If you want to avoid calving difficulties don’t put bulls with Q or N genes on cows with those genes. Put the bulls with Q and N genes on cows with one or two F genes.
The problem nowadays is that Q and N genes are creeping into limousin breeding and even Angus breeding. If a farmer doesn’t know this and puts a bull with these double muscle genes onto a cow with them unknown to them, that’s where problems can arise.
Sure Its about the big bootys in cattle breeding these days unfortunately.
Are your cows with the Q genes CHX cows and the cows with the N genes BBX or PTX cows?
The Q cows are 1st cross CH and 2nd gen LM. The N is a CHxAAxBB. I put Lodge Hamlet on a CH heifer once and had to section due to extreme muscle with bone. I now know that heifer is 1F 1Q. My ideal sequences are ++ 1F, 2F, 1F 1Q, 1F 1N
Ah OK. So F/Q in all cases above.
Can you tell the Myostatin status from the genomics test alone? I've suspected that if the calving difficulty figure is higher than the average of the parents, then the Q gene has been carried to the offspring.
I mean if it's so important, why don't ICBF include it in the genomics test?
You can pay Weatherbys for the test, they have to be genomic tested first.
I think you can find this in your herdplus profile now
Some fekin double muscled Limerick Hurlers atm...
any animal genotyped under the age of 3 has results on icbf
Where can you see these results on ICBF?
go into icbf on desktop version
view profiles
genomics
press on major genes
I got a calf done during the summer as wasn't sure of sire (used 2 different straws) and it's blank. Does it take a while to get the results for myostatin?
I didn’t know that was there, it’s good that they’ve started testing for myostatin.
I have a Sim x Lim heifer here who is 3.13% AA but is polled which i was surprised at. I see that she has one copy of the Polled Celtic gene, it’s funny the way the polled gene works sometimes. The other bulls in her breeding are horned bulls. She has an older full sister who is also polled and has one copy of the polled gene.
That's great to know. Only seems to be available for animals genomic tested since 2021. I have one heifer here that is Myostatin F94L/Q204X. Surprised at her as she came back easy calving on the Genomics.
Is it possible to see the Myostatin for the AI bulls on the ICBF database?
Most of my heifers are coming up double F94L so what myostatin is best to cross on them?
Are they limousin? They call the double F94L, the profit gene, for good reason - less calving difficulty and better milk and fertility. Stick to double F94L bulls to breed replacements and maybe try a few tested F94L/Q204X on bigger framed cows with good calving difficulty.
What does a fail for quailty check mean on the results. Just answered my own question, we had to retest him as hair sample wasn't sufficient...
Agree if ICBF showed the bulls myostatin it would be beneficial
it’s in all the catalogues I’ve seen
As heifers ? Eby or lm2014. As cows ,if you’ve 3/4 bred limousines or good half breds. Blues only show on the road.
Just cos they have a gene doesn’t make them hard calved as a result. Theirs blues with double muscle used in dairy cows and theirs limousines with double f gene that are hard enough calved
Ya they are LM & 3/4 LMX.
I just checked my CH bull results on icbf and he is showing up as nocopy for everything on the list so what does that mean?
If he’s no copy then he’s myostatin free or +/+
Yes most current catalogues are showing this, but any older bulls are unknown
That's what I'm on about. I can't find status for older bulls. For example the heifer I have here that is F94L / Q204x is by Ampertaine Commander. If he is F94L /F94L then her mother must be F94L/Q204X.
Ok so is that a good thing or a bad thing, sorry about the questions I trying to understand the whole science of it.
I don’t know if I’d say good or bad. It’s just another factor. I’d a bull with 1Q, all his calves were 1Q and had a nice turn in them, no difficulty in calving. With the +/+ bull you can use him on any cow with the confidence of not having to worry about the cows status. Plus it gives you time to understand the myostatin better and decide which way you’d like to go
I see ICBF are now funding myostatin testing of all genomic tested cattle (at least in pedigree) useful for breeder and buyers as well
Think the Charolais society have been doing it, others probably have too
yes i have seen for Angus
I seen somewhere the Dept are pushing for all calves born to be DNA tested. Which will be another cost to the farmer, I think if this happens the Orgs should request free myostatin
I think if too much info is known genetically, then it would lead to a greater narrowing of the gene pool. Too much inbreeding isn't good.
