Chemistry: molecular biology and microbiology – Maintaining blood or sperm in a physiologically active state...
Reexamination Certificate
2006-07-04
2006-07-04
Saucier, Sandra E. (Department: 1651)
Chemistry: molecular biology and microbiology
Maintaining blood or sperm in a physiologically active state...
Reexamination Certificate
active
07070917
ABSTRACT:
A method for the simultaneous determination of the total concentration of sperm cells and the proportion of live sperm cells in a semen sample is provided. By selective staining of live, dead and/or dying sperm cells, for example using one or more fluorochromes, the detection means can distinguish between live, dead and/or dying sperm cells, for example by detection of the fluorescent response from the sperm cells. The selective staining may be performed at room temperature and in concentrations below standard concentrations. The determination may be performed by selective counting of cells of each fluorescent quality for example by using a flow cytometer having internal concentration standard means. Furthermore, the likelihood of fertilizing a female animal with an insemination dose, taken from a semen sample having a known total concentration of sperm cells and a known proportion of live sperm cells, is predicted on the basis of the thus determined total concentration of sperm cells and the proportion of live sperm cells.
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Christensen Preben
Stenvang Jens Peter
Hunton & Williams
Saucier Sandra E.
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