EAST TEXAS HOG DOGGERS FORUM

Breeding question?

This is for some of you that have bred dogs awhile are maybe some thats been at it for just a little while   .  What is your favorite type of breeding are the breedings you have had the most success from ?
 
Father to daughter
Mother to son
Uncle to niece
Aunt to Newphew
Half Bro to Half Sister
Grand Father to Grand daughters

so on and so forth ?

TexasHogDogs

Figured there would have been a few replies on this one already! :o

It depends on the preformance and pedigree of two individual dogs selected , the traits and characteristicts displayed by each dog that you are looking for and each family of dogs and their  history.  Just breeding one way or another for the sake of what has worked, or just to breed this dog to that dog, dont meant it will again or that it will work on any dog or line. I can't see any general rule that works best across the board. JMO

I generally take the best of the mother or father for instance the litter I have now. The father and mother are both great dogs. The father and mother are both hard hunting long range dogs. But I like the father more if there are 5 hogs in the bunch he is not going to stop untill all five are killed if they all stay together. The mother on the other hand will stay with them till they get stopped but has to be pushed to roll out after them.  I have bred both of these and they have made outstanding crosses. I am now going to breed the father to the daughter, because of the qualities the father posses. when those get of hunting age will let you know how it turns out. It is a process that has been in the works for some time just wanted to make sure that the 1st litter I had all went to different hunting homes. Gave to 5 freinds and relatives all 5 are making great dogs they are 9mo old and two of them have struck their own hogs and all have some range behind them. With this second litter I will hope them come out the same way. To be continued ....

Dog breeding...kind of like the search for the Holy Grail for me too. I have raised 6 generations of my dogs and have yet to find a "perfect" way to cross the dogs.

I try to pick a male that compliments the faults a female may have, or vice versa. Say one dog has a hot nose and I am looking for more nose, I try to breed to a dog with a better nose in hopes the pups will have better noses than the hot nosed dog. Sometimes it works, sometimes it doesn't.....

The cross that produced the best dog for me was a linebred cross, just a little hard to explain. My Dixie's mother was sired by a dog named Tip and out of an old female (that I didn't own) named Dixie also, she was  cow dog on a 15,000 acre ranch south of me. Lets call the old dog DixieX.  My Dixie's sire was a dog named Rufus, that was sired by a dog named Duck and out of the same DixieX female. So her father and grandfather on her mothers side were half brothers......kind of hard to follow without showing a pedigree. My Dixie was double bred DixieX, hence her name. Unfortunately, by the time my Dixie was 2-3 years old her father was dead, her grandparents were dead and I had sold her mother to a guy out of state (I had 3 littermate sisters and she was one of them) and he had gotten her killed. So I could never duplicate that cross.

I have tried aunt/nephew breedings twice, but didn't get what I was expecting out of the cross. I thought the dogs would be stout gritty dogs, they actually came out finer boned and smaller than what I thought they would have been, but that could have been just that particular cross too.

My Monkey dog (that I didn't breed) is out of a half brother half sister breeding. I like the dog but he can be a little touchy at times. You don't want to try and touch him if he is in the dogbox....... He also has an underbite which is often a result of too closely breeding dogs. None of my other dogs have an underbite.

Some of you other guys post your good (or bad) crosses. I am curious to see what has worked for others.

For myself some of the best dogs I have ever owned came out of a half bro x half sister breedings .  I like half bro x half sister breedings and I will tell you why.  Let say you have a great old dog that produces great and you breed him to a great bitch of a proven out cross blood and you get a liter and you get some very very good dogs out of this .  Ok now I take the same great old dog that is the sire of that liter and I breed him to another great producing bitch of another out cross blood and I get some really high calibar dogs out of that liter .

Now what I do is I take a dog from the first liter the very best one that I like and I take a bitch out of the other liter sired by the same great old dog but out crossed on two great producing bitches of differnt bloodlines but proven crosses for my great old male and I breed these two together .

What I end up with is still  50% of my great old male because he is both the sire's daddy and the dam's daddy so that is 50% pure my great old male now the gyp on the top side was a proven out cross so that is 1/4 are .25% of that proven out cross in there that I know works now the gyp on the bottom is of another proven out cross so it is 1/4 are .25% of her bloodline .

So what I end up with is this ..............


50% of my great old male and his bloodline which is what I wanted because of his gene pool and his heartige .


and to make it work I got two proven out crossed  bitches on both sides that I know works with my great old male so I have a 1/4 of each of there blood as catylest blood to bring out the hybred vigor in my pups .  I already know the bitches cross with him because I have bred him to them and made great dogs the Dad and Mom  to these pups now !

What I have now is a liter of dogs that still carry 50% of my great old male in these dogs  just enough to be able to use them as stud dogs and I have 50% outcrossed blood in them that is well more than enought to make them have the vigor they need to make great dogs so these dogs are not really in bred enought to hurt you and they are not really outcrossed enough to hurt you and they are bred on proven crosses from my great old male but I just doubled him up and I still got  1/4 outcross from one bitch on the top and a 1/4 of another outcross on the bitch on the bottom but are both proven crosses for my great old male.

Over thelast 26 - 27 years I have found this to produce some of the very best performace dogs I have ever seen and also at the same time tight enough bred to made some of the best producing dogs I have seen .

By far my kind of breeding .  There is no error in this because all dogs used are proven crosses and proven linebred!  Only thing I can say is if you do this type of breeding are have been a breeder long enough to aquire this types of dogs you better be damn sure you have culled if  not your in big trouble .

TexasHogDogs

I agree with skoal, it depends on the dogs you are breeding.  How close their genetic relationship will determine more than what they are the family.  For instance, it is possible for an uncle/niece breeding to be closer than a brother/daughter breeding. 

Also, linebreeding and inbreeding doesn't cause faults, it brings to the surface faults that are there. One other thing I want to bring up is the "Proven Mating".. I don't believe there is a such thing.  Just because you hit pay dirt 1, 2, or 3 times in a row, doesn't mean you will the 4th time.  If breeding was that easy, many people would have top dogs....

BREEDING IS THE SAME WHETHER IT BE BETWEEN TWO DOGS OR TWO HUMANS OR TWO GARDEN PEAS. UNDERSTANDING GENETIC PRINCIPLES WILL NEVER REPLACE THE NEED TO KNOW YOUR DOGS AND USE THEM HARD . . . BUT IT SURE WON'T HURT YOU.

IT IS ALL A MATTER OF LINING UP LIKE GENES AND TRAITS. NOTHING HAPPENS BY ACCIDENT. AND ALMOST NOTHING HAPPENS BECAUSE YOU BRED TOO CLOSE OR TOO DISTANT, ETC. WHETHER YOU CHOOSE TO LINE BREED OR INBREED OR OUTCROSS . . . YOUR METHOD WILL NOT PREDICT THE OUTCOME. THAT WOULD BE LIKE BLAMING THE PAINT BRUSH BECAUSE YOU DON'T LIKE THE COLOR OF YOUR HOUSE. IF BREEDING CLOSE PRODUCES A BOW LEGGED PUP IN YOUR LITTER . . IT ISN'T THE METHOD OF BREEDING OR FROM BREEDING TOO CLOSE . . IT IS BECAUSE THERE IS A DOG WITH BOWED LEGS WAY BACK IN YOUR PEDIGREES AND HIS GENES ARE BEING CARRIED BY BOTH PARENTS AND OCCASIONALLY WHEN YOU DOUBLE UP ON HIM THE TRAIT (BOW LEGGED) MANIFESTS ITSELF.

YOU CAN BREED BROTHER TO SISTER AND IT MIGHT BE A COMPLETE OUTCROSS BASED ON THE GENES THEY CARRY AND PASS ON OR YOU MIGHT BREED TWO UNRELATED DOGS AND IT WOULD SERVE AS INBREEDING BECAUSE OF THE NUMBER OF LIKE GENES THEY POSSESS.

ONE THING IS FOR CERTAIN . . NONE OF THEIR GENES ARE MARKED WITH LITTLE STAMPS THAT IDENTIFY "MOTHER" OR "AUNT" OR "DOUBLE SECOND COUSIN" . . . SO TO BASE ANY MATING ON THE RELATION OF TWO DOGS, ONE TO ANOTHER, IS LIKE SAYING YOU HAVE A BETTER CHANCE OF WINNING AT ROULETTE BECAUSE YOU WORE YOUR LUCKY T-SHIRT THAT SAYS "BORN TO BOOGIE" ON THE BACK. IF YOU FEEL LUCKY IN YOUR "BOOGIE" SHIRT YOU MAY HAVE MORE FUN WHILE GAMBLING AND BY RANDOM CHANCE ALONE YOU MAY WIN MORE SO I CERTAINLY WOULDN'T TELL YOU NOT TO WEAR IT. IF YOU FEEL BETTER ABOUT CROSSING UNCLE TO NIECE . . THEN GO FOR IT. THEY ARE YOUR DOGS.

IF YOU BREED COUSINS TOGETHER WHO ARE MUCH ALIKE AND THE CROSS WORKS AND THE PUPS ARE NOT ONLY OF EXCELLENT QUALITY BUT ALSO VERY MUCH LIKE BOTH PARENTS . . . THEN IT WORKED BECAUSE IT SERVED AS INBREEDING AND REDUCED THE AMOUNT OF GENETIC VARIATION. IF YOU BREED A SMALL, HOT-NOSED, GRITTY GYP TO HER LARGE, COLD-NOSED, COWARDLY . . LITTERMATE BROTHER AND THE PUPS ARE A LITTLE OF THIS AND A LITTLE OF THAT . . GUESS WHAT! IT WASN'T INBREEDING AT ALL REGARDLESS OF THE RELATION OF THE PARENTS.

IN THE PRACTICAL WORLD THERE IS NO SUCH THING AS LINE BREEDING. THAT'S JUST A TERM WE CAME UP WITH. YOU HAVE TO BEAR IN MIND YOU AREN'T BREEDING TWO WHOLE DOGS. YOU ARE BREEDING THOUSANDS OF INDIVIDUAL GENES FOR ANY GIVEN TRAIT OR CONDITION OR COMPOSITE. FOR EACH INDIVIDUAL PAIRING OF THOSE GENES . . ALL THAT MATTERS IS "ALIKE" OR "NOT ALIKE" . . . INBREEDING INCREASES THE LIKELIHOOD THAT ANY GIVEN PAIR OF GENES WILL BE ALIKE BECAUSE THEY CAME FROM THE SAME FAMILY AND ANCESTORS. SO FOR THE GENES RESPONSIBLE FOR DETERMINING TRACK SPEED . . YOU MAY BE INBREEDING . . BUT BETWEEN THE SAME TWO PARENTS . .  IN THE GENES RESPONSIBLE FOR DETERMINING COAT COLOR OR LEG LENGTH . . . IT MAY BE A TOTAL OUTCROSS WITH NO SIMILARITIES WHATSOEVER.

I PREFER TO BREED VERY, VERY TIGHT. BUT I JUST MADE A COMPLETE F1 OUTCROSS TO A TOTALLY DIFFERENT FAMILY OF DOGS.

THERE'S NO RIGHT OR WRONG . . . JUST PREFERENCE . . AND IN THE END . . NOTHING MATTERS BUT WHETHER YOU CHOSE THE RIGHT PUP OR NOT. SELECTION IS MORE IMPORTANT THAN ANY OTHER SINGLE ASPECT OF DOG BREEDING.

I'm not opposed to crunching on a dog or dogs in any of the aforementioned ways. And as has been previously stated the sorting of the offspring is the key to moving forward and improving your stock.

I've got a father x daughter breeding coming up in the next month. Once those offspring are sorted, I can still crunch even further if I need, or want.

IMO the most important aspect in linebreeding/inbreeding performance animals is the sort.

I totally disagree with this statement Barlow made:

AND ALMOST NOTHING HAPPENS BECAUSE YOU BRED TOO CLOSE OR TOO DISTANT, ETC. WHETHER YOU CHOOSE TO LINE BREED OR INBREED OR OUTCROSS . . . YOUR METHOD WILL NOT PREDICT THE OUTCOME.

You go and breed full brother and sister together for about 4-5 generations, then see if you make the same statement. Just use YOUR dogs for the experiment...not mine.....

Like I said . .

ALMOST NOTHING HAPPENS BECAUSE YOU BRED TOO CLOSE OR TOO DISTANT, ETC.

If you breed full brother to full sister for that long your dogs could degenerate in several ways. But I never said to do that. That in itself would be another example of breeding solely based on their relationships' to one another. Which is what I suggested that I would never do. Inbreed normal healthy dogs and cull the ones who are not normal or healthy.

And I wish I had a nickel for everything I've heard would be caused by close breeding. Small in size. Small litters. Sterility. Underbites. Bone problems. Bowlegged. Too much white, etc. There is nothing to prove that inbreeding causes any of those things. If you inbreed big dogs from large litters and select only the large offspring who produce large litters . . you'll keep getting the same. Once again . . selection is everything.

There have been lots and lots of experiments based on breeding brother to sister for multiple generations. All of them have proven the same thing conclusively. The inbreeding does no harm. Some plants only fertilize themselves . . which is the closest form of inbreeding . . and they have been reproducing themselves like this for thousands of years. But they are self culling and the weak do not survive to breed on. Problem is there are no lines of animals without some genetic problems and you end up isolating and exaggerating those faults.

Craig Clarke bred Plotts for thirty years with university funding and tested them on bears. He only culled/selected for physical health and grit. He bred brother to sister for seven generations and at that point he had some bear fighting machines. Unfortunately . . they were also very dog aggressive and emotional wrecks with all sorts of shyness issues. But they were normal sized and healthy with good conformation and tons of desire. He culled hard amongst them for offspring which would not fight the bears and at the end of his experiment he made mild out crosses to other branches of the same family and produced 100% bear fighters and drastically reduced the number of occurrences of the emotional problems. If from the beginning he had culled/selected for everything he wanted in a hunting dog he would have gotten many fewer examples to continue breeding . . but it only takes one male and one female. And if it had been a practical person trying to produce working dogs . . you wouldn't just breed brother to sister for that long. You'd select the best examples and breed them.

It isn't the inbreeding . . it is the genetic makeup of your foundation stock.

With any inbreeding . . as soon as it starts to get real tight . . you will produce lots of culls. But the ones who make the grade will become stronger, more disease resistant and far better reproducers of the traits you are selecting for. That is the point of inbreeding. To cull off the weak and unfit. If you inbreed or line breed for two generations and then out cross the next . . you just lost any progress you made in the two preceding generations. You let in more variation.

I don't see much there I don't agree with...The one thing I know about inbreeding is that we don't know all there is to know...

there  is  to  much  neg  fuss  made  over  inbreeding ......  i  never  breed   mother  to  son  or  father  to  daughter  for  no  other reason than its  just not  nice to  do ..... you  can have  the  same  problems close  line  breeding ....basically  you  can   double any physical  problems .....thats  what  you  want  to worry  about ........fella's  look  at  all the  rabbits  and  squirrels  an d animals  in the  woods .....how  close  bred  do  you  think  they  are ....

i  use  to  think  that  finished  out  dogs  wa s what  to look  at  for  breeding  prospects .....but  for  breeding  you  want  breeding  stock  that  is  naturals ..... the  kind  that  just  does  it  at  5  months  old ......THEY BREED  MORE  OF  THERE  OWN  KIND ......some  dogs  do  whatthey  do  caus e they have  been  trained  too ...... that  usually  makes  for  week  turnout  in  litters ..... puppies  only  know  whatthey are  born  with .....thats  where  you  see  how  your  breeding  is  working .....

Well I have to agree that culling and selection is a whole lot of it.  Inbreeding and line breeding is for a person  trying to capture the correct genes and traits he is looking for in that line of dogs  and to cull the unwanted genes and traits that are not wanted and to do this yes you have to cull hard because you keep doubling and tripling the same gene pools down the line if you do not cull and breed a cull this dog is loaded with unwanted genes and traits and can ruin whole lines of dogs when bred into them  this is what happens when people breed paper instead of good hard culled, hard lines of dogs . When inbreeding as spoken of up above you have to cull ruthlessly any undesired trait shows up you cull it right then and there and thats the way it should be if you are breeding this way if not then why are you breeding like this in the first place that tells me a person don't know what he is doing are has no understanding of inbreeding and hard core line breeding.

When inbreeding you also are more  liable to get genetic throwbacks to dogs six , seven , eight gens back in the pedigree.  I do know one thing you can inbreed like this for years and when you then decide to make a out cross you can make your first out cross and even that it says on paper the dogs are a fifty , fifty cross the dogs are not crossed at all because of the superiority of the inbred line of dogs gene pools it dominates the out cross because of it being so strong and you end up having to out cross two are three times before you even see a result of the first cross you put in there.

Knowing your line of dogs and the dogs that go back into their history  also is a big hand in this because when inbreeding and line breeding you will start to bring dogs from the back of the pedigree to the front of the pedigree because of the genes being so coagulated and it helps to know the dogs as far back and you can  .

I had a line of dogs that I experimented with and I inbred and hard line bred those dogs as hard as any in the country and culled hard and at one time I had seven liters on the ground at one time and all seven liters looked like identical twins same color same markings and if one liter got loose and got into another liters pen there is no way on earth you could have knew which pups went to which liter they were that closely bred .  Also while doing this I had a liter of pups on nite and the next morning I went out to check on them and got the biggest surprise of my life right there in the middle of all these genetically same pups was a dog I have never ever seen one like .  This dog shocked me so bad I had second thoughts on what it was I thought maybe something got to my gyp but no way she was locked down in a kennel the whole time from heat cycle till the birth of the pups so then I got to researching and put out the word to Buddy's to try and help me find out what this was well Finlay I got a letter from a breeder in Europe and he was about to crap his pants he said man what that dog is , is a genetic throwback to the ancient dogs of around the late 1700's and early 1800's he said it was a genetic throwback to the Blue Phal fighting dogs of nearly 200 years ago and he then send me a hand painting picture of the ancient Blue Phal fighting dog for the late 1700's and this dog was the exact replica of those dogs I had folks from all over the world trying to buy that pup and young dog when the word got out .   But as luck would have it the dog was healthy as could be and then one day at about 8 months old locked down in a concrete kennel I walked out side one morning to feed and the dog was laying there dead as a door nail and for no apparent reason he just died out of the blue I still don't know what happen to  him he just fell over dead and I tried and tired for many years to reproduce a dog like that again from that very same line of dogs and till this day never have.

TexasHogDogs

There are profound spontaneus mutations. For a good object lesson in this, study the history of the albino dobermans. They are a whole different critter, and it started with a single dog. But these type of radical phenotype shifting spontaneous mutations are the exception... not the rule.

More often than not, these types of throw-backs are the result of nothing new, the genetics to produce these dogs have been hiding in the background (or pedigree if that makes more sense) for generations.

If you're a serious student of animal husbandry it's important to understand why this happens. More often than not, the mode of inheritence for these "hidden" or "throw-back" traits are very complex. They can involve some or all of the following: polygenic, threashold and modifier genetics, some or all of which are subject to varying levels of penetrance.

If you're not a student of breeding/genetics and those terms seem unfamiliar, don't worry about it too much. The point is that reproducing that dog would be pretty hard, unless you bred him back into that same line multiple times, and even then, you likely wouldn't get very many, but atleast you'd get a few.

More often than not, these types of throw-backs are the result of nothing new, the genetics to produce these dogs have been hiding in the background (or pedigree if that makes more sense) for generations.


Thats the whole truth of it right there.  I have seen folks say "it will never happen"  I have learned to not say that  when it comes to breeding dogs.  I'm a firm believer if it comes out in a breeding then it was in that dogs genetic pool and  heritage some were before there is no mystery to it,   if it comes out it was there before somewere maybe many , many gens back.

THD

I still say if you inbreed too tightly you are asking for problems. Read what Barlow wrote about the Plott guy that did.

"He bred brother to sister for seven generations and at that point he had some bear fighting machines. Unfortunately . . they were also very dog aggressive and emotional wrecks with all sorts of shyness issues."

I don't want any emotional wrecks for hog dogs....

If you keep inbreeding you are increasing the chance of doubling up on good genes and bad. Eventually bad genes that are recessive will show up in your dogs as a phenotype and not just a genotype. 

I believe in linebreeding, but you can look at any breed of cattle, horses, sheep, and even dogs, and NO ONE that has been breeding for long and is successful is a proponent of inbreeding. The only way most inbreed is if they have no choice to carry on the line, then they outcross to dilute the genes again.

There is a definate difference between LINEbreeding and INbreeding.

I heard a saying once from a oldtimer "double the goodness, triple the trash"

not wanting an argument .....but  how  can  anyone  explain the  wild  animals  and  how  they  have  survived breeding  each  other  for  hundreds  of  years ....can  you  imagine  how inbred  rabbits  and  squirrels  are ....... a  common  barn  full  of  rats  has  to  be  inbred  hundreds  of  times ...... its  when  you  have  bad  traits a nd  bad  physical problems  they  can  get  worse ......and  i  like  i  have  heard  before  if  you  raise  enuff  chickens  you  have  one  born  without  feathers ..... you  can  get  bad  litter   with a  total outcross .....


my  old  blackie  dog  is  my  JR  dogs great grandpa twice on his momma's side and  blackie  is  also  his  daddy .....

jr  looks  just  like  blackie  more  than any  dog  i  have  ever  had since  blackie ....acts  like  blackie and  hunts  alot  like  blackie .....JR's pups  looks  alot  like  blackie and there  is  some  doing  real  well  around the  country .....i'll  stick  with the  linebreeding  myself .....

Inbreeding does not cause the problem... problems in the genetic material cause the problem.  As stated before, family status doesn't dictate genetic relationship.   I can breed a brother/sister who would have less of a genetic relationship than uncle/niece.  It is about how the genes line up..You are not just breeding the two dogs in front of you, you are breeding their genetic possibilities. This is not my opinion, this has been proven with science for years..  Even if you try to only breed the dogs that genetically were the most similar, it will be their genes that cause issues, if there are issues, not the act of inbreeding..

The blue hill people in Kentucy are inbred, this is true, however, they are blue because they have a genetic fault in their family genes (which only show up in a few).  They are not blue because the fool around with their relatives..

Parker,

   I am not sure how rabbits and barn rats handle inbreeding, but a number of animals horses for example will push out the young males as they mature. This keeps the sons from breeding their moms, aunts, half sisters, etc.  Now the strongest one may challenge the stud of another band, or within the same band it was born into, which would allow limited inbreeding, but at the same time only allows the strongest to procreate within its band.
 
   I think it has been stated plenty of times, but the only ones that successfully reproduce without getting trapped are the ones that cull, and cull hard. Just like mother nature does.

I still say if you inbreed too tightly you are asking for problems. Read what Barlow wrote about the Plott guy that did.


I agree with you and yes this should be the point to were you stop at this point you are tearing down the very line you have produced because you have now bred so far into the line that the line has noting else to give except the unwanted !!!!!!!!!


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Inbreeding does not cause the problem... problems in the genetic material cause the problem.

When the "breeder" inbreeds it may not cause the direct problem at first ,  its when the breeder dont know when to stop.  I sure think when you inbreed you yourself the breeder is  contrubiting to the problem because you are doubling and tripleing the same genes over and over so therefore you are asking for problems the futher you go with it .  We are not dealing with  wild animals that are  in the wild,  we are the breeders of a product so we control what we do so its us that contrubute to the problem at hand.  I dont understand why anyone would want to just keep inbreeding and inbreeding at one point are another you are going to come to the finished product which should be the goal in the first place atleast the way I think anyway may not be right with some folks but thats my ideal anyway.

Mr Parker said
 "its  when  you  have  bad  traits a nd  bad  physical problems  they  can  get  worse "

Great point !


Over the years I  have been ask hundreds of times how do you know when it is time to outcross your line after you have inbred and line bred it so much .

My anwser has always been.  I let mother nauter tell me when it is time to outcross .  Next question from them is well how do you know when she is telling you to outcross .  Its simple when you start getting liters  that a lacking and you start loosing things such as wind , abulity , speed , staminia , size and all the things the line is known for that is when mother nature is telling you hey man you have gone far enought .   Why would a person want to go anoy  futher there is no logical explenation other than he are she just wants to  and I say it is a waste of time after this happens you are  hurting the line of dogs and there is no use going any futher .  The line itself is telling you hey man this is enough you have trap all the good genes you are going to trap so why inbreed any more when you have gotton to the point to were you have done all you can do as far as traping the genes you have wanted to trap now you are going to far and starting to trap the unwanted genes  that tears a line of good dogs apart !

There is such a thing as a end product when this starts to happen that is the end product of inbreeding and hard core line breeding .   Wouldnt you think if you think not I would love to h ere why you think not .

TexasHogDogs

Typically one inbreeds because he wants a faster way to an end.  His goal is to cull all of the bad genetic material out of his line.  I have no idea how far people want to go with it, I am just telling you why people have done it in the past.  You seem to think if you go to far you will get bad genetic offspring.  Well, in reality you have not fixed the genes and your line will have those traits in it forever. 

Oh, and no matter how much I hear it, it is still as false as always.  When seed and egg meet the offspring is always 50/50....Always...All the superior genes of the inbred dogs can do is contribute 50%...I am 50% my father and 50% my mother...I have 46 chromosomes.  23 from my mother and 23 my father.

A dog has 78 chromosomes.  39 from 1 parent and 39 from the other parent.  Now, if those dogs are linebred/inbred many of the chromosomes on both sides will be comon as this type of breeding narrows the field of possibilities.

I am not trying to offend anyone, but I have taken genetics classes from mendel's peas all the way up to cloning, and have read everything I can find on dog breeding, no where have I ever heard or read that one speciman can contribute more genetic material than its mate.  This is an "Old Wives" Tale.

Genes are Dominent or recessive...it is true that one mate could have more of the recessive/dominance genes than the other.  This would make one think that one parent had contributed more/less to the whelping..

A wise Race horse trainer and dog man I know said this:

If you want faster, fitter, smarter and sounder horses, take them to africa where the fastest and toughest lions live. Turn em all out loose, then go back in a few years. Those ,if any are left, you may have what you are looking for.
We'll the hogs in this country obviously aint in africa, but it's all but the same thing in this evolution of hog I have seen. The fast, strong, smart and determined are surviving to reproduce like kinds and dogs?? We'll In my opinion by a long  shot,  the average hunting dog across the country is going down hill.  Folks have sure agrued that point numberous times on internet boards and such. some think average hunting dogs are better today, some think worse, guess it depends on your  opinion orexperience or perception of it all, or maybe your motive....