饲料添加剂双乙酸钠的5P营销策略     

谢清若  郑立文  李克林  凌新龙 《畜牧与饲料科学》2011,32(3)

基于产品(product)、价格(price)、地点(place)和推广(promotion)等市场营销4P策略的内容,结合双乙酸钠的特征、应用和市场现状,整合融入营销平台(platform),即从4P策略过渡到5P策略,并对双乙酸钠市场营销的5P策略实施进行了分析与探讨.  相似文献   

Biochemical properties of some high molecular weight subunits of wheat glutenin     

Johannes H.E. Moonen  Auke Scheepstra  Aris Graveland 《Journal of Cereal Science》1985,3(1):17-27

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Variability and Correlation between Exchangeable Sodium Percentage and Sodium Adsorption Ratio in Vertisols of Sudan     

《Communications in Soil Science and Plant Analysis》2012,43(19-20):2827-2838

Vertisols in the Sudan occur under different climatic zones, ranging from arid in the north to tropical monsoon in the south, with rainfall varying from 150 mm to 1000 mm per annum. In this study, the exchangeable sodium percentage (ESP) was estimated from the sodium adsorption ratio (SAR); values of SAR and ESP for all identified soil series of Vertisols in the Sudan were extracted from the available data. These data were used to examine the variability in SAR and ESP in these soils using coefficient of variation (CV) as an index and then to regress ESP on SAR for the three master horizons (A, AC, C) and pooled data for all horizon. Curvilinear, linear, quadratic, and cubic equations were used to examine the relation between ESP and SAR. The significance of the F ratio and correlation coefficient was tested for individual equation. The soil series were then sorted out into saline and nonsaline, sodic and nonsodic, and the ESP was regressed on SAR once again. The equations used for the regression were curvilinear and first‐, second‐, and third‐degree polynomial equations. Then analysis of variance (ANOVA) was used to screen any significant difference between the estimated values of ESP (using these equations and USDA salinity laboratory equation) on one hand and the actual (measured) values of ESP. The results revealed that ESP and SAR are highly variable irrespective of depth despite slight decrease with depth. Furthermore, ESP is more variable than SAR in horizons A and AC but less variable in horizon C. The regression equations indicated that ESP might be reasonably estimated from SAR. However, different equations were appropriate for different horizons. Moreover, the result indicated that in most of the cases the relation between ESP and SAR better fits quadratic equations. But for simplicity, linear equations for all horizons could be used to estimate ESP from SAR.  相似文献   

Selective Absorption of K over Na in Sugar Beet Cultivars and its Relationship with Yield and Quality in Two Contrasting Environments of Central Greece     

J. T. Tsialtas  & N. Maslaris 《Journal of Agronomy and Crop Science》2009,195(5):384-392

Selective absorption (SA) of K over Na (i.e. the preferential absorption of K over Na) has been proposed as a Na tolerance mechanism but genotypic variation for this trait has not been assessed with sugar beet in the field. Thus, the aim of this study was to explore the variation of SA in 14 sugar beet cultivars and to relate SA with yield and root quality in two sites of central Greece (Amfithea and Pyrgetos). Genotypic variation for SA was significant and the SA values were higher in Pyrgetos, the site with the lower soil K and Na concentrations. In Pyrgetos, a favourable environment for sugar beet growth, cultivars yielded more and root quality was better. In that site, a negative relationship between SA and yield (fresh root weight, sugar yield) was found indicating that strong Na exclusion from root is a disadvantage for high yielding. Negative SA–yield relationships were evident in Amfithea when five cultivars with very low SA values (<1.00) were excluded from the analysis. Combined all the cultivars, curvilinear functions were the best-fitted curves for the SA–yield relationships. In Amfithea, where sugar beets had lower water content in root (WCR), a significant, positive correlation between SA and % sucrose content in fresh root weight was found. This finding was ascribed to the dilution of sucrose in roots due to the increased WCR as a result of the increased root Na concentration. In both sites, SA was positively related with root K concentration and negatively with Na concentration. The positive correlations between SA and root α-amino N concentration indicated that sugar beet N nutrition could be affected by the genotypic ability to exclude Na from the root.  相似文献   

十二烷基硫酸钠对大豆基木材胶黏剂的改性作用   总被引：3，自引：0，他引：3  

魏起华  童玲  陈奶荣  林巧佳 《浙江林学院学报》2008,25(6):772-776

采用10.0g·kg^-1的十二烷基硫酸钠（SDS）改性质量分数为250.0g·kg^-1的大豆粉浆液,制成SDS改性大豆基木材胶黏剂（SF）,运用单因素和正交试验法考察了pH值、反应温度和反应时间对改性SF胶耐水胶合强度的影响。试验结果表明,SDS改性大豆基木材胶黏剂的最佳工艺：pH8,反应温度35℃,反应时间4h。改性后的SF胶Ⅱ类耐水胶合强度为0.70MPa。由红外光谱分析可知,SDS改性使大豆蛋白质分子大量的非极性基团外露,增加了蛋白质分子的疏水性,提高了改性SF胶的耐水胶合强度。图4表3参10  相似文献   

The effects of age on the erythrocyte sodium and potassium concentrations of dairy cows during late pregnancy and early lactation     

C. M. Mulei  R. C. W. Daniel 《Veterinary research communications》1990,14(1):63-70

Blood samples were taken at weekly intervals from 54 dairy cows (mainly Friesians and Jerseys) during the periods 8 weeks before and 8 weeks after calving. The cows were divided into two age groups; group 1 consisting of 26 cows aged 2 1/2 years and group 2 consisting of 28 cows aged 5–9 years. The changes in the erythrocyte sodium (ENa) and the erythrocyte potassium (EK) concentrations before and after calving were expressed as the slopes for each component regressed on weeks. In the older cows the concentration of ENa decreased (p<0.05) while that of EK increased (p<0.05) after calving. Both the ENa and EK concentrations varied significantly (p<0.01) between cows in the two age groups. The prepartum and postpartum ENa and the postpartum EK concentrations varied significantly (p<0.05) between weeks. EK type did not influence the changes in ENa or EK concentrations before or after calving.  相似文献   

9—羟基芴—9—甲酸和醇酯化反应的无水氯化钙催化剂     

文海  耐登 《内蒙古林学院学报》1998,20(2):84-86

无水氯化钙可代替硫酸催化酯化反应，探讨了氯化钙催化９－羟基芴－９－甲酸甲酯的条件，操作简便，反应温和，无腐蚀，减少了污染与产品纯化。  相似文献   

Evaluation of commercial cracker flours by test baking and study of changes occurring during sponge fermentation     

Linda C. Doescher  R.C. Hoseney 《Journal of Cereal Science》1985,3(3):261-270

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饮水高钠诱发的肉鸡腹水综合征的血液流变学特征   总被引：7，自引：2，他引：5  

张克春  王桂军 《中国兽医学报》1998,18(6):592-595

为查明高钠饮水与肉鸡腹水综合征的病因学关系，将２４０只健康ＡＡ肉鸡随机均分为试验Ⅰ、Ⅱ和对照３个组，从８日龄起分别饮用含Ｎａ＋为０．０６％、０．１２％和０．００％的饮水，动态对比观察各组肉鸡临床表现、血液红细胞压积（ＰＣＶ）、红细胞变形性（ＥＤ）、右心室（ＲＶ）和全心室（ＴＶ）的重量比（ＲＶ／ＴＶ）。结果表明，高钠饮水可以诱发腹水综合征；肉鸡在摄入过量Ｎａ＋时，出现肺动脉高压（ＰＨ）、ＰＣＶ增加和ＥＤ下降等血液流变学特性的改变，促进了腹水综合征的形成。  相似文献   

云南松针叶的耐火性模型研建   总被引：1，自引：0，他引：1  

李世友  刘文胜  左勇  刘会龙  赵文静  刘金龙 《林业资源管理》2009,(6)

用自行设计的装置对云南松针叶进行了耐火性试验,根据在1%红四氮唑溶液中浸泡后基部的颜色判别针叶的死活,计算了针叶在不同试验条件下的死亡率,建立了云南松针叶死亡率与平均叶长、受热时间、受热温度的关系模型。分析表明,影响云南松针叶耐火性的因子依次为受热温度>受热时间>平均叶长,宿存叶鞘对针叶有一定的保护作用。  相似文献