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if a commercial cow-calf operation has 200 cows exposed to breeding annually, averages 90% palpated pregnant at calf weaning time, and culls all open cows from the herd at this point, what is the number of weaned heifers that need to be kept for replacements?

Sagot :

According to the graph, the typical herd will, "on average," add 17% new first-calf heifers every year.

In other words, 17 of the 100 cows that are exposed to bulls or AI each year will be having their first offspring. This provides us with a starting point for determining how many heifers we should conserve annually.

The percentage of heifers that will get pregnant during a breeding season must then be predicted.

The heifers' nutritional growth program between weaning and breeding is the main basis for the prediction. About half of the heifers will cycle early if they are grown slowly and are between 50% and 55% of their mature weight when they begin breeding.

Learn more about first-calf heifers is visit here;

https://brainly.com/question/29374204

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