育苗调制剂防治水稻立枯病机理的研究

用调制剂处理育苗床土,在生长箱内将Fusarium eqmsett,F.oxysporum,F.grammearum和Rhtzoctonia solani接种在三叶期的水稻秧苗上,研究表明施用调制剂的秧苗素质与抗病力均比对照提高,秧苗体内防御酶系及可溶性蛋白含量的动态同时表明:超氧化物歧化酶(SOD)、苯丙氨酸解氨酶(PAL)、多酚氧化酶(PPO)、过氧化物酶(POD)的活性与可溶性蛋白质含量高峰均比对照提前,且峰值高,并且随着施用量的增加,这一趋势更加明显.     

几种代表性牧草对水牛泌乳高峰期生产性能的影响

将36头泌乳期、产奶量相近的水牛均分3组,探讨禾本科黑麦草、豆科紫花苜蓿、蓼科鲁梅克斯K-1三种牧草对泌乳高峰期生产性能的影响,结果发现,饲喂鲁梅克斯K-1分别比紫花苜蓿和黑麦草提高15.93%、13.14%的产奶量(P<0.05),以及6.09%、6.63%的乳脂率(P<0.01);而紫花苜蓿与黑麦草间差异均不显著(P>0.05)。故种植鲁梅克斯K-1适合我国农村散养水牛的小区放牧或舍饲补饲。     

Effects of Thiopental, Ketamine, Diazepam, Xylazine, and Nitrous Oxide on EEG Spike Activity and Convulsive Behavior During Enflurane Anesthesia in Atropinized Cats Effect of Increasing Inhalant Concentrations

The effects of thiopental, ketamine, diazepam, xylazine, and nitrous oxide, and the combinations of thiopental-nitrous oxide and ketamine-nitrous oxide, on both enflurane-induced electroencephalographic (EEG) spike activity and convulsive behavior were measured quantitatively in atropinized cats receiving enflurane with controlled ventilation. Pretreatments with thiopental, ketamine, and diazepam reduced both EEG spike frequency and amplitude at 2.5% to 4.5% inspired enflurane but did not abolish spike activity. Nitrous oxide (66% of inspired gas) did not significantly alter spike frequency or amplitude during 2.5% to 4.5% inspired enflurane, but the combination of thiopental-nitrous oxide or ketamine-nitrous oxide reduced EEG spike activity during 2.5% inspired enflurane. Enflurane-induced convulsive score was markedly suppressed by thiopental and ketamine and was significantly reduced by diazepam, xylazine and nitrous oxide. The combinations of thiopental-nitrous oxide and ketamine-nitrous oxide greatly reduced behavioral-convulsive responses induced by 2.5% to 4.5% inspired enflurane.     

Hepatic Lobe Torsion as a Cause of Colic in a Horse

A 14-year-old Arabian gelding was examined for colic. An exploratory celiotomy was subsequently performed and the left lobe of the liver was found to be twisted. The lobe was resected using a TA-90 surgical stapling instrument. Histologic examination of the resected liver indicated portal vein and sinusoid dilation and congestion with blood. There were focal areas of necrosis and bacterial cocci and rods throughout the section. The histologic findings were consistent with hepatic lobe torsion. After surgery, the horse was treated with broad spectrum antibiotics, anti-inflammatory drugs, heparin, and intravenous fluids. The horse recovered without complications, although serum liver enzymes remained elevated for more than 1 week after surgery. Seven months after surgery the horse showed no adverse affects from the disease.     

Application of Airway Pressure Therapy in Veterinary Critical Care: Part I: Respiratory Mechanics and Hypoxemia

Over the past several decades, recognition of acute respiratory failure as the cause of death in patients suffering from various clinical conditions has prompted aggressiv investigation into the area of respiratory physiology and supportive respiratory care. With the evolution of emergency medicine and critical care services in both human and veterinary medicine, many patients previously considered unsalvageable due to the severity of their underlying disease are now being resuscitated and successfully supported, creating a new population of critically ill patients. Where only a decade ago these patients would have succumbed to their underlying disease, they now survive long enough to manifest the complications of shock and tissue injury in the form of acute respiratory failure. Investigation into the pathophysiology and treatment of this acute respiratory distress syndrom (ARDS) has facilitated increased clinical application of respiratory theerapy and machanical ventilation.¹ The purpose of this paper is to provide a basic review of respiratory mechanics and the pathophysiology of hypoxemia as they relate to airway pressure therapy in veterinary patients and to review the use of airway pressure therapy in veterinary patients This paper is divided into two parts; part I reviews respiratory mechanics and hypoxemia as they apply to respiratory therapy, while part II deals specifically with airway pressure therapy andits use in clinical cases.     

Application of Airway Pressure Therapy in Veterinary Critical Care: Part II: Airway Pressure Therapy

As the specialties of emergency medicine and critical care have grown and evolved in both human and veterinary medicine, so has the need for more advanced care of patients with primary lung disease. Treatment of acute respiratory failure has been the focus of several articles in the human medical literature of the past few years.^1,8 This paper deals with airway pressure therapy and its application in cases of acute respiratory failure in veterinary medicine. The reader is referred to part I of this paper for a reveiw of respiratory mechanics and hypoxemia as they apply to respiratory therapy.     

甲状腺球蛋白免疫组化对甲状腺肿瘤的诊断价值

用免疫组化A B C法对60例甲状腺病理标本进行了甲状腺球蛋白检查,结果表明源于甲状腺滤泡上皮细胞的肿瘤,均呈阳性或弱阳性反应。大部分甲状腺癌呈弱阳性反应。作者认为甲状腺球蛋白可作为鉴别甲状腺滤泡上皮细胞源性与非滤泡上皮细胞源性的良好标记。     

Pasteurella haemolytica A1 and Bovine Respiratory Disease: Pathogenesis

The severe fibrinonecrotic pneumonia associated with pneumonic pasteurellosis usually results from colonization of the lower respiratory tract by Pasteurella haemolytica biotype A, serotype 1(A1). Despite recent research efforts, the authors lack a detailed understanding of the interactions and host response to P. haemolytica in the respiratory tract. The authors hypothesize that management and environmental stress factors or viral infection alters the upper respiratory tract (URT) epithelium allowing P. haemolytica to colonize the epithelium. Once the URT is colonized, large numbers of organisms enter the lung where they interact with alveolar macrophages. Endotoxin, released from the bacteria, crosses the alveolar wall where it activates pulmonary intravascular macrophages, endothelium, neutrophils, lymphocytes, platelets, complement, and Hageman factor leading to complex interactions of cells and mediators. It is the progression of this inflammatory response with neutrophil influx that is ultimately responsible for the pulmonary injury. Leukotoxin is a major virulence factor of P. haemolytica that allows it to survive by destroying phagocytic cells. At subcytolytic concentrations it may also enhance the inflammatory response by activating cells to produce mediators and release reactive oxygen metabolites and proteases.     

明确目标 加快发展全面推进江苏水利现代化进程 明确目标 加快发展全面推进江苏水利现代化进程 明确目标 加快发展全面推进江苏水利现代化进程

全面推进现代化建设，是21世纪的三大任务之一。水利作为首位国民经济基础设施，在经济和社会的发展过程中有着不可替代的战略地位。全面加快现代化建设，水利现代化必须先行，并适当超前。 1　全面推进水利现代化建设是我省经济社会和水利事业发展的客观要求 　　江苏滨江临海，地处江淮沂沭泗的下游，河湖众多，地势低洼，全省10多万km2的面积承泄上中游200多万km2的来水，汛期80%的地面处于洪水威胁之下，素有“洪水走廊”之称。江苏又处于南北气候过渡地带，降水时空分布不均，水资源也相对紧缺，淮北地区、沿海垦区、丘陵山区水资源不足的矛盾尤为突出，苏南面临着水质型缺水的问题。特殊的地理位置和气候条件决定了江苏是一个水旱灾害频发的省份。据统计，1949年后的50年中，江苏受灾面积在66.7万hm2以上的水旱灾害共44年，其中洪涝15年、干旱10年、水旱交错19年，正常年景仅6年。因此，水利在江苏经济社会发展中始终处于十分重要的位置。江苏近50年经济与社会发展的历史证明，“经济要发展，水利必先行。”刚刚结束的江苏省委九届十二次全会明确提出：“十五”期间要以富民强省、争取率先基本实现现代化来总揽全局。在这种形势下，加快水利现代化建设进程，既是全省现代化建设的要求，也是水利自身发展的要求。 1.1　全面推进水利现代化是江苏社会和经济发展的必然需求 　　江苏经济较为发达，　1999年GDP达到7 700亿元，　居全国第二位，　占全国总量的9.4%；　人均GDP达10 669元，　已接近中等收入国家下限水平。　《中共江苏省委关于制订江苏省国民经济和社会发展第十个五年计划的建议》提出：　“十五”　是江苏全面建设宽裕的小康社会，　为率先基本实现现代化奠定坚实基础的关键时期，　全省GDP年均增长预期调控目标为9%～10%，　人均GDP年均增长8%～9%。　到2010年，　全省GDP在2000年的基础上增长1.4倍左右，　苏南及其他有条件的地方基本实现现代化。　水利作为国民经济重要的基础设施，　必须保持与经济和社会的同步发展，　并适度超前。　随着全省现代化进程的加快，　必然要求加快水利现代化建设步伐，　进一步提高防洪保安能力、　水资源供给水平和水环境保护能力，　为国民经济和社会发展提供更为可靠的水利保障。 1.2　全面推进水利现代化是江苏水利发展到新阶段的客观要求 　　1949年以来，　在历届省委、省政府的领导下，江苏人民 　　　本文为江苏省水利厅黄莉新厅长2000年12月15日在部分省、市农村水利现代化研讨会上的发言，略有删节。     

Long-term Outcome of Tooth Repulsion in Horses A Retrospective Study of 61 Cases

The records of 61 horses undergoing tooth repulsion for treatment of alveolar periostitis were reviewed. Seventeen of 36 horses (47%) in which maxillary teeth were removed had serious postoperative complications, such as infection of a second tooth, bone sequestration, chronic sinusitis, draining tracts, retained dental packing, feed impaction of the alveolus or sinus, suture-line dehiscence, or skin-flap sloughs. Eight horses required at least one additional surgical procedure. Eight of 25 horses (32%) in which mandibular teeth were removed had serious postoperative complications, and four horses required an additional surgical procedure. Hospitalization lasted 2 to 61 days (median, 22 days) for maxillary teeth and 3 to 35 days (median, 8 days) for mandibular teeth. Long-term follow-up (at least 5 months) was possible in 47 horses. Twenty-four of 30 horses (80%) with maxillary tooth repulsion healed without further problems; six horses had persistent nasal discharge. Fourteen of 17 horses (82%) with mandibular tooth repulsion healed with no further problems or with only minor complications; three horses had a chronic draining tract.