mikeoh wrote: » What is the difference between single carrier and double carrier and replication etc. and how in the hell are more and more Angus bull presenting with it.........is it because of dodgy breeding?
pedigree 6 wrote: » I had to look it up. The double muscle gene. Angus cattle are turning into Belgian Blue cattle. Learn something new everyday.
greysides wrote: » I've a feeling there's a strain of double-muscled Charolais cattle too.
pedigree 6 wrote: Learn something new everyday.
Genghis Cant wrote: » Culard Charolais by any chance?
mikeoh wrote: » But surely it shouldn't be in native breeds....just talking from a Angus point of view I see new bulls like gear fury and westellen diageo are carrying it as for that bull Peter pershore he no more looks like an Angus . I say the neighbour's lim bull must have slipped in somewhere in the back breeding
blue5000 wrote: » AFAIK belgian blues started off from shorthorn cattle that lacked the gene, recessive might be the technical word. By in-breeding or crossing only animals with the double muscle within the shorthorn breed they eventually ended up with the belgian blue breed. It happened after WW2 when food was still scarce. It's possible a bit of out crossing happened in Canada with angus cattle before they closed the herd book, now 10 or 12 generations on of pedigree breeding the recessive (?) gene has managed to sneak it's way in to pedigree angus cattle here. Or maybe it was always there.
tanko wrote: » From a commercial point of view, double muscled Angus Bulls sound like a great idea. Easy finished cattle with big ar$es, what more could you want.
wiggy123 wrote: » Myostatin gene from my understanding is ok a trait, the problem is-if it becomes the double mystatin gene--as its the BB then! which not good for angus pb breeding... limousine had the myostatin gene, but its a ok gene... as for that pershore bull-no harm never was a true angus.. see his pics--more a black lim/bue cross.. along irish folk never used him...
If you cross a cow with 2 F genes and a bull with 2 Q genes. Will the calf have 1 F and 1 Q (1 gene from both Cow and bull) or is it 25% double F, 25% double Q and 50% 1 F 1 Q?
I don't know but @patsy_mccabe or @tanko can point you in the right direction
With polled cattle, the polled gene is dominant, but I've never heard of dominance mentioned with the Myostatin gene. The attached document below does say that the Q variant is 'partially dominant'. My guess is they don't know enough about dominance yet.
So to answer your question, it's a roll of the dice. As you said, 25% chance of double F and 25% double Q, 50% chance F/Q.
Limousin-Fact-Sheet-3-Myostatin-FINAL.pdf
they get one from each parent your not going to get a double nt821 off a friesian cow for example
Thanks, I’m trying to understand it a bit more so to cross the right bulls on our cows
Not many bulls have two Q genes afaik, are you looking at a bull that has two?
I see Claddagh McCabe has two Q genes which is very unusual for a Lim. Madison and Joskins have one Q and one F.
doesnt change much therell be good and bad bulls with all types of myostatin.
Just used 2 F’s and 2 Q’s for an example, thought it might be simpler
Have myostatin tested some of the cows, 2 F’s, 1F, F+Q, 1Q, 1N are some of the results, I just wanted to understand if 1 gene came from the dam & 1 from the sire, or is it a possibility of different options based upon the combination. That way I can avoid certain bulls for certain cows. I’d like to avoid 2Q’s or 2N’s. I’d No Calving issues with 2 F’s
It's always one from each parent. It's 50:50 which one is passed on
The 2 Fs will definitely pass on an F as they don't have anything else to pass on so best to avoid any bull with an F on them unless you like Russian Roulette as it'd be a 50% chance of a bull with 1 F passing it on.
Below shows how it would work if you had both parents with mixed genes.
ya ur right one comes from dam and one from sire best bulls to use on cows with a q or n are double f loki, eby etc. doesnt mean u cant use q/f but just more risk plenty of bulls with q gene used on blue cows without much hassle
