在华韩国企业倒闭原因及对策研究

通过对在华韩国企业倒闭现象的研究,从中国投资环境的变化、韩国企业在华投资的战略等方面分析了其在华投资失败的原因,提出了加强本土化、选择最佳投资区域以及采取独资经营等相应对策。     

红松果材兼用林的初步研究

红松既是珍贵的用材树种，又是驰名中外的名，优，特干果树种，红松人工林树高４－６ｍ时即分杈，这里营造人工用材林的难题，但用“逆向思维”观察可顺其自然，将其培养为果材兼用林，本研究根据红松人工林生长结实的特性，提出建立红松果材林的立地选择，良种培育和栽培技术，同时对当前建立红松果材林基地应做好的三项工作提出了意见。     

红松树栖真菌群落中物种多样性与病害关系(Ⅵ)

以红松不同栖息地的树栖真菌分离作为种群个体参数，采用多样性指数和均匀性指标对树栖真菌进行鑫样性比较，结果表明：Ｓ对栖真菌多样性和均匀度赵高，病害发生的可能性越低，呈负相关。     

不同林龄红松人工林土壤养分及微量元素的变化规律

研究了不同林龄人工红松林土壤水解氮、有效磷、速效钾及微量元素变化规律。结果表明,不同林龄阶段红松人工林根际和非根际土壤水解氮、速效钾和有效磷质量分数均大于天然次生林;水解氮质量分数均表现出先降低后升高再降低的趋势,但总体上呈现随年龄增长而降低的趋势;与水解氮不同,速效钾和有效磷质量分数则表现出先升高再降低;红松人工林不同发育阶段根际土壤有效铜、有效铁、有效锌和有效锰的质量分数均大于红松人工林不同发育阶段非根际土壤的质量分数。综合各因素和已有研究结论,最终得出混交林这种经营方式更适合研究区域内红松的生长。     

透光抚育对红松阔叶林群落结构与生产力的影响

采用样带网格调查方法和群落重要值分析方法，研究透光抚育（全透光、半透光、未透光）对红松阔叶混交林群落（人天混群落）的树种组成结构、径级分布、蓄积量和红松蓄积生产力的影响效果。结果表明：沿由小到大的透光强度，人天混群落中红松重要值依次增大（0．499～1．000），透光有利于人天混群落中红松优势地位增强；红松大径木比例依次增加（0．00％～54．0％），小径木比例依次减少（74．9％～2．7％），透光有利于人天混群落中红松大径木比例提高；群落蓄积量依次增加（60．2475～230．4051m^3／hm^2），红松蓄积生产力依次增加（1．2692～5．3603m^3／hm^2·a），透光有利于人天混群落蓄积量及红松蓄积生产力的提高。     

Immunolocalization of sex steroid receptors in the epididymis and ductus deferens of immature and mature Japanese Quail, Coturnix Japonica

The goal of this study was to determine whether in the Japanese quail the male genital tract contains receptors for progesterone, androgen and estrogen (PR, AR and ER, respectively), which have significant roles in reproductive functions, and whether their localization changes during sexual maturation. The epididymis and ductus deferens (middle and ampulla regions) of immature (approximately 30-day-old) and mature male Japanese quail were collected and frozen sections of them were immunostained for PR, AR and ER. The immunoreaction products for AR and PR were found in the nuclei of epithelial cells in the efferent ductules, epididymal duct, and the middle and ampulla regions of the ductus deferens of mature and immature birds. In the mature birds, the epithelial cells of the efferent ductules, epididymal duct, and the middle and ampulla regions of the ductus deferens were positive for ER, although some of the cells in the ductus deferens were negative. The epithelial cells of the ductules in the epididymis stained positive for ER, but the immunoreactions were negligible in the ductus deferens of immature birds. These results suggest that the epididymis and ductus deferens in quail possesses PR, AR and ER receptors. Each receptor is expressed before sexual maturation, although enhancement of ER expression may occur during maturation.     

中药饲料添加剂对法国肉用鹌鹑增重及肉质的影响

用1周龄法国肉用鹌鹑120只,随机分成4组,每组3个重复,每个重复10只.第1～3组为试验组,分别在基础日粮中添加1％的党参、0.5％党参 0,5％黄芪、0.5％党参 0.5％艾叶,第4组为对照组.试验期为2～6周龄,共35d,每7d称重一次.试验结果表明,各试验组的增重与对照组相比,差异均显著(P<0.05);其中第3组效果最好(P<0.01).日粮蛋白质表观代谢率和料肉比,试验组均优于对照组(P<0.05).各组间的肌肉概略养分、pH值和胴体品质,除第1组的屠宰率略高外(P<0.05),其余差异均不显著(P>0.05).嫩度值差异极显著(P<0.01).血清总蛋白质和A/G差异不显著(P>0.05),但血糖含量差异较大(P<0.01).     

醇香鹌鹑彩蛋肠的研制

先将鹌鹑蛋制成醉蛋，再加入与氢氧化钠、食盐、茶汁一起混匀的蛋液，灌入肠衣中，经水浴加热即成成品。     

家鹑与野生日本鸣鹑群体微卫星DNA标记的遗传学分析

选择10个微卫星标记位点，合成引物对微山湖野生日本鸣鹑和家鹌鹑各40只进行PCR扩增，变性聚丙烯酰胺凝胶电泳检测分型，并对其品种内和品种间的遗传变异进行群体遗传学分析，从分子水平上揭示这两个鹌鹁群体的遗传结构关系、亲缘关系和遗传分化程度，为鹌鹑的遗传资源研究提供新资料。     

Ultrasonographic evaluation of renal dimension and resistive index in clinically healthy Korean domestic short-hair cats

Renal length, height, width, resistive index (RI), size of cortex, and medulla were determined by renal ultrasonography in 50 healthy Korean domestic short-hair cats. In the sagittal plane, the renal length was 3.83 ± 0.51 cm (mean ± SD) in the left kidney and 3.96 ± 0.48 cm in the right kidney, whereas the renal height was 2.42 ± 0.27 cm in the left kidney and 2.36 ± 0.28 cm in the right kidney. In the transverse plane, the renal height was 2.42 ± 0.28 cm in the left kidney and 2.38 ± 0.27 cm in the right kidney, whereas the renal width was: 2.65 ± 0.35 cm in the left kidney and 2.63 ± 0.31 cm in the right kidney. In the dorsal plane, the renal length was 3.84 ± 0.53 cm in the left kidney and 3.97 ± 0.54 cm in the right kidney, whereas the renal width was 2.65 ± 0.34 cm in the left kidney and 2.66 ± 0.33 cm in the right kidney. There were no significant differences (p > 0.05) among the same structure sizes measured in different planes. In the sagittal plane, the size of the renal cortex was 0.47 ± 0.08 cm in the left kidney and 0.47 ± 0.08 cm in the right kidney, whereas of the size of the renal medulla was 0.55 ± 0.30 cm in the left kidney and 0.50 ± 0.07 cm in the right kidney. RI evaluated by pulsed wave Doppler sonography was 0.52 ± 0.05 in the left kidney and 0.55 ± 0.05 in the right kidney. The actual renal dimensions determined by gross examination were not statistically different from those determined by ultrasonography. Furthermore the renal dimensions and RI were statistically correlated to the body weight of cats.