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From: dennisg@sdcrdcf.UUCP (Dennis E. Griesser)
Newsgroups: net.kids
Subject: Re: How do you get a boy?
Message-ID: <1880@sdcrdcf.UUCP>
Date: Tue, 2-Apr-85 13:39:39 EST
Article-I.D.: sdcrdcf.1880
Posted: Tue Apr  2 13:39:39 1985
Date-Received: Fri, 5-Apr-85 03:00:29 EST
References: <1660SGL@PSUVM>
Reply-To: dennisg@sdcrdcf.UUCP (Dennis E. Griesser)
Organization: System Development Corp. R+D, Santa Monica
Lines: 38
Summary: 

In article <1660SGL@PSUVM> sgl@psuvm.UUCP writes:
>
>those other important reasons)  Now mind you it's not important enough to
>consider any drastic measures like biogenetics or hormone pills, just given
>a choice we both would like to buy blue baby clothes first.
>
>My question is what methods have any of you more experienced baby makers tried
>to determine the gender of the child and how successful did they appear (ie:
>
>I realize, of course, that there is no scientific merit in any of these methods
>

The net has already responded with the standard set of techniques. They are
fairly easy to do, but come with no warranty.

For prospective parents who want better odds, you could try artificial
insemination (using the husband's semen).  With no other preperation, this
process results in "a marked preponderance of males."  If the semen is allowed 
to sit for awhile, the heavier X sperm settle.  The lower third if the sample
"contains 80% X sperm."  If you REALLY want to slant the odds, you could use
a centrifuge....

All of these methods are based of reported differences between X and Y sperm.
Note that OTHER researchers claim that there are NO differences between X and
Y sperm in "size or mass, shape, or electric charge".

As to sex ratios:
                               male         female
       sperm production         100            100
             conception         160            100
           implantation         120            100
                  birth         105            100

All of this information appears in "Human Sexuality", fourth edition, by James
McCary and Stephen McCary.  Published by Wadsworth, copyright 1982.


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