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生态型微生态制剂预混料饲喂PIC猪应用评价研究 被引量:6
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作者 艾必燕 黄文涛 +1 位作者 冉华山 潘永全 《粮食与饲料工业》 CAS 2002年第9期27-28,31,共3页
选用 32kg左右五元配套系优质瘦肉型PIC商品代中猪 35 0头 ,随机分成试验组和空白对照组。试验组在对照组日粮基础上添加 1%的猪用复合微生态制剂预混料 ,进行为期 94d的饲养试验。研究结果表明 :试验组猪比对照组猪平均日增重增加 37.2... 选用 32kg左右五元配套系优质瘦肉型PIC商品代中猪 35 0头 ,随机分成试验组和空白对照组。试验组在对照组日粮基础上添加 1%的猪用复合微生态制剂预混料 ,进行为期 94d的饲养试验。研究结果表明 :试验组猪比对照组猪平均日增重增加 37.2 4g,即提高了 4 .73% ;料肉比降低 9.4 0 % ;净增重耗料成本减少 9.5 1%。研究结果证明 ,该生态型猪用复合微生态制剂预混料对猪具有良好的饲养效果及明显的经济。 展开更多
关键词 应用评价 预混料 微生态制作 PIC猪 生长性能 经济效益 饲料
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PBL教学策略在“生态微缩景观的设计与制作”中的应用
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作者 赵红波 周秀杰 《中学生物教学》 北大核心 2021年第11期25-27,共3页
以"生态微缩景观的设计与制作"为例,运用PBL教学策略,创设真实的教学情境,以问题激发学生自主探究,以单元整体为教学框架,通过学生自主设计实验方案、野外采集实验材料、针对典例分析生态微缩景观的制作条件、制作微缩景观并... 以"生态微缩景观的设计与制作"为例,运用PBL教学策略,创设真实的教学情境,以问题激发学生自主探究,以单元整体为教学框架,通过学生自主设计实验方案、野外采集实验材料、针对典例分析生态微缩景观的制作条件、制作微缩景观并进行展示交流评价,以培养学生的生命观念、科学思维、科学探究及社会责任。 展开更多
关键词 PBL教学 核心素养 生态缩景观的设计与制作
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Effects of Compound Probiotics on Intestine and Intestinal Aeromonas hydrophila of Fish 被引量:3
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作者 朱芝秀 邓舜洲 +4 位作者 张丽珍 徐添乐 李敏 刘小兰 柳仲 《Agricultural Science & Technology》 CAS 2016年第11期2622-2626,共5页
[Objective] This study was conducted to develop compound probiotics that can be used as the alternatives of chemical drugs and antibiotics in aquaculture. [Method] Different concentrations of EM (effective microorgan... [Objective] This study was conducted to develop compound probiotics that can be used as the alternatives of chemical drugs and antibiotics in aquaculture. [Method] Different concentrations of EM (effective microorganisms) and Bacillus amyloliquefaciens were mixed at a ratio of 1:1, and sprayed on fish feed. The growth of intestinal villi of the fishes that had been fed with the feed mixed with compound probiotics for three months was observed; meanwhile, the content of in- testinal Aeromonas hydrophila was detected by real-time quantitative PCR. |Result] The compound probiotics promoted the development of intestinal villi, and inhibited the growth of A. hydrophila, and the effects were also concentration dependent. However, the compound probiotics did not increase the thickness of the intestinal serous layer, muscular layer and submucosal layer. [Conclusion] The compound probiotics we prepared can be used and popularized in aquiculture as it can inhibit the growth of A. hydrophila. 展开更多
关键词 PROBIOTICS Aeromonas hydrophila EFFECTS
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Mechanisms of therapeutic effects of rhubarb on gut origin sepsis 被引量:27
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作者 陈德昌 王虑 《Chinese Journal of Traumatology》 CAS 2009年第6期365-369,共5页
It is proposed that gut-liver-lung axis plays an important role in the pathophysiologic development of the critical illness, and it induces excessive inflammatory response in vivo and multiple organ dysfunction syndro... It is proposed that gut-liver-lung axis plays an important role in the pathophysiologic development of the critical illness, and it induces excessive inflammatory response in vivo and multiple organ dysfunction syndrome. The mechanisms of therapeutic effects of rhubarb on critical patients are studied based on the theory of Chinese traditional medicine. Researches demonstrate that rhubarb can be used to protect gut barrier, maintain intestinal microecological environment and prevent bacterial translocation. It also can be used to inhibit the release of inflammatory mediators by liver inflammatory-effector cells, reduce inflammatory reaction in the liver and protect hepatic cell functions. Furthermore, rhubarb can be used to reduce pulmonary vascular permeability and extenuate pulmonary edema, inhibit the release of neutrophil myeloperoxidase, and lower the level of inflammatory response and decrease inflammatory mediators in circulation. The above results indicate that rhubarb may interrupt or partly interrupt the gut-liver-lung axis after trauma and reduce the intensity of systemic inflammatory response syndrome. Therefore, rhubarb may obviously lower the incidence of multiple organ dysfunction syndrome and be used to prevent and treat systemic inflammatory response syndrome and multiple organ dysfunction syndrome after trauma. 展开更多
关键词 SEPSIS Systemic inflammtory response syndrome Medicine Chinese traditional
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