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craethke Profile
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EX95

Registered: 09-2011
Posts: 686
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Re: Bulls that breed big appetites into their daughters.


No doubt Bazza, I think the point being that the efficient cow (genetically speaking and well managed) that has high intakes, will shine even more if she is aggressive at the feed bunk. Maybe she makes 2.5# milk per lb DMI, vs a slacker cow that makes 1.5-1.75# milk per #DMI.(Just using hypothetical numbers for illustration purposes). If she has relatively high intakes, she looks even better and makes you more money yet.
9/8/2014, 0:31 Link to this post PM via Email   PM via Forum
 
holsteins Profile
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EX95

Registered: 11-2012
Posts: 530
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Re: Bulls that breed big appetites into their daughters.


Its tricky to work out feed efficiency unless all cows are fed individually. How else can your accurately measure it?
 Also there are so many different ways cows convert feed, some will milk more, some will put on condition etc... so how can you measure it accurately for the traits you want?
Twist was mentioned above, its widely known that he gets less feed than the other bulls at the stud just because he was putting on too much weight, lets see if he passes that trait on, that would be a major breakthrough in my opinion
9/8/2014, 11:36 Link to this post PM via Email   PM via Forum
 
errolston Profile
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Ex 97 2E

Registered: 07-2003
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Re: Bulls that breed big appetites into their daughters.


Cogent had the same story about Crichel Principal
9/8/2014, 12:04 Link to this post PM via Email   PM via Forum
 
PADairymen Profile
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Ex 97 2E

Registered: 12-2009
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Re:


I think they have done research studies to find which allele transmits feed efficiecy. I wonder if the feed efficiency is based off of genomics only.
9/8/2014, 14:37 Link to this post PM via Email   PM via Forum
 
AHVP Profile
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EX92

Registered: 07-2012
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Re: Bulls that breed big appetites into their daughters.


quote:

bazza20 wrote:
I've read before that temperament is negatively correlated with longevity.



It does seem so... I remember some years ago one of the most "consistent" bulls for temperament (and so did a lot of his numerous french sons) was no other than Mascot.
On the other hand you often heard about how nasty were many Tradition-related cows especially Leadman's and Leadman sons' (like Lukas) as well as one bull sampled in France called Travis (Tradition bro to Bell Troy). I recall them being very hard to handle in their first years but then it turned up his has the biggest numbers of cows with over 200,000 lbs LT. So, there might be some influence in some cases, when cows have to compete hardly.

9/8/2014, 17:06 Link to this post PM via Email   PM via Forum
 
BlackCaviar Profile
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Ex96

Registered: 07-2012
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Re: Re:


quote:

PADairymen wrote:

I think they have done research studies to find which allele transmits feed efficiecy. I wonder if the feed efficiency is based off of genomics only.



That sounds great, so not based on any real data then? Even with proven sires you keep part of the genomics in the equation. If you want to make a mest of EBV's, just do it !!!! pffffff
9/8/2014, 19:06 Link to this post PM via Email   PM via Forum
 
jbeyer Profile
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GP81

Registered: 08-2014
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Re:


We find our Denison's and ReDesign's to be big eaters. They are wide chested cows with piles of milk behind them. Bigger cows, but still think they pay good the way they milk
16/8/2014, 3:13 Link to this post PM via Email   PM via Forum
 
Northcreek Profile
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VG87

Registered: 04-2012
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Re:


I still like to breed for appetite regardless of efficiency, if feed efficiency is equal between two cows, wouldn't the cow with the bigger appetite still be more profitable? all else equal
16/8/2014, 14:20 Link to this post PM via Email   PM via Forum
 
Craigalea Profile
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Administrator

Registered: 12-2004
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Re: Re:


quote:

PADairymen wrote:

I think they have done research studies to find which allele transmits feed efficiecy. I wonder if the feed efficiency is based off of genomics only.



I know of an Australian study that's been underway for a while with individual feeding of animals & trying to link it in/find the genes that are correlated with better feed efficiency. It's a great trait but so hard to accurately measure for large data sets.

Linky

Related paper

---
Cattle art and bad cow puns: http://sketch-a-bull.tumblr.com/
25/8/2014, 6:43 Link to this post PM via Email   PM via Forum
 


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