牛瓣胃阻塞误诊一例

1病例2006年5月23日,大通县斜沟乡上窑村村民马某饲养的1岁龄黑杂奶牛1头来站就诊。主诉该牛于当日早晨7∶00时,饲喂当时采割的青草后,于9∶00时左右出现兴奋不安、来去走动、流涎、肚胀、腹痛,频频排尿、肌肉振颤等现象,遂前来就诊。2误诊经临床检查,病牛T38℃,R24/min,P50/mi     

Study on Cell Suspension Culture of Floribunda Rose

Friable callus was induced when immature seeds of floribunda rose were inoculated on MS medium supplemented with 2,4-D 3.0 mg.L^-1. When transfered onto subculture media, friable callus developed into embryogenic callus, which was used to establish cell suspension lines. Cell suspensions had to be subcultured at a interval of 4-5 days at the first several culture cycles. The best subculturing cycle for the stable cell suspensions was 8-10 days. The best inoculum quantity was 1 mL PCV（Packed Cell Volume） per 40 mL culture fluid.     

Exploitation of Wild Flowers and the Sustainable Development of Flowers Industry in China

This article introduced the new methods on the research of the wild flowers and plants idioplasmic resources, elaborated the introduction and domestication and exploitation of wild flowers and plants idioplasmatic resources and the sustainable development of flowers and plants industry in China, and put forward some proposals on the existing question and the prospects for the development.