Method and means for controlling the sex of mammalian offspring

Chemistry: molecular biology and microbiology – Maintaining blood or sperm in a physiologically active state...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A01N 102

Patent

active

043271774

ABSTRACT:
A method of controlling the sex of mammalian offspring by separating spermatozoa into fractions having the desired sex characteristics and artificially inseminating the female to produce offspring of the desired sex. The sperm is separated by applying a buoyant force or forces to a mixture of sperm in nutrient media so that separation occurs according to density of the sperm. The nutrient media is controlled as to density characteristics and can have a uniform density gradient from top to bottom so that buoyant forces within such media are selectively applied to sperm of different density to effect separation of the sperm and to hold sperm fractions of different density in suspended relation within the nutrient media. Substantially pure sperm fractions (having the desired male or female sex characteristics) are isolated at the top or at the bottom of a separation column for use in artificially inseminating the female. Under certain circumstances, separation of the sperm into fractions is enhanced by the application of gas pressure (positive or negative) above the mixture of sperm and nutrient media in the column.

REFERENCES:
patent: 3185623 (1965-05-01), Smith et al.
J. Reprod. Fert. (1966) 11, 469-472, Schilling.
Bhattacharya, Reprint from "Zeitschrift fur Wissenschaftliche Zoologie", Akademishe Verlagsgesellschaft Geest & Portig, K. G., Leipzig.
Chemical Abstracts, vol. 68, 1963, 66311n.
The Australasian Journal of Pharmacy, Science Supplement, No. 77, Jul. 1969, pp. 549 & 550.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and means for controlling the sex of mammalian offspring does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and means for controlling the sex of mammalian offspring , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and means for controlling the sex of mammalian offspring will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2198472

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.