JDJ American Bulldog Preservation Board: Mark

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Mark

Posted by BWK on 1/4/2008, 2:13 pm, in reply to "BWK"
91.95.192.117

...thanks for not pulling my password!!
I don't think you got exactly what i meant this is a very interesting but hard subject to discuss in English, but i guess my English is better than your Swedish!?
All i'm trying to say is with inbreeding theres risk involved and a possible disaster overdone, and i don't talk about a single breeder using this method now and then, but if ALL are doing it ALL the time over a long period of time.
Even if one perfect stud is over used you could get in trouble when the second generation is born, theres an example of that about a bull called Matador who carried a ressesive defect for one testicle, first gen. no problems and the offspring were as healthy as there father but with the generation, inbreeding half brother to half sister, the ressesive gene now doubled popped up resulting in infertility.
If a closed population (like the JDJ bulldog) is to stay healthy for an unlimited period of time the active population needs to be 500 or else they rapidly start to lose there genetic diversity and you need to add fresh blood.
It is impossible to weed out all defect genes, the average living being carries about 5-10 genetic defects programmed into there dna.When i mentioned foundation dog i in my post was generally speaking of FCI approved breeds.
I believe there problems comes from show breeding for a sertain look using inbreeding to get it.
I would not recommend it to start with, it is in my opinion for the experienced breeder, i don't do it my self.
Would you recommend this breeding practice to a new breeder having his first or second litter??

I hope i don't sound like an ass, remember this is not my nr. one language!!

--Previous Message--
: Weed out the defects from gene pool and I don't think it was a small gene pool with
: "12 to 14" different dogs(thats not a small gene pool) thats for sure! The
: people who cull and take the risk I believe will see results and make the
: difference, The real test is "what are you producing?" Everyone already
: knows what we get when we do noting! Personally I have seen Great results going
: tighter then set your tight stock into something looser. Paul C. has a full brother
: to sister b###h of mone she will be bred to Bo watch what that breeding produces!
: Now that b###h is as muscled up and near perfect conformation as one could ask for.
: When I need an out cross it will be a very tightly bred Old Southern White who has
: great health ,temperment ,structure but tight also. Remember we are not going from
: one foundation dog but two dozen different dogs.
: Where do you get "the" foundation dog? Not looking for anyone to agree by
: the way , I usually keep my thoughts on breeding to myself as I will not argue and
: enjoy just doing my own thing. I jumped in because I happen to like Bryan and his
: desire to make good positive changes ,can we agree the breed is a mess? what would
: you do to change that?
: You or anyone does not have to agree I won't pull your password.LOL! Everyone sees
: things differently. Take Care Bud: Mark @ Big Sky
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: --Previous Message--
: I don't agree with Mark, the gene pool was small, yes inbred dogs breeds
: consistently
: but they also double up on defect genes, and a population under 300 will start to
: lose genes resulting in depression, early signs are lower fertility, weaker immune
: system, smaller dogs and shorter lifespan.
: Most breeds recognized by FCI is a result of inbreeding but they are not the
: healthiest dogs around, they all have ONE major defect from the foundation dog that
: breeders then have problem avoiding.If conformation consistency is your main
: objective keep inbreeding everyone, personally i don't think these dogs need more
: uniform and over all health is my main concern.
: Don,t get me wrong i don,t want other breeds/lines crossed into our Johnsons but i
: think a widening of GOOD dogs used wouldn't hurt.
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: PS there should say LOWER not HIGHER in my previous post .
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