独立通气笼盒过氧乙酸灭菌效果初探

在不同时间内,用不同浓度过氧乙酸对IVC笼盒进行灭菌。发现0.5％过氧乙酸消毒12h灭茵效果较为理想。并比较测得BALB/c-nu小鼠饲育在二种不同方法消毒的笼盒中(O.5％过氧乙酸和131 C,5 min高压灭菌)的产仔率、初生重、离乳重、成年体重等指标差异不显著(这P>0.05)。因此,用0.5％的过氧乙酸对IVC笼盒消毒、灭茵具有可行性。

Observation of Cell Surface Characteristics of the Breast Carcinoma in Microtus fortis and Kumming Mouse by the Scanning Electron Microscopy

Objective To observe the different cell surface characteristics of the breast carcinoma in closed breeding Microtus fortis and Kumming mouse.Method Tissues were observed under the scanning electron microscope. Results There were a number of folds and very small irregular popular processes on the surface of normal mammary gland cells of Microtus fortis ;while the surface of breast carcinoma cell in Microtus fortis was densely covered with a large number of long and irregular microvilli. In Kunming mouse, the cell surface of its breast carcinoma was also covered with microvilli, whose morphologic characteristics were very distinct and the end of them was round in shape. Conclusion There are distinguishing characteristics of microvilli on the surface of the breast carcinoma cells between Microfus fortis and Kunming mouse.