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Bull vs heifer weight

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jwimberly

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I've got a few yearling heifers that I'll need to get bred in the next couple months. I know they're too small right now for my herd bull at 1750 pounds. In the reading I've done I've seen recommendations from 50% to 80% of his weight. Well that's a pretty wide range at 875 to 1400 pounds. What do you guys usually shoot for? His birth weights on my commercial cows have been 60-90 pound range.
 

kenny thomas

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What is your concern? If they are old enough and as big as you desire them to be then I wouldn't be concerned about the bull weight.
In nature the biggest, strongest male gets the female.
 

Coosh71

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I'd say go for it if you feel your heifers are old/big enough. I've never heard of a bull formula either. What type of cattle are they? Good luck.
 

BC

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I always heard you need to let heifers get to 65 to 70% of their mature weight before you breed.
 
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jwimberly

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Coosh71":pmfz4sbj said:
I'd say go for it if you feel your heifers are old/big enough. I've never heard of a bull formula either. What type of cattle are they? Good luck.

They are just black commercial heifers. My main concern is the Hereford bull's weight on an 850 # heifer. His calves are pretty consistent at 60-90 pounds so not too worried with calve size just physical size. He won't break down a young heifer at over double their weight?
 

Supa Dexta

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Once heifers are of desired age/size put them with the bull. Thats it, thats all.

I have had 4-5 month old calves get bred by herd bulls.

If you're 250 would you have a problem laying it to a 125lb woman?
 

Nesikep

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It really depends on the bull, some bulls put a lot of their weight on a cow, others don't.. My heifers were somewhere in the 8-900 lb range and the bull is 2400.. no problem at all with him.
 

Redgully

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Ive found if there is a few to breed the bull wont spend a lot of time with each heifer, is on and off quick and gets the job done. Sometimes cows can be more of a problem chasing and mounting a heifer she has taken a shine to until the heifer can barely stand.
 

Nesikep

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I have one heifer that just always stands.. bull doesn't pay any attention to her but the other cows take advantage of it
 

Coosh71

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jwimberly":1d4ji3t2 said:
Coosh71":1d4ji3t2 said:
I'd say go for it if you feel your heifers are old/big enough. I've never heard of a bull formula either. What type of cattle are they? Good luck.

They are just black commercial heifers. My main concern is the Hereford bull's weight on an 850 # heifer. His calves are pretty consistent at 60-90 pounds so not too worried with calve size just physical size. He won't break down a young heifer at over double their weight?

Like others have said. I wouldn't worry about that. If we all had to factor in herd sure weightvs heifer/cow weight we would all have 1200# herd sires and would ALL be broke as a joke lol. Don't over think it. Yes there is a chance when breeding heifers, that they may pull a muscle or tweak a hip. But, that's also just a "good" Saturday night...Put the bull on when you are ready for however long you choose and see how it goes.
 

holm25

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We had 2300lbs bull breed some heifers last summer on accident and it was just fine.
 

WinterSpringsFarm

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We had a bull that would lift both rear feet off the ground when he "hunched" them. Used him to breed a heifer once and he rode her straight to the ground a few times before I separated them. Cows handled him fine.

I'd say it all depends on the bulls technique.
 

Jeanne - Simme Valley

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Many people worry about using a "mature" bull on a heifer. I think mature cows do more potential damage to a standing heifer than any bull. A cow will mount and stay on forever. A bull gets up, does his job & gets off.
The only reason to be concerned with size of heifer is projected calving size - big enough.
Yes, some bulls are harder than others. But, he is also harder on cows. Might not want to keep a bull around like that.
 

littletom

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Supa Dexta":p7rad0hk said:
Once heifers are of desired age/size put them with the bull. Thats it, thats all.

I have had 4-5 month old calves get bred by herd bulls.

If you're 250 would you have a problem laying it to a 125lb woman?

Copenhagan on the screen
 

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