鸡结膜结合淋巴组织（CALT）对新城疫疫苗点眼免疫应答

１８０只１日龄公雏平均分成Ａ、Ｂ、Ｃ三组。Ａ组于１日龄手术切除下眼睑结膜。Ａ、Ｂ两组于１０日龄和２０日龄用鸡新城疫Ⅱ系（ＮＤⅡ）弱毒疫苗点眼首免和二免，Ｃ组为对照组。定期收集泪液、血清、ＣＡＬＴ和哈德氏腺，比较观察其抗体ＨＩ效价消长规律与免疫组织细胞变化特点。结果，Ｃ组非免鸡泪液ＨＩ效价比血清ＨＩ效价稍低，１０至３４日龄均呈直线下降，３４至４８日龄维持在极低的水平上（１．２￣２Ｌｏｇ２）。Ｂ组点眼     

MAGNETIC RESONANCE IMAGING OF THE NORMAL EYE AND ORBIT OF A SCREECH OWL (OTUS ASIO)

Magnetic resonance images of a screech owl ( Otus asio ) were acquired to identify the normal anatomic components of the eye'and orbit. T1-weighted, proton-density, and T2-weighted images were obtained in the straight sagittal, oblique dorsal, and oblique sagittal planes. Signal intensity for the various orbital structures differed between the three resonance techniques. T1-weighted images provided the best anatomic detail of ocular and orbital structures. The oblique dorsal and oblique sagittal planes were superior for evaluating the optic nerve in its entirety.     

微生物除草剂的研究现状及应用前景

本文概述了利用微生物及其代谢产物防治杂草的潜在优势和研究进展，介绍已商品化和具有开发潜力的微生物除草剂及具有除草活性的微生物天然植物毒素。     

畜禽粪便微生物处理及资源化工程的研究

在讨论了畜禽粪便污染严重性的基础上，应用微生物技术进行畜禽粪便处理与资源化工程研究，探讨解决畜禽粪便的综合治理新途径。     

"3S"技术在三江源区生态环境动态监测的应用探讨

“3S”技术已广泛应用于生态环境监测的各个领域。针对利用“3S”技术在三江源区进行生态环境动态监测的意义、特点及可行性进行了探讨,并根据三江源区生态环境存在的主要问题,制定了动态监测主要内容。     

关于重构能源立法体系的思考

我国能源立法体系存在基本法缺失，单行法不完善，配套法规缺位等缺陷。重构能源立法体系应以可持续发展为立法宗旨，引入环境影响评价制度，建立绿色标识制度，强化企业的社会生态责任，从而增强与环境法、自然资源法等相关法律的衔接；建立能源领域的宏观调控制度，鼓励开发清洁的新型能源，提高能源利用效率；促进市场化改革，力求实现经济性、供应保障性和环境保护性这一“稳固三角”目标。     

EFFECT OF DISRUPTION OF THE SEBACEOUS LAYER OF THE SHEEP''S SKIN ON THE INCIDENCE OF FLEECE-ROT

It was postulated that integrity of the sebaceous layer on the skin is important in maintaining resistance to fleece-rot. This hypothesis was tested in an experimenta of a 2 x 2 factorial design in which sebaceous layer disruption and wetting were the 2 treatments. The sebaceous layer was disrupted by applying a light petroleum solvent to the skin of the sheep. Fleece-rot occurred in all sheep (20) that were both wetted and had the sebaceous layer disrupted while 9/19 of those wetted but without the sebaceous layer disrupted developed fleece-rot. The fleece-rot lesions observed were more severe in sheep in the disrupted wetted treatments than in the intact wetted treatment. Interpretation of these differences was complicated by a possible reaction of the skin to the solvent used. The differences were not due to an effect of treatment on fleece wettability. No fleece-rot developed in the sheep not wetted and application of the solvent alone did not induce fleece-rot.     

不同药物对杂交奶牛痒螨病的疗效观察

目的为查明治疗杂交奶牛痒螨病的最佳药物。方法采用6种不同药物对杂交奶牛痒螨病予以治疗,分别在用药后的d 20、40、60、80观察其疗效。结果不同的药物对杂交奶牛的痒螨病均有一定的疗效,但随着时间的推移,痒螨病的复发率较高,80 d后观察,试Ⅰ组(克虫星组)疗效最好,痊愈率达60%,试Ⅵ组(农用柴油组)疗效最低,痊愈率只有20%。     

镉中毒解毒机理的研究：硒化合物的预防和治疗作用初探

对大鼠组织胞液(Cytosol)的体外试验结果表明:亚硒酸钠、硒酸钠及硒化钠以明显影响[~(109)Cd]标记的氯化镉在组织胞液中的分布。硒酸钠、亚硒酸钠有较强的封闭金属硫蛋白(MT)与镉结合部位、激活分子量较大的蛋白质,捕获胞液中[~(109)Cd]的作用,还可使已经和MT结合的[~(109)Cd]被剥离,随后,[~(109)Cd]转入分子量较大的蛋白质上;亚硒酸钠还可使[~(109)Cd]转入分子量为32000～35000的蛋白质上。硒化钠仅有较弱的剥离与MT结合的镉,使之转入分子量较大的蛋白质上,但几乎不能阻止镉与MT结合。镉与大、中分子量蛋白质结合力远较它与MT的结合力弱,因而以能有利于镉被排出体外。     

农业高校在社会主义新农村建设中的作用机制探析

建设社会主义新农村是党的十六届五全会提出的重大历史任务，是落实科学发展观、深化农村改革、推进“三农”工作的重大举措。农业高校与“三农”有着重要的历史渊源，作为农业科技创新和成果推广的重要源头，农业高校应进一步拓宽对社会主义新农村建设的作用机制，充分发挥其在新农村建设中的战略作用。     

乳化剂对蜂胶抑菌作用的影响

使用几种常用乳化剂对蜂胶乳化后的抑菌作用进行试验，发现乳化后的蜂胶抑菌作用降低近100倍。