Posted by JDseller on March 22, 2011 at 21:06:26 from (208.126.196.144):
In Reply to: Re: HEIFER CALVES? posted by Fordfarmer on March 21, 2011 at 19:19:14:
Read several years ago that you need to breed earlier in the heat cycle to get more heifers. The study showed that how most dairies where AIing the cow the next day after a standing heat was throwing twice as many bulls as heifers. So they did a study breeding AI as soon as first heat detected. Got 60-70 percent heifers. Reason stated was that the egg started to harden after ovulation. The male sperm where stronger longer. So older eggs got male sperm younger eggs female.
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Today's Featured Article - Memories of an IH Super A When I was ? up to 10, I worked on my Papaw's farm in Greeneville, TN every summer. As I grew older (7), it was the thrill of my day to ride or drive on the tractor. My Papaw had a 1954 IH Super A that he bought to replace a Cub. My Papaw raised "baccer" (tobacco) and corn with the Super A, but the fondest memory was of the sawmill. He owned a small sawmill for sawing "baccer" sticks. The Super A was the powerplant. When I was old enough (7 or 8), I would get up early and be dressed to
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