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How do you formulate a cattle breeding equation?

by cattlefarmer on August 1, 2009

Guerrero asked:


The idea is this:
If I start with 10 cows and 1 bull and they reproduce with a 50% female and 50% male, every year for 3 years the 10 original cows will produce 10 offspring that will be 50% female and 50% male. On the 3d year the first female will be ready to produce offspring (50F/50M) + the 10 original cows. On the 4 year the 10 original cows plus the first 50% Female and 2year 50 Female will be in production. The 10 original cows can breed for 5 consecutive years so is the rest of the female. Every 5 years one has to subtract breeding females. The idea here is to develop a formula were one can plug in a different % of Female and Male. The males are usually out of the farm in 2 years. Can somebody help?? Thanx.
cowgirl, you are write., It sohould read: How do you formulate a cattle breeding Formula to get different results each time. I do not know how to edit my Question :(

{ 1 comment… read it below or add one }

cowgirl August 2, 2009 at 3:16 pm

I don’t think it’s possible to come up with an equation. One year we may have an almost equal number of males and females born. Another year we may have more females. Every cow doesn’t get pregnant every year due to different factors. We’ve even had cows give birth twice in one year, once in January or so, and again later in early winter.

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