Line-breeding and in-breeding thoughts & reasons
 
 

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Line-breeding and in-breeding thoughts & reasons

This is a discussion on Line-breeding and in-breeding thoughts & reasons within the Horse Breeding forums, part of the Horse Breeds, Breeding, and Genetics category
  • Race horses linebreeding to preserve traits
  • Abraham line breeding

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    09-16-2013, 11:09 AM
  #1
Foal
Line-breeding and in-breeding thoughts & reasons

Pretty self-explanatory.

I've never even considered the thought of purposely breeding the sire and daughter together, or grandsire with granddaughter, but it obviously happens.

My question is what are your thoughts? Would you choose this, or choose to breed with a completely unrelated horse for desireable qualities, etc? And reasons why as well please.
     
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    09-16-2013, 12:51 PM
  #2
Started
I don't like in-breeding, but line-breeding is a delicate thing. I believe that only professionals who know what they are doing should be line-breeding because you have to decide what quality you are trying to preserve, why you want to preserve, how you can successfully preserve that quality, and which horses will be the best cross that will not only keep the quality but add more to the resulting foal. I've seen several line-bred horses come out well in the show pen and breeding shed. It's about knowing what you want and sticking to it. It's not for every breeder.
     
    09-17-2013, 08:12 AM
  #3
Trained
Linebreeding and inbreeding are common and useful practices in breeding animals.
If you want to ensure the offspring inherit the good qualities of the dam and sire the best way to get the results you desire is inbreeding.
I own several mares that are the result of their dams being bred back to their own sires. These mares are correct and most importantly pass on the qualities I desire in their offspring.
I purchased the half sister to my stallion solely becuase of the foals the two have produced. She is the only mare I purchased to cross with my stallion who by the way is related to everyone of my mares either through Bask or The Minstrel.
All pure bred animals are inbred. It is used to set type .
The closer related a stallion is to the mare the more careful one must be when choosing to breed. Shalom
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    09-17-2013, 08:47 AM
  #4
Cat
Green Broke
Its used to "lock in" a highly desirable trait or set of traits. It should only be done by someone who knows what they are doing and are extremely familiar with the lines they are working with. It can result in an outstanding horse/animal that can then be outcrossed to another line for the next generation, or produce a horrible mess. It is a sure way to bring out any hidden recessives if there are any lurking in the lines and can emphasize any weaknesses just as easily as any strengths.
     
    09-19-2013, 04:05 PM
  #5
Trained
Ok, inbreeding, taboo in the human race because of the possibility of less desirable traits being thrown, and the severe possibility of doubling down on genetic disorders. Our ancient ancestors worked this out quite quickly I think. My husband came from one of a group of small islands off of the North of Scotland, and raids to find new women have been going on forever. At the same time there is an upside, you can magnify any good traits, you have a chance of improving the desirable. In the human world we are against such experimentation, because the poor folk who are born carrying the negative traits are too big a price to pay for the chance of positives. Besides there is no breed standard for people.

For the animal world though, it is how new breeds start, you have one desirable animal with the traits you want, then you start inbreeding with close relatives who have those traits, and once you have offspring, then you can breed them back to the parents. Lets stay with the cattle world, in that case the ones that carry the right traits will be bred, the failures either die, or we let them grow then eat them! It is not a venture for the faint of heart, or those without a depth of knowledge of what they are trying to achieve, the risks involved, and the possible costs, emotional, financial, and on the health of the animals. It is a high risk game for all involved.

Line breeding is far more wide spread, but again should be approached with a little caution, and a whole bunch of knowledge. My beautiful Arab, has Bask and Serafix many many times in her pedigree, no inbreeding, but line bred so she has many common ancestors. They certainly produced a mare of great beauty, and she has no health issues, so either she is lucky, or people have cared enough to do their homework and make sure that they made good choices.
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    09-19-2013, 04:13 PM
  #6
Yearling
Quote:
Originally Posted by dbarabians    
Linebreeding and inbreeding are common and useful practices in breeding animals.
If you want to ensure the offspring inherit the good qualities of the dam and sire the best way to get the results you desire is inbreeding.
I own several mares that are the result of their dams being bred back to their own sires. These mares are correct and most importantly pass on the qualities I desire in their offspring.
I purchased the half sister to my stallion solely becuase of the foals the two have produced. She is the only mare I purchased to cross with my stallion who by the way is related to everyone of my mares either through Bask or The Minstrel.
All pure bred animals are inbred. It is used to set type .
The closer related a stallion is to the mare the more careful one must be when choosing to breed. Shalom
No, all pure bred animals ARE NOT inbred, they may be line bred, but they are not inbred.

Your chances of having a physically and/or mentally deformed offspring as a result of breeding within 2 or 3 generations is substantially higher when inbreeding. As opposed to breeding for desired traits to present in another 4+ generations removed. This is a scientifically proven and published fact, not something made up.

Yes, if you breed a dam to her sire, you MIGHT get what you want. But you are more likely to get a foal that is of no use to anyone. That's fairly irresponsible in my book, especially considering the amount of poor quality horses there are now as a result of poor breeding practices....
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    09-19-2013, 04:36 PM
  #7
Trained
Quote:
Originally Posted by busysmurf    
No, all pure bred animals ARE NOT inbred, they may be line bred, but they are not inbred.
To be 100% fair they probably WERE inbred in the first generation or two, when there is a huge failure rate, while people try and develop a new breed. As time goes on and the gene pool increases then a wider breeding pool is used. It's kind of like saying that humans are inbred because we all descend from Adam and Eve, who if I remember only had two sons. Well anyway, you get the idea, we are either descended from monkeys, or we are inbred
     
    09-19-2013, 04:42 PM
  #8
Green Broke
I am not a breeding guru. At all.

But I am extremely turned off by a horse that has the same name several times in its pedigree. If I am looking to buy a horse, I will often cross that horse out of my list of potentials. Call me uneducated, but it doesn't seem right to me for breeding close relations.

This thought has always striked me as interesting. What if Tina Charles and Michael Jordan got together to produce the ultimate basketball champion? And then that daughter got with her dad, and then their son got with their mom, to produce more? Disgusting right? But its okay when we do it with horses..... Just food for thought.
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    09-19-2013, 04:52 PM
  #9
Yearling
I have a 4 month old colt that is the result of daughter being bred to her father (I didn't do it, I got her 1 month before she foaled). Everyone says this could be an OK thing or a bad thing.

So far the colt seems smart, what do look for in "in breeding" as opposed to line breeding? Does that make sense?
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    09-19-2013, 04:58 PM
  #10
Trained
All purebred animals are very closely related they have to be to have the same traits.
All morgans descended from 1 horse all TBs from 3 arabian stallions, Haflinger are all related to one horse etc.
I want a animal that is line or inbred for breeding purposes. It is the most sure way of getting the traits you want.
Now I would never breed full siblings or like a certain reserve halter world champion have every single line but one going to Impressive.
If I breed a filly to her sire I wont breed her foal to its half sibling. I want some outcross in the equation to have some different genetics to work with.
As far as humans all Jews are related to one mans twelve sons who married each others sisters and daughters.
Abraham married his sister, their son married his mothers niece, their son married two of his mothers nieces.
Moses's father married his own aunt.
These were people chosen by G-D. Shalom
     

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