In recent vears, as the inerease of the artificial forest, the damages by the forest rats are beeoming more and more serious, which have ereated a lot damage to forest. This report is the results of our experiments us...In recent vears, as the inerease of the artificial forest, the damages by the forest rats are beeoming more and more serious, which have ereated a lot damage to forest. This report is the results of our experiments using coumateralyl to control forest rats. The experiments that we earry out here include the measurement of the toxicity of this rodenticides to those rats, the indoor and outdoor tests of the efficiency of those rodenticides, the second time poisoning experiment and the investigation of the safety of that compound. The results shown that baits with coumatetralyl as main rodentieides is verv effieient safe and ceonomic in the control of those forest rats This rodenticides and phosazetim can be used altemately in the control of those forest rats to prevent the resistance of the rats and to promote the control effect.展开更多
Objective: To investigate the effect of indomethacin-Cu-IUD on the endometrium. Methods: Four kinds of IUDs were inserted into the uteri of rats and rabbits through laparotomy. The animals were killed at 1,3,6 months ...Objective: To investigate the effect of indomethacin-Cu-IUD on the endometrium. Methods: Four kinds of IUDs were inserted into the uteri of rats and rabbits through laparotomy. The animals were killed at 1,3,6 months after treatment and their uteri were taken for histological examination with either microscopy and transmission electron microscopy. The rats and rabbits without IUD served as control. Results: There was no obvious pathological change in indomethacin-Cu-IUD group at 1-6 months after insertion of IUD, similar to the control. There were some mild edema and hyperplasia of fibrous tissues in endometrium in Cu-IUD group. There was a significantly change in the vessels of microcirculation. Most vessels were normal or contracted in the indomethacin--Cu--IUD group (75 % ) and control group(87% ), while most vessels were dilated in the Cu-IUD group(70% ) (P<0. 01 ). Conclusion: Indomethacin--Cu-IUD has no harmful effect on endometrium.展开更多
文摘In recent vears, as the inerease of the artificial forest, the damages by the forest rats are beeoming more and more serious, which have ereated a lot damage to forest. This report is the results of our experiments using coumateralyl to control forest rats. The experiments that we earry out here include the measurement of the toxicity of this rodenticides to those rats, the indoor and outdoor tests of the efficiency of those rodenticides, the second time poisoning experiment and the investigation of the safety of that compound. The results shown that baits with coumatetralyl as main rodentieides is verv effieient safe and ceonomic in the control of those forest rats This rodenticides and phosazetim can be used altemately in the control of those forest rats to prevent the resistance of the rats and to promote the control effect.
文摘Objective: To investigate the effect of indomethacin-Cu-IUD on the endometrium. Methods: Four kinds of IUDs were inserted into the uteri of rats and rabbits through laparotomy. The animals were killed at 1,3,6 months after treatment and their uteri were taken for histological examination with either microscopy and transmission electron microscopy. The rats and rabbits without IUD served as control. Results: There was no obvious pathological change in indomethacin-Cu-IUD group at 1-6 months after insertion of IUD, similar to the control. There were some mild edema and hyperplasia of fibrous tissues in endometrium in Cu-IUD group. There was a significantly change in the vessels of microcirculation. Most vessels were normal or contracted in the indomethacin--Cu--IUD group (75 % ) and control group(87% ), while most vessels were dilated in the Cu-IUD group(70% ) (P<0. 01 ). Conclusion: Indomethacin--Cu-IUD has no harmful effect on endometrium.