Weaning wts.

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Anonymous

I'm looking to buy a new bull for the first time. I keep seeing the weaning weight on the EPD's and there seems to be a big gap in the weights. Some are in the 500's others are in the 800's. Is there a set time period? I've seen on some breeders list a 205 day and a 225 day wt. Is this their weaning weight? By the way the bulls are charolais if that makes a difference.

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OP
A

Anonymous

205 days is the traditional weaning age, weaning weights are adjusted to that time. The bulls actual weaning weight is not always a good measure of his capabilities when it comes to siring WW or YW. That said: if a bull is creep fed as a calf his own WW will be higher then one that was just on pasture and momma. The EPD WW/YW if it has achieved any accuracy at all is based on multiple herds and gives you a better feel of his capabilities as a sire. I would think that a charolais bull without creep should wean in the mid 700 to low/mid 800's. We like to think that a cows will wean half her body weight at 205 days. Heifers calves will be lighter ET calves will be heavier at birth but should balance out by 205 days. A lot of that too depends on the dam, if she is a sorry milker the calf won't wean as heavy but may be a real bruiser by yearling time.

dunmovin farms

> I'm looking to buy a new bull for
> the first time. I keep seeing the
> weaning weight on the EPD's and
> there seems to be a big gap in the
> weights. Some are in the 500's
> others are in the 800's. Is there
> a set time period? I've seen on
> some breeders list a 205 day and a
> 225 day wt. Is this their weaning
> weight? By the way the bulls are
> charolais if that makes a
> difference.
 
OP
A

Anonymous

Since actual weaning age can vary from ranch to ranch, most breed associations require that a calf be weighed within a "window" of 205 days. They then adjust that weight to a 205 day adjusted weaning weight. I know of one Angus breeder who doesn't actually wean calves until they're about 9 months old; but he weighs them within the 205 day window. Several university studies have shown EPDs are much more reliable (8 or 9 times more reliable) in predicting what sort of calves a bull will sire than his own weaning and yearling weights. His own weights can be influenced either way with a creep feeder or lack of grass. Good luck...

I'm looking to buy a new bull for
> the first time. I keep seeing the
> weaning weight on the EPD's and
> there seems to be a big gap in the
> weights. Some are in the 500's
> others are in the 800's. Is there
> a set time period? I've seen on
> some breeders list a 205 day and a
> 225 day wt. Is this their weaning
> weight? By the way the bulls are
> charolais if that makes a
> difference.
 
OP
A

Anonymous

i have found weaning weight to be very innacurate, dont rely on any averages unless the percentage of accuracy is over 80%
 

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