蜂针疗法的临床反应

蜂针是一种生物针，有其自身的规律，只能顺其自然，因势利导，不能操之过急。否则，即会产生医疗失误。蜂疗工作者必须清楚“蜂毒过敏”与“蜂毒中毒”的区别，必需掌握“无痛蜂针”操作技巧，保证蜂疗过程中的无痛苦及安全性，才能让蜂针疗法普及到千家万户。     

粤引澳卡菠萝多点试验研究

粤引澳卡菠萝从澳大利亚引进,通过多年多点种植及对其品质、产量和适应性等方面试验观察。结果表明,粤引澳卡果实较大,果形较好,果肉品相、果实品质、丰产性较无刺卡因好,且适合广东种植。     

优质稻核心种质绿珍占8号的创建与利用

通过连续改良将华南晚籼优质稻血缘与早籼优良种质融合,创造出早晚兼用型优质稻核心种质绿珍占8号;进一步利用地理远缘优质稻澳洲袋鼠丝苗和野生稻、粳稻、籼稻新育成种三源92与之优化配组,经定向选择育成优质稻新品种绿黄占、绿源占1号和绿源占7号。讨论了优质稻改良中生态型间、地理远缘、亚种间、种间育种材料血缘渗透和核心种质创建与利用有关问题。     

寡果糖对蛋用鹌鹑生产性能、脂肪代谢、免疫和内分泌机能的影响

10月龄蛋用鹌鹑 50羽 ,随机分为对照组 (基础日粮 )和试验组 (基础日粮添加 0 9%寡果糖 ) ,研究日粮添加寡果糖 (FOS)对蛋用鹌鹑生产性能、脂肪代谢、免疫及内分泌机能的影响。结果表明 :试验组鹌鹑的产蛋率和蛋重提高 ,料蛋比下降 ;血清总胆固醇 (P <0 0 5)和蛋黄胆固醇浓度降低 ;T淋巴细胞转化率和血液中三碘甲腺原氨酸 (T3)水平显著提高 (P <0 0 5)。试验结果表明 ,寡果糖对蛋用鹌鹑产蛋性能有一定促进作用 ,显著影响脂肪代谢 ,提高细胞免疫功能 ,同时使血液中甲状腺激素水平发生显著变化。     

世界柚子生产及贸易的发展趋势分析

根据FAO公布的数据,综合简介世界柚子主产国20年来柚子种植面积、产量及贸易发展的趋势。     

Evaluation of fluorescein dye as an indicator of small intestinal viability in the horse

In 6 horses, 2 types of ischemic lesions were created in small intestinal segments by selective ligation of vessels and intestinal wall for 1, 2, or 3 hours. After confirming the ischemia by IV injection of sodium fluorescein, the ligatures were released. Five minutes later, the fluorescent patterns were documented photographically. Observed patterns ranged from normal (identical to that observed in unaffected bowel) to a patchy distribution of non-fluorescence (indicating incomplete perfusion). None of the experimental segments was normal when reevaluated 1 month later. The typical appearance included fibrosis, adhesions, and thickening of the bowel wall. It was concluded that IV injection of fluorescein can be used to indicate perfusion of the intestine, but that this is not the only criterion for determining clinical outcome in cases of intestinal ischemia in horses.     

Standing musculoskeletal surgery.

Indications for performing orthopedic surgery on the standing horse include inability to tolerate general anesthesia, risk of worsening an injury during recovery from anesthesia, and cost. The surgeon should be aware that performing surgery in the standing horse can be more demanding and require more experience than the same procedures when the time and convenience of general anesthesia are available. Improved sedatives and analgesics have allowed more latitude because the horses now are more tolerant than when older agents were used. Common sense should be applied to each situation before the decision is made to do a procedure, because every horse and problem is unique.     

污染食物喂养实验中铜对白符跳毒性的连续监测

土壤弹尾目昆虫是土壤环境的重要指示生物,在污染环境的生态评估研究中日益受到重视。本文的污染食物喂养实验的连续观测结果显示,F.candida成虫无死亡,生长率和繁殖率随着酵母食物中Cu浓度的增加而显著减小(21天生长率:R2=0.930 2,F1,7=25.2,p<0.01;繁殖率:R2=0.945 9,F1,7=17.2,p<0.01),暗示F.candida生长率和繁殖率是相对死亡率更敏感的指示重金属污染环境的指标参数。在较高Cu暴露浓度下,随着暴露时间的延长,F.candida的生长率相对对照降低更加明显(p<0.01),说明暴露时间和暴露浓度一样对F.candida的生长有明显的负作用。F.candida产卵时间相对对照发生了延迟现象(F1,7=3.69,p<0.05)。F.candida体内Cu的积累与食物中Cu浓度呈明显的剂量-效应关系,并且在高的Cu暴露浓度下,F.candida体内Cu的积累可以达到较高的程度,说明F.candida可能对Cu具有较高的耐受性,这些可能是培养皿食物暴露实验中导致F.candida成虫的生长率和繁殖率明显降低以及F.candida产卵时间发生延迟现象的内在原因。     

祁连县牛心山流石坡地区植物构成及生态特点调查

为适应高山流石带极端恶劣的环境,高寒植物在形态和生理上发展进化出不同的适应机制.本文对青藏高原祁连县牛心山高寒草甸以上流石坡这一特殊地域的植物构成及生态特点进行了初步调查研究.此外流石带处于生态脆弱区,人为干扰及变化的气候会对植被造成危害.本文旨在提供该特殊生境植物多样性的基本信息,为流石带植物的保护提供资料.[1]     

美国林业管理及林业资源保护政策演进分析和启示

美国是世界上林业发达国家之一,林业发展的经验值得借鉴。基于文献资料,首先较为系统地分析了美国林业管理体系,进而分析了林业资源保护政策的演进,最后提出几点结论和启示。结果表明,美国高效精干的服务型林业管理体系和依法护林、治林和管林的林业经营传统值得借鉴。