advertisement
Forums

The Forum is sponsored by 
 

AAPL stock: Click Here

You are currently viewing the Tips and Deals forum
Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: DP
Date: October 18, 2019 12:36PM
That's Not Good.

Chad Dechow, a geneticist at Pennsylvania State University who studies dairy cows, is explaining how all of America's cows ended up so similar to each other.

He brings up a website on his computer. "This is the company Select Sires," he says. It's one of just a few companies in the United States that sells semen from bulls for the purpose of artificially inseminating dairy cows.

Dechow chooses the lineup of Holstein bulls. This is the breed that dominates the dairy business. They're the black-and-white animals that give a lot of milk.

Dairy farmers can go to this online catalog and pick a bull, and the company will ship doses of semen to impregnate their cows. "There's one bull — we figure he has well over a quarter-million daughters," Dechow says.

A few years ago, Dechow and some of his colleagues at Penn State made a discovery that shocked a lot of people. All the Holstein bulls that farmers were using could trace their lineage back to one of just two male ancestors. "Everything goes back to two bulls born in the 1950s and 1960s," he says. "Their names were Round Oak Rag Apple Elevation and Pawnee Farm Arlinda Chief."


[www.npr.org]





Disclaimer: This post is checked for correct spelling, punctuation, and grammar. Any attempts at humor are solely the responsibility of the author and bear no claim that any and all readers will approve or appreciate said attempt at humor.
My name is DP, and I approve this message.
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: cbelt3
Date: October 18, 2019 12:39PM
interesting and a good bit of research. I was also unaware that the US was maintaining frozen bull semen for that long. Wow ! Good thing that.. keeping genetic baselines.
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: Acer
Date: October 18, 2019 01:00PM
Huh. Bull semen seems like the perfect low-overhead business. One bull and you'll have stock for decades. And on top of that, a couple years' worth of steaks and roasts.
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: freeradical
Date: October 18, 2019 01:05PM
How do they encourage bulls to donate their semen?
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: Racer X
Date: October 18, 2019 01:07PM
you do NOT want to know.
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: jdc
Date: October 18, 2019 01:10PM
Adam and Eve?



----


Edited 999 time(s). Last edit at 12:08PM by jdc.
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: rjmacs
Date: October 18, 2019 01:11PM
Quote
freeradical
How do they encourage bulls to donate their semen?

Late-night infomercials about lonely, unwed cows with no opportunities for a respectable family, but a desire to calve. Those big, sad eyes....





rj
AKA
Vreemac, Moth of the Future
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: Acer
Date: October 18, 2019 01:27PM
BarnHub
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: Bill in NC
Date: October 18, 2019 02:52PM
Two very tired bulls...
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: Lizabeth
Date: October 18, 2019 04:21PM
Quote
rjmacs
Quote
freeradical
How do they encourage bulls to donate their semen?

Late-night infomercials about lonely, unwed cows with no opportunities for a respectable family, but a desire to calve. Those big, sad eyes....


Actually the story from James Herriot about Tristan collecting bull semen popped into my head - never made into the TV series tho...
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: Racer X
Date: October 18, 2019 07:10PM
This sounds like a real cock and bull story.
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: srf1957
Date: October 18, 2019 10:51PM
Quote
freeradical
How do they encourage bulls to donate their semen?
.

Same way as sperm test . Metal @#$%& about 3 inches in diameter shoved up ass . Then the vet shocks until they @#$%& .
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: Acer
Date: October 19, 2019 07:34AM
Quote
srf1957
Quote
freeradical
How do they encourage bulls to donate their semen?
.

Same way as sperm test . Metal @#$%& about 3 inches in diameter shoved up ass . Then the vet shocks until they @#$%& .

Go on...
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: srf1957
Date: October 19, 2019 09:10AM
manual.

I helped vet do 8 bulls one spring for person was working for .

wiki how.

Sort of cartoonish picture.
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: sekker
Date: October 19, 2019 11:00AM
Quote
jdc
Adam and Eve?

No, clearly just two Adams...!
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: RgrF
Date: October 20, 2019 04:18AM
...or to put it another way

Most U.S. Dairy Cows Are Descended From Just 4 Balls
Options:  Reply • Quote
Re: Most U.S. Dairy Cows Are Descended From Just 2 Bulls
Posted by: pdq
Date: October 21, 2019 12:45AM
Quote
srf1957
Quote
freeradical
How do they encourage bulls to donate their semen?
.

Same way as sperm test . Metal @#$%& about 3 inches in diameter shoved up ass . Then the vet shocks until they @#$%& .

Damn. For the sake of the bulls, I was hoping it involved a well-thumbed copy of Hustler...err, Rustler.
Options:  Reply • Quote
Sorry, only registered users may post in this forum.

Click here to login

Online Users

Guests: 112
Record Number of Users: 186 on February 20, 2020
Record Number of Guests: 2330 on October 25, 2018