科技大世界

超声波能提高玉米乙醇产量美国爱荷华州立大学农业和生物系统工程研究人员大卫·格理维尔表示,他领导的研究小组利用超声波能让玉米浆生产出更多的乙醇。传统的干磨加工方法不能将玉米粒中所有的淀粉转换成单糖并发酵生成乙醇。研究小组发现,利用超声波,能将经过初加工后碾碎的     

Akwa Ibom州湿地土壤可持续利用的战略研究

AkwaIbom州人均农业生产用地随着人口的增长而变小。当地农民正逐渐将那些适宜于作物生长的洪泛平原及湿地划为农垦区。通过对湿地利用状况的调查研究表明 ,洪泛平原受耕作措施的影响 ,退化比较严重。对Enyong河流域内湿地土壤的特性分析表明 ,该流域贫瘠土壤有变成具有中等肥力土壤的潜力。为重建洪泛平原区的农业 ,采用了参与式评价方法 ,与当地居民共同参与研究 ,并激发他们自我反省的意识 ,激发了农民的创造力 ,农民逐渐地改造已退化的湿地土壤 ,并决心为他们自己和子孙后代把湿地变成可持续利用的资源     

尼罗罗非鱼饵料中蛋白质与能量的比率

尼日利亚水产工作者将平均体重约3g的尼罗罗非鱼投喂粗蛋白质含量分别为20%(低)、25％(中)、30％(高)和能量含量分别为12600kJ(低)、14700kJ(中)、16800kJ(高)的饵料进行试验。每种试验饵料投喂3组鱼取其平均值。结果表明：投喂高蛋白质高能量、高蛋白质低能量、中蛋白质低能量、中蛋白质高能量、高蛋白质中能量、中蛋白质中能量、低蛋白质低能量、低蛋白质高能量、     

尼日利亚将建立500个木薯加工中心

据尼日利亚国家农业机械化中心、联邦农业和乡村发展部消息，尼日利亚联邦政府将在全国建立500个木薯加工中心。     

Implications of crude oil pollution on natural regeneration of plant species in an oil-producing community in the Niger Delta Region of Nigeria

The study evaluated the impact of crude oil pollution on natural regeneration of plant species in a major oil-producing community in the Niger Delta region of Nigeria. Three sites—unpolluted site(US), polluted and untreated site(PUS), and polluted and treated site(PTS)—were purposively chosen for the study. The seedling emergence method was used to evaluate soil seed banks in the various sites at two depths, 0 to 10 cm and 10 to 20 cm. Woody-plant species richness, abundance, and diversity were higher in the US seed bank than in the PUS and PTS seed banks. The highest number of non-woody plants was observed in the US, followed by the PTS, and then the PUS. Both species richness and diversity of non-woody plants were highest at the US, followed by the PUS, and lowest in the PTS. Woody species in the US seed bank were 87.5% and 80% dissimilar with those of the PUS and PTS at 0–10 cm and 10–20 cm respectively. No variation was observed between woody species in the PUS and PTS seed banks. Non-woody species at 0-10 cm US seed bank were 73.08% dissimilar with those of PUS at the two soil depths and 81.48/88.46% dissimilar with those of the 0–10/10–20 cm of the PTS respectively. At 10–20 cm, non-woody species of the US were 69.66% dissimilar with those from each of the two soil depths in PUS; and 73.91/81.82% dissimilar with those of 0–10/10–20 cm of the PTS respectively. Non-woody species variation between the PUS and PTS was higher at 10–20 cm than 0–10 cm. The poor seed bank attributes at the polluted sites demonstrates that crude oil pollution negatively affected the natural regeneration potential of the native flora because soil seed banks serve as the building blocks for plant succession. Thorough remediation and enrichment planting are recommended to support the recovery process of vegetation in the polluted areas.     

疫情动态

西非埃博拉病毒病;保加利亚发现蓝舌病疫情已致700多只羊死亡 流行病学与监测2014年8月7日至9日,几内亚、利比里亚、尼日利亚和塞拉利昂总计报告69例新发埃博拉病毒病（实验室确诊、可能和疑似病例）和52例死亡。     

尼日利亚的家具制造业有利可图

尼日利亚：Lambs家具有限公司成立于20年前,当时的规模很小,而如今这家公司的交易额已达到百万奈拉。产品主要是室内家具品种,如：椅子、桌子、凳子等等。公司老板Lambert Aeholonu称，目前该公司在通常的情况下一周就能完成一套起居室家具的生产，但由于尼日利亚的电力供应不足，影响了生产能力，延迟了交货期。尼日利亚目前原材料的价格都很昂贵，尤其是那些特别种类的高品质木材，     

鸡、火鸡和鸭对传染性法氏囊病毒敏感性存在差异

最近尼日利亚伊巴丹大学的研究人员对不同家禽品种对传染性法氏囊病毒（IBDV）的敏感性进行了研究。他们采用相同的病毒剂量2×10^35LD50分别对鸡、火鸡和鸭进行政毒。