Depends if they are identical twins or not. Identical twins come from the same egg.ANAZAZI":2lhq7smg said:Cow is to blame. She either has two eggs or one egg ready when she is in estrus.
Spontaneous split of the egg resulting in two fetuses Sim but still from the cow's side...sim.-ang.king":2z0l6n91 said:Depends if they are identical twins or not. Identical twins come from the same egg.ANAZAZI":2z0l6n91 said:Cow is to blame. She either has two eggs or one egg ready when she is in estrus.
Fire Sweep Ranch":3f4tj8og said:Always the cow. Twins are either two eggs, which she provides, or an egg that splits. I have seen evidence that twinning rate can be related to improved nutrition at the time of conception. We call it "flushing" when breeding pigs. Bump up the sows nutrition about 30 days before breeding and you can expect larger litters.
Son of Butch":3oh3mdr6 said:We have a winner.
Fire Sweep Ranch":3oh3mdr6 said:Always the cow. Twins are either two eggs, which she provides, or an egg that splits. I have seen evidence that twinning rate can be related to improved nutrition at the time of conception. We call it "flushing" when breeding pigs. Bump up the sows nutrition about 30 days before breeding and you can expect larger litters.
Correct concise answer with interesting aside fact.
Dun gets bonus point for pointing out sire's heritable influence through his daughters.
I believe this is also the direction ga prime was going, inherited reproductive influence with the scrotal mention.
There is a theory, which I find quite compelling, that a protein in the sperm cells of some bulls, will prompt the embryo to split, thus identical twinning may well be caused partly by the bull. The other side of that theory is that some cows' eggs will be susceptible and some won't.alisonb":292kfm6x said:Spontaneous split of the egg resulting in two fetuses Sim but still from the cow's side...sim.-ang.king":292kfm6x said:Depends if they are identical twins or not. Identical twins come from the same egg.ANAZAZI":292kfm6x said:Cow is to blame. She either has two eggs or one egg ready when she is in estrus.
It shouldn't as gnrh only causes them to drop the egg that she was already going to drop by herself it just does it when we tell her to. I HAVE seen sets of twins and even a few triplets born to cows that were synced in the past that I blame on the "more medicine is better" mentality being applied to FSH drugs.branguscowgirl":q3l0v6mr said:Do any of you think that it could also be due to syncing cows at the wrong time, that are already preparing to drop an egg naturally?? Just curious if that could play a role.