The physical meaning of critical surface tension (γc ) is in troduced and three kinds of methods which were applied to determine the critical surface tension of leather are introduced also.
The separate technology of single oocyst were improved, and used to separate and identify Eimeria tenella of Hefei strain. The oocysts of faceal of cecum, from classically symptomic coccidian chicken in Hefei city , were collected by precipitation and flotation method, then cultured with certain 2. 5% potassium dichromate and 27 Cin incubator, and the breeding circumstance was observed at interval time and sizes were measured.
The methods which were usually applied to represent the waterproofness of leather are simply introduced in this paper. The physical meaning of critical surface tension (γc ) is in troduced and three kinds of methods which were applied to determine the critical surface tension of leather are introduced also. The relationship between waterproofness and critical surface tension is discussed,and it is pointed out that critical surface tension can be applied to evaluate the waterproofness of leather.
The separate technology of single oocyst were improved, and used to separate and identify Eimeria tenella of Hefei strain. The oocysts of faceal of cecum, from classically symptomic coccidian chicken in Hefei city , were collected by precipitation and flotation method, then cultured with certain 2. 5% potassium dichromate and 27 Cin incubator, and the breeding circumstance was observed at interval time and sizes were measured. Thus it was juniorly identified as Eimeria tenella with combination of pathologic...