Scientific basis of Female to Male ratios

This was posted by a SIF member, which is self-explanatory

scientific basis of sex ratios
Posted by: "sudeep kumar" lhmc2000@yahoo.com lhmc2000
Thu Jan 4, 2007 5:46 am (PST)
I want to impart some information to the other persons on this group on the sex ratio.There is natural birth rate of the male and female infants in each species of mammals.In all the mammals there is pre ponderence of the male births over the female. In human beings the ratio of male to female at the time of conception is 115:100. in reverse 890 females to 1000 males. At the time of birth it is 940 females to 1000 males. Whenever calcuating the man made deficit this natural ratio should be kept in mind. An area having 927 girls to 1000 boys should be calculated as having deficit of 13 girls per 1000 boys and not horrific 73 as it appears to a common man. Interestingly states having 970 girls per 1000 boys should be calculated to have deficit of 30 boys per 1000 boys. Alas this reasoning is inimical to the feminists and to score emotional points they simply calculate the deficit of girls from 1000 which of course nearly whole of the country will have. Then they raise the cry
over 5 crore missing girls wih is entirey misleading. There is a scientific data in a medical journal over sex ratio at the birth.
http://www.bmj. com/cgi/content/ full/324/ 7344/1010
Just glance over what it says about the natural male female ratios at birth. Click on the table and you will see that every country has excess of boys to girls and still the article talks of the deficit of boys. If anyone interested, I am willing to impart more information on this.
The truth is that women organisations are liars.
Dr Sudeep
Ghaziabad.