村财镇审管理模式及成效分析

总结长乐市推行村财镇审管理模式、组织机构和具体做法,通过村财镇审促进了农村基层党风廉政建设,从源头上杜绝腐败,维护农民合法权益.     

提高动物学实验教学效果的探索

动物学实验是动物学教学的重要环节,与教学效果密切相关。本文从准备动物实验材料、提高学生的主观能动性、注重应用现代教学手段及室内外学习相结合等方面阐述了如何提高动物学实验教学效果。     

棉花单核苷酸多态性标记研究进展

单核苷酸多态性标记已在农作物研究中得到广泛应用并取得重大进展。为了便利棉花SNP(Single nucleotide polymorphism)标记的研究和应用,介绍了利用基因芯片、简化基因组测序、重测序等在棉花中开发SNP标记的方法 ,综述了SNP标记在棉花遗传图谱构建、数量位点的定位和分子标记辅助育种、基因组测序以及系统进化等研究中的应用。并对异源四倍体棉花中SNP标记开发时,同源序列位点和部分同源序列位点上的SNP标记辨别问题进行了系统探讨,对其快捷的开发、检测方式和在数量基因定位中的应用前景进行了展望。     

生物技术在农业领域的应用

生物技术包括基因工程、细胞工程、酶工程等,在农业领域有着广阔发展前景.生物技术可保障粮食安全,促进农村农业经济的发展,提高农业产出效益,同时能为医药工业及其它产业提到原料.农业生物技术是新兴的现代技术,还不能在传统农业中大规模推广应用.     

施肥对海南省西华农场2龄橡胶树径围生长的影响

用7种配方肥料，在海南省西华农场上进行了为期1年的2年生橡胶树施肥试验。结果表明：不同施肥处理对胶树径围增长效应之间有极显著的差异。其中，处理6(施氧化镁0.4 kg/株)、处理8(施尿素0.6 kg/株、施过磷酸钙1.2 kg/株、施氧化镁0.4 kg/株、施干牛粪6 kg/株)与对照相比，差异极显著，分别比对照增长25.5%、26.4%；其余处理与对照相比，差异不显著，其中，单施尿素(0.6 kg/株)效果最差，单施氯化钾(0.4 kg/株)效果较差。     

Fertilizer value of nitrogen in hen and broiler manure after application to spring barley using different application timing

The nitrogen (N) fertilizer effect of layer hen and broiler manure applied at different times on spring barley yield was studied in seven Swedish field experiments during 2005–2008. Two experiments had parallel field incubations to study N release after fertilizer application. The effect of total N in manure on N offtake was 30–40% that of mineral N, except in a dry year, when the effect was very low. Although the relative proportions of ammonium N, uric acid N and other N differed between the hen and broiler manure, the effect of total N was similar for both. In field incubations, mineral N decreased from 75 to 60% of total N applied in hen manure, whereas it increased from 20 to 50% in broiler manure, because of net immobilization and release, respectively. The limited fertilizer nitrogen replacement value, corresponding to only 30–40% of total N, could be as a result of ammonia volatilization after rather shallow incorporation with harrow. Net N release from broiler manure lasted for 6–8 weeks after application, after which it generally ceased. In some cases, manure application in early spring gave better yield effects than application at sowing, probably because of better synchronization of the N release with crop N requirements. The residual N effect on the N offtake in crop in the year after manure application was on average 3% of the total N applied, equivalent to a fertilizer replacement value of about 6%.     

Current status and trends of wheat genetic transformation studies in China

More than 20 years have passed since the first report on successful genetic transformation of wheat. With the establishment and improvement of transformation platform, great progresses have been made on wheat genetic transformation both on its fundamental and applied studies in China, especially driven by the National Major Project for Transgenic Organism Breeding, China, initiated in 2008. In this review, wheat genetic transformation platform improvement and transgenic research progresses including new techniques applied and functional studies of wheat quality, yield and stress tolerant related genes and biosafety assessment are summarized. The existing problems and the trends in wheat transformation with traditional methods combined with genomic studies and genome editing technology are also discussed.     

《生物化学》教学方法的探讨

生物化学是从分子水平阐明生命现象本质的一门学科，是临床、护理和药检学的基础课程。根据生物化学的课程特点以及人才培养模式的指导思想，在教学实践中，采用多种教学法相结合，灵活运用，可有效提高教学质量和学生的基本技能。     

An investigation of links between metabolic rate and feed efficiency in European sea bass Dicentrarchus labrax

Feed efficiency (FE) is the amount of body weight gain for a given feed intake. Improving FE through selective breeding is key for sustainable finfish aquaculture but its evaluation at individual level is technically challenging. We therefore investigated whether individual routine metabolic rate (RMR) was a predictor of individual FE in the European sea bass Dicentrarchus labrax, a major species in European mariculture. The European sea bass has three genetically distinct populations across its geographical range, namely Atlantic (AT), West Mediterranean (WM), and East Mediterranean (EM). We compared FE and RMR of fish from these three populations at 18 or 24 °C. We held 200 fish (62 AT, 66 WM, and 72 EM) in individual aquaria and fed them from ad libitum down to fasting. FI was assessed for an ad libitum feeding rate and for a fixed restricted ration (1% of metabolic body weight·day⁻¹, with metabolic body weight = body weight^0.8). After being refed 12 wk in a common tank, individual RMR was measured over 36 h by intermittent flow respirometry. There was a significant effect of temperature whereby fish at 18 °C had greater mean FE (P < 0.05) and lower RMR (P < 0.001). There was also a significant effect of population, where AT fish had lower FE (P < 0.05) and greater RMR (P < 0.001) than WM and EM, at both temperatures. Despite these differences in temperature and population means, individual FE and RMR were not significantly correlated (P > 0.05). Therefore, although the results provide evidence of an association between metabolic rate and FE, RMR was not a predictor of individual FE, for reasons that require further investigation.