Menu
Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Forums
Cattle Boards
Breeds Board
Breeding a crossbred bull question?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support CattleToday:
Message
<blockquote data-quote="WalnutCrest" data-source="post: 1360733" data-attributes="member: 21715"><p>Really? </p><p></p><p>If you take 7/8ths bulls and breed them successively to females starting with mutt cows, but count them as fullbloods for the purpose of "breeding up" eventually you end up with a mutt breed that won't breed true and, out of which, quite a bit of potential heterosis had been lost. </p><p></p><p>7/8ths bulls on a mutt cow gives heifers that are really 7/16ths, but counted as 1/2</p><p></p><p>Taking those heifers and breeding them to a different 7/8 bull, you get calves that are 65.6% but counted as 3/4.</p><p></p><p>Then taking these actual 65.6% females (who are counted as being 3/4 but really aren't), and they're bred to another 7/8ths bull, you get calves that are 76.6% but counted as 7/8 fullbloods?!</p><p></p><p>Now, image the dilution if someone would use a series of 76.6% bulls (that are called a fullbloods but really aren't). After three generations, the resulting 'fullblood' cattle would only be 67.0% of the reference breed. But they'd be called fullblood. </p><p></p><p>How much heterosis is lost to the commercial bull buyer at this point?</p></blockquote><p></p>
[QUOTE="WalnutCrest, post: 1360733, member: 21715"] Really? If you take 7/8ths bulls and breed them successively to females starting with mutt cows, but count them as fullbloods for the purpose of "breeding up" eventually you end up with a mutt breed that won't breed true and, out of which, quite a bit of potential heterosis had been lost. 7/8ths bulls on a mutt cow gives heifers that are really 7/16ths, but counted as 1/2 Taking those heifers and breeding them to a different 7/8 bull, you get calves that are 65.6% but counted as 3/4. Then taking these actual 65.6% females (who are counted as being 3/4 but really aren't), and they're bred to another 7/8ths bull, you get calves that are 76.6% but counted as 7/8 fullbloods?! Now, image the dilution if someone would use a series of 76.6% bulls (that are called a fullbloods but really aren't). After three generations, the resulting 'fullblood' cattle would only be 67.0% of the reference breed. But they'd be called fullblood. How much heterosis is lost to the commercial bull buyer at this point? [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cattle Boards
Breeds Board
Breeding a crossbred bull question?
Top