大豆水溶性多糖的黏度性质及其应用研究

研究了不同条件下大豆水溶性多糖溶液的黏度变化情况，同时和其他常用的稳定剂如果胶等也做了比较。试验结果表明。本实验室生产的大豆水溶性多糖的水溶液的黏度随着温度的升高、浓度的降低、外加盐量的增加而降低；随着外加蔗糖量、pH值的增加而增加；相比较于其他稳定剂大豆水溶性多糖的黏度很低，使酸乳饮料具有清爽的口味。     

First Established Pregnancies in Mediterranean Italian Buffaloes (Bubalus bubalis) Following Deposition of Sexed Spermatozoa near the Utero Tubal Junction

At the time of AI following Ovsynch protocol, a total of 51 buffaloes were randomly divided in a first group (n = 30) subjected to conventional AI into the uterine body with 20 million non-sex sorted frozen-thawed spermatozoa, while a second group (n = 21) was inseminated near the utero-tubal junction (UTJ) ipsilateral to the ovary carrying the preovulatory follicle with 2.5 million live (4 million total) sex-sorted frozen-thawed spermatozoa. The semen used for flowcytometric sorting was collected and processed on a farm in Italy, and then shipped to a laboratory in Germany. Eleven buffaloes were inseminated with X-chromosome bearing spermatozoa and 10 with Y-chromosome bearing spermatozoa. Conception rates after conventional and UTJ inseminations were 43.3% (n = 13) and 42.8% (n = 9) respectively (p = 0.97). Eight of the nine foetuses obtained after insemination with sexed spermatozoa corresponded to the sex as predicted by the cell sorting procedure (five male and four female foetuses by ultrasound vs six male and three female foetuses by cell sorting). In conclusion, for the first time buffalo semen has been successfully subjected to procedures for flowcytometric sperm sorting and freezing. Low doses of sexed spermatozoa have been deposited near the UTJ giving conception rates similar to those of conventional AI with full dose.     

窄幅机油乳剂对柑桔树的安全性试验

1998-2000年在浙江黄岩进行了窄幅机油乳剂（敌死虫）对柑桔的安全性试验。每年的4月下旬至10月上旬在温州蜜柑果园中分别用.5%的敌死虫定期喷洒4-10次（盛夏高温季节在16：00后喷洒），结果表明，除在花蕾期使用会增加畸形花率，9月份以后喷洒使果实的日灼病斑稍趋明显之外，对落叶落果、果实的产量和质量等均无不良影响，但一年的累积用量宜控制在4%以下。     

防病促生枯萎病拮抗菌“98-Ⅰ”对4种枯萎病防治效果研究

经 8年系统试验研究从 330个细菌菌株中筛选出 1株防病促生枯萎病拮抗菌“98 Ⅰ” ,经鉴定属蜡质芽孢杆菌。该菌对黄瓜枯萎病、西瓜枯萎病、青椒枯萎病和番茄枯萎病 4种土传病害均有显著防治效果 ,其平皿孢子萌发抑制率分别为 79 2 %、75 1%、72 3%和 95 7% ,且该菌对多种蔬菜有促生和促进种子发芽功效。     

The oxygen uptake and carbon dioxide output of late chick embryos

Measurements of the oxygen uptake and carbon dioxide output during the last 36 hr. of incubation show that the exchange of these two gases increases progressively from the start of pulmonary respiration until hatching. The evidence indicates that prior to the penetration of the shell by the beak of the embryo (” pipping “) there is marked hypoxia and hypercapnia which are relieved when the embryo gains access to atmospheric air. At the time of hatching there is a very rapid release of carbon dioxide from the body surface and the internal surface of the allantoic membranes. There is no evidence to suggest that its release indicates either hypoxia or hypercapnia in the embryo immediately before hatching.     

关于开发建设项目水土保持监督管理体系的思考与建议

把依法行政分解为法律基础和行政体系2个方面,分析了开发建设项目水土保持监督管理体系在法律基础和行政体系2个方面存在的问题。法律基础方面存在的问题:一是相关法律中提到开发建设项目水土保持监督管理的内容较少,各项职责落实不到位;二是法律中没有明确流域机构的水土保持职能。行政体系方面存在的问题有:规范化建设还不够完善,个别地方水保部门对监督管理工作内容不了解,权大于法的情况时有出现。提出了完善开发建设项目水土保持监督管理体系的建议。     

欧拉型藏羊杂交改良山谷型藏羊F_1代生长发育对比分析

为研究甘南地区欧拉羊杂交改良山谷型藏羊效果,对欧拉羊与山谷型藏羊杂交试验组和山谷型藏羊本交对照组所产后代的初生、3月龄、6月龄、12月龄、18月龄的体尺、体重进行了跟踪测定,并对不同年龄段杂交后代与对照组后代进行了对比分析和差异显著性检验。结果表明：杂交F1代初生、3月龄、6月龄、12月龄、18月龄的体尺、体重极显著的高于对照组（P〈0.01）,初生、18月龄管围差异显著,3月龄、6月龄、12月龄管围差异不显著（P〉0.05）。