Posted by TMo on March 22, 2011 at 10:24:50 from (98.175.175.148):
In Reply to: HEIFER CALVES? posted by j heikemper on March 21, 2011 at 15:44:34:
Normally, 50% of a bull's sperm are an X chromosome and the other 50% are the Y chromosome. The heifer or cow produces eggs with X chromosomes. So the Bull is the deciding factor of wether the offspring is male or female. So I guess you could say it is a 50-50 chance of either maile or female. It is interesting that a study shows that frozen semen yields more bulls. I don't know why. Sexed liquid and sexed frozen semen yields a heifer rate of 94-100%.
This is not any particular answer to other posts but just some comments.
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