Releasing wild boar !
- Thread starter Jamouk
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Triggermortis
Well-Known Member
But any child must have more or less genes from one parent, it’s what determines the sex of the child?
The "iron age pig" is a straight cross between a Tamworth and a wild boar. I don't think they've been developed into a true breeding composite.
Therefore, if you mate together two iron age pigs, the predicted outcome of the mating will be 50% iron age type piglets, 25% Tamworth type piglets and 25% wild boar type piglets.
All you have to do is retain those piglets that favour the wild boar in type, and breed from them, and do the same for a few generations, to end up with something that is, to all intents and purposes, a wild boar.
You could do exactly the same with the Tamworth in the makeup.
It's not difficult.
Similar breeding methods were used to bring the rare Norfolk Horn sheep back from the brink of extinction.
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jthyttin
Well-Known Member
Key word here is "type". You're only controlling for one or few variables (like visual appearance). In addition that the "wild boar type" pigs you breed differ from real wild boar in other ways (than the variable you controlled), there might be some recessive genes/features that pop up in later generations when stars get aligned. Let's say you get one piglet in a sounder, some generations later, that doesn't conform to your control variable (doesn't look like wild boar). Of course you cull it out, but it just shows that your stock has recessive genes that true wild boar doesn't.
Yes, that's exactly what you do. And keep on doing, until you get consistency. It's standard practice.
And these days the whole process can be accelerated by using genomics.
I use genomic data when planning my sheep breeding strategy, so that I can select for important characteristics that I can't see by eye.
Only at a pedantic level, and no it isn't what determines sex. The sex of a child is determined by whether it has two copies of the X chromosome or an X and a Y. The Y is slightly smaller, frankly pretty crappy, and contains fewer genes. The SRY gene on the Y chromosome is the single gene which determines sex in humans.
Why would you? Even if they were pure breed wild boar if they are in a small fenced area they stop being wild. If it's about pork I would just get a better breed that produces good meat without as much hair and just do it properly. I really don't get it boar or deer for that matter they are either wild or you are just farming for meat.
shakey jake
Well-Known Member
money? fun?
These numbers are wrong. You'd get those numbers for a monohybrid cross - if pigs and boars differed in only one gene with only two equally common alleles. The percentage of pure type offspring would be =100 divided by (2^number of alleles)^number of genes. Pigs have over 20,000 genes. Even if pigs differed in only 100 different genes, the probability of a pure wild boar type piglet would be under 0.0000000....(50 more zeroes) ...002%.
It isn't difficult, but it's a fudge and all it achieves is to produce a new hybrid breed which resembles a boar but is not one. The only way you could get back to something close to a wild boar is by repeatedly selectively breeding successive generations of offspring with pure wild boar until you'd diluted the bloodline to near-zero percentages of pig DNA.
Nearer the opposite types of methods, surely? Backcrossing and outbreeding with derived breeds, as opposed to inbreeding as you describe above?
If shooting a animal in a small area (farm animal) is fun then crack on but that's not for me.
No.
The child has exactly half its DNA from each parent.
There are 23 pairs of chromosomes in each of us, i.e. 46 chromosomes in total. For each pair, we get one chromosome from our mother and one from our father. One of those 23 pairs is the X and X/Y pair.
Males have an X and Y chromosome. Females have two Xs. Therefore, the sex of the child is determined purely by whether the child gets the X or the Y chromosome from the father: the corresponding one in that pair comes from the mother, so is always an X. Unless something goes really badly wrong.
Boars have 18 pairs of chromosomes (36 in total). Pigs have 19 pairs (38 in total). Unravelling that is impossible. Even if the number of chromosomes were the same, it would take two lots of 2^38 offspring to be alive at the same time, one of which is male and the other female. Anyone fancy 2 lots of 274,877,906,944 pigs to search through? Anyone know where to keep 549,755,813,888 pigs without the Greens noticing?
On selecting traits to get something that looks like a boar is much easier, but the genes would be quite different to those of a wild boar.
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shakey jake
Well-Known Member
are you sure pigs and boar are different i dont understand the science, they have the same latin name.
have you got a link to an article?
Upon seeing your post, I put something into Google and it came back with A decade of pig genome sequencing: a window on pig domestication and evolution - Genetics Selection Evolution
By "evolution" it means selection. By either word, it means loss of genetic diversity, as deleterious mutations outweigh good ones by orders of magnitude, so to select a trait you effectively throw away the stuff that you don't want but happens to keep the animal robust.
shakey jake
Well-Known Member
just found an article, weird science
So, knowing someone that did similar (iron age and crossed with boar), I can 100 percent see the logic behind that. After a couple of breedings the spawns that were created were right evil little bastard's and looked like a boar, I'm presuming their boar percentage in the genetic make up were rather high. Looked like a boar, walked like a boar, aggressive as a boar and tasted like one...
Visit an out door pig unit to see the fencing needs, also a good idea to look at a before and after photo of the ground so you can see what will happen.
For it to be benificial to the ground you will need to have a rotational system in place to avoid excessive damage which may prove expensive depending on your ground.
I've used various livestock in the past to help get a woodland back under control, never pigs but I have worked with them a lot, personally I think a nice idea that will turn into an expensive disaster
For it to be benificial to the ground you will need to have a rotational system in place to avoid excessive damage which may prove expensive depending on your ground.
I've used various livestock in the past to help get a woodland back under control, never pigs but I have worked with them a lot, personally I think a nice idea that will turn into an expensive disaster
Bavarianbrit
Well-Known Member
So as I do not know who my father really was is there a data bank to find out which ethnic background he had? Eurasian stock I assume as I am of the dreaded white.
Somebody tried it several times in the South West, the Devon lot were all shot quite quickly. The Forest of Dean lot became established.
I wonder if the same people were responsible for the Beaver releases ? And no doubt Pine Martens
Guerilla ‘rewilding’ must be a thing. I do suspect there is a very small network of people covertly breeding animals for release in attempts to return lost species to our countryside.
I wonder if the same people were responsible for the Beaver releases ? And no doubt Pine Martens
Guerilla ‘rewilding’ must be a thing. I do suspect there is a very small network of people covertly breeding animals for release in attempts to return lost species to our countryside.
Not significantly different from stalkers who've helped muntjac and sika get established in new areas.
Quite a bit of deer migration is by the Ifor Williams method, I suspect.
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