet 3) or wheatbran (Diet 4). Rumen fluid was collected at 3, 6, 9, 12 and 24 hours after feeding for determination of rumen pH and rumen ammonia nitrogen. Dacron bags containing bracchiaria hay were incubated in the rumen for 3, 6, 12, 24, 48, 72, 96 and 120 hours. Disappearance of dry matter (DM) and neutral detergent fibre (NDF) and degradation kinetics were determined. Rumen pH of Diets 1 and 2 were significantly different (P < 0.05) from the rumen pH of Diets 3 and 4 . Rumen ammonia nitrogen was, however, not affected by the diet fed (P > 0.05). For DM degradability the potentially degradable fraction (b) and the potential degradability (a+b) were significantly affected by the diet fed (P < 0.05). For NDF degradability, the intercept (a), potentially degradable fraction (b) and time lag (TL) were all significantly affected by the diet fed (P < 0.05). It was concluded that supplementation of untreated rice straw with appropriate supplements gave results comparable to the feeding of urea-ammoniated rice straw.
机译：这项研究的目的是研究给三只瘤胃瘘羊饲喂尿素氨化稻草（饮食1）或未处理过的稻草补充了简单的Griffonia simplicifolia（饮食2），Jaswminum dichotomum（饮食）后，瘤胃生态和瘤胃降解动力学的变化。 3）或麦麸（饮食4）。进食后3、6、9、12和24小时收集瘤胃液，以测定瘤胃pH和瘤胃氨氮。在瘤胃中将含有臂杆干草的Dacron袋孵育3、6、12、24、48、72、96和120小时。确定了干物质（DM）和中性洗涤剂纤维（NDF）的消失以及降解动力学。饮食1和2的瘤胃pH与饮食3和4的瘤胃pH显着不同（P <0.05）。但是，瘤胃氨氮不受饲喂日粮的影响（P> 0.05）。对于DM的可降解性，饲喂日粮显着影响了潜在可降解部分（b）和潜在可降解性（a + b）（P <0.05）。对于NDF的可降解性，截留率（a），潜在可降解部分（b）和时间滞后（TL）均受饲喂日粮的显着影响（P <0.05）。结论是，用未经处理的稻草补充适当的补充剂，其结果可与饲喂尿素氨化稻草的结果相媲美。

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