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TOPIC: Breeding & Genetic Terminology

Breeding & Genetic Terminology 5 years 6 months ago #1272

  • Electrichicken's Avatar
  • Electrichicken
I have seen F1 in association with birds, what does it mean?
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Re: Breeding & Genetic Terminology 5 years 6 months ago #1273


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F1 mating is original mating. F1 offsprings are the babies resulting this mating. F2 babiees are the results of mating F1 babies to each other. You may also here the term BC1. This is a backcross mating. BC1 babies are the result of mating the F1 or F2 back to the original birds you started the mating with. At least that is how I understand it. The F1 and 2 and 3 etc. refurr the generations since the original mating.
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Re: Breeding & Genetic Terminology 5 years 6 months ago #1275


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That is right. F matings are all direct inbreeding. BC matings are linebreeding if the parent birds are used. Linebreeding is not as detrimental to reproduction and vigor as direct inbreeding. The problem is that when trying to make new varieties direct inbreeding is the only way to set traits, unless you start two or more lines of the same cross, and use line crossing instead. T Shelton
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Re: Breeding & Genetic Terminology 5 years 6 months ago #1276


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Thanks Tim. Couldn't find the right words to explain thouroughly but you summed it up well. F represent inbreeding and the number behind it represents the generation 1st, 2nd, 3rd generation etc. Breeder selection is critical when applying this especially in the BC matings. Obviously you made the mating for improvements and the original stock had faults. We are tought to breed away from the fault but by going back to the original stock you are not only fixing in their good traits, you are also going back towards the very faults you are trying to get away from. So you see the offsprings you choose for the backcross are critical. JUst my way of thinking anyway.
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Re: Breeding & Genetic Terminology 5 years 6 months ago #1277

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That definitely clears that up, thanks. Hopefully someone else will have a question or comments to add.
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Breeding & Genetic Terminology 5 years 6 months ago #1287


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  • Del's Avatar
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Dang, I always heard if they come out good that's line breeding and if they turn out bad that's inbreeding......lol
Raising and Exhibiting BB Red Male Line, BTB Male Line.
Joshua 24:15 ... But as for me and my house we will serve the LORD !
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Re: Breeding & Genetic Terminology 5 years 2 months ago #3393


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"F 1" means First mating.
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