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errolston Profile
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Ex 97 2E
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Re: Semex Healthsmart and Immunity+


Wouldn't you expect the Immunity+ bulls to have really good health traits?

R-E-W Seaver (UK figures)
+0.2 lifespan (just above average)
-1.4 fertility (just below average)
-27 Scc (excellent)

Charpentier LFG Spectrum
+0.2 Lifespan
-3.4 fertility
-1 Scc

Hardly stellar figures apart from Seaver's SCC.
5/12/2014, 10:10 Link to this post PM via Email   PM via Forum
 
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Re:


Always be very careful when dealing with a study that was funded by the benefactor. Semex paid for the study, so it is possibly skewed towards them. There may be something to it, but not in our experience.
6/12/2014, 7:00 Link to this post PM via Email   PM via Forum
 
Stumpy123 Profile
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Re:


Does seem rather amusing how errolston fails to acknowledge
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I just went looking and found all these proven sires with excellent health traits
7/12/2014, 12:32 Link to this post PM via Email   PM via Forum
 
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Re: Re:


quote:

Stumpy123 wrote:

Does seem rather amusing how errolston fails to acknowledge
Facebook
Impression
Barcode
Número uno
Halak
Manchild
Dvd
Supersonic
Sapporo
I just went looking and found all these proven sires with excellent health traits



Not really failing to acknowledge, more pointing out the oddities. It's like our new type weighted index - If you have a multiple trait index where the bull ticks every other box exceedingly well even if they have a little less type, they will go higher on that index because they are so good for those other traits.

@Errolston
Yes you would expect, if the figures were highly correlated to those currently measured traits, for them to have good scores for them. And that one looks a bit odd for sure. For that bull to end up high for that trait, he must tick all the boxes you cant see. Therein lies the issue - if we cant see (proof wise) how he can be that high, how do we trust it? Do we put blind faith in to trust the bull company? It makes it a lot easier to believe in something when you have what you would consider to be a solid reference point.

The funded study thing is also why I remain a bit suspicious of A2A2 milk. I don't think I've read a study yet not funded by the A2 corp. Whether or not the studies are legit, there still remains the possibility of bias.

Independently verified studies are far better IMO.

And with any study you do read, this xkcd is a good reminder to have a good think about it first.

--Log in or sign up to see linked image content--

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7/12/2014, 23:17 Link to this post PM via Email   PM via Forum
 
bazza20 Profile
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Re: Re:


quote:

Craigalea wrote:


The funded study thing is also why I remain a bit suspicious of A2A2 milk. I don't think I've read a study yet not funded by the A2 corp. Whether or not the studies are legit, there still remains the possibility of bias.

Independently verified studies are far better IMO.

And with any study you do read, this xkcd is a good reminder to have a good think about it first.

--Log in or sign up to see linked image content--




To that picture, water also kills cancer cells in a petri dish. Haha.

As for A2 milk have you read the most recent study. Not the conclusion, the actual study.

In the results the A1 milk group of the tiny sample size actually had less stomach upsets yet somehow in the conclusion they come up with A2 milk is better. Then it's reported everywhere that study finds a2 milk is better. No bias there?????
7/12/2014, 23:34 Link to this post PM via Email   PM via Forum
 
Craigalea Profile
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Re:


Yup, jury is out on A2.

Back to topic, I grabbed the proofs of semex's latest Immunity + proven bulls (from here: [url][sign in to see URL]

Most are fine for the traits that are the most correlated, makes me wonder about those one or two that don't seem to be as good on health traits as the majority... Latitude doesn't really look too flash on US proofs. He is one of the only two bulls without US daughters in these proofs though. 102 DPR 104 HL and [sign in to see URL] on his canadian figures - still a bit average.

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Side note, I really love the Accelerated bull search, makes this a 2 minute job.

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8/12/2014, 1:10 Link to this post PM via Email   PM via Forum
 
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EX90
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Re:


When will the new Australian indexes be used?
8/12/2014, 4:32 Link to this post PM via Email   PM via Forum
 
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Re:


Next proof run is when they are launching.
We have two proofs runs a year April/August and a ABVi (interbull) update in December.

I do have some preliminary data with now the new indexes will look & how they compare to old. I may be able to show a little of how it stacks up - but only on current proven bulls.

Off topic side note, we are also looking at getting ADHIS to have another look at how some of the type stuff is calculated, and do things a bit better there too. i.e. as teat placement currently stands a bull on 99 is perceived to be horrible for that trait and a bull on 120 as great, the one on 99 though is far closer to the ideal than 120 - which you may end up struggling to get the cups on as her teats are too close. So we are working with them to display a lot of those intermediate traits differently (also in this category are things like leg set & pin set).

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8/12/2014, 5:10 Link to this post PM via Email   PM via Forum
 
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EX90
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Re: Semex Healthsmart and Immunity+


Will classifications link [sign in to see URL] [sign in to see URL] values? It seems the adhis and classification scores are not linked at all?
8/12/2014, 10:23 Link to this post PM via Email   PM via Forum
 
errolston Profile
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Re: Semex Healthsmart and Immunity+


Stumpy, I chose those two bulls because they were the original two daughter proven bulls that were promoted as Immunity+. Both have a large number of daughters in their proofs.

The bulls you listed are first crop. Their health traits are still very low reliability.



Last edited by errolston, 8/12/2014, 10:59
8/12/2014, 10:49 Link to this post PM via Email   PM via Forum
 


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