how heritable are specific traits in chickens?

[WarrenHound]

i posted in the wrong spot and so the mods wont have to clean i am posting this instead.

in cattle life expectancy is 14%
milk production is 25 or 45 can't recall and comes from the bulls dam.

what is the inheritance percent of egg production, and life expectancy? and egg production life?

by the last i mean the duration of time they lay eggs.

we all know that its nature and nurture/environment that can make to break these traits.

what is the heredity of broodiness? since some breeds are highly broody if crossed with a non broody breed how likely would it be that it would produce a bird exceptionally prone to broodiness?

feel free to add any other fun traits ;p

 

[tadkerson]

go to google scholar and search manuscripts to find the information.

 

[Henk69]

How do you apply these percentages?

If milk production is sexlinked then both sire and dam have equal influence.

I don't think that the industry is bothered by egg production life that much...

 

[WarrenHound]

at the moment i am having a brain fart but that is exactly how they do it. percents .
the milk production is similar to what you see in deer with antlers the female determines the rack her son could develop not the male if they had a doe then the gene for antlers from her father would be passed on to her son.
.

and the industry may not be but i found it curious none the less also Tad: went to google scholar and could not find it.

also links that might help

http://pubs.ext.vt.edu/404/404-084/404-084.html
http://www.hanoverian.com/ludwigherit.html

 

[capayvalleychick]

I would like to know the heritability of defects. Which of the defects, that are DQs, can be bred out over time? And which defects are so dominant that they will remain in a strain?

I need this information in my breeding project. I'm focusing just on size & type right now. But I don't want to breed birds with defects that can not be bred out in the future.

Broodiness is something that I would like to have in my flock, so that's an interesting question. I thought that I had the answer, years ago, when I had chickens of mixed breeds. At that time, I would see the broody trait show up in the second generation. Now that I have standard breeds, I'm not seeing the same result. Few are broody and the trait is not showing up at all in the subsequent generations.

Kim

 

[tadkerson]

No, I suggested you go to google scholar and find the information.

Tim

 

[WarrenHound]

No, I suggested you go to google scholar and find the information.

Tim

Quote:
isn't that what i just said....i went to google scholar and could not find it which is why i asked on a forum that is set up for asking just such questions.thanks.

capayvalleychick: i think from what i have read in my textbooks it is believed to be a polygenic with sex linked affected traits and more than one independent autosomal gene but i cannot recall if it was proven as there were conflicting reports in the lab findings in the book. (talking about broodiness) the fact that some breeds are far more broody than others proves it to be genetic but as we know with the right conditions even the most non broody breeds can go broody.

 

[3riverschick]

isn't that what i just said....i went to google scholar and could not find it which is why i asked on a forum that is set up for asking just such questions.thanks.

capayvalleychick: i think from what i have read in my textbooks it is believed to be a polygenic with sex linked affected traits and more than one independent autosomal gene but i cannot recall if it was proven as there were conflicting reports in the lab findings in the book. (talking about broodiness) the fact that some breeds are far more broody than others proves it to be genetic but as we know with the right conditions even the most non broody breeds can go broody.

You need to go to google book instead.

Try Davenport's book ,"
=========================
Inheritance in poultry
books.google.com
Charles Benedict Davenport - 1906 - 136 pages - Free Google eBook - Read
INHERITANCE IN POULTRY. By CB Davenport. Evolution proceeds by steps.
These steps are measured by the characteristics of ... The present work
is a first study of the method of inheritance of characteristics.
http://tinyurl.com/c8l9lz5
=====and 1909, same author, same subject:
Inheritance of characteristics in domestic fowl - Page 99
books.google.com
Charles Benedict Davenport - 1909 - 100 pages - Free Google eBook - Read
Davenport, CB 1906. Inheritance in Poultry. Carnegie Institution of
Washington Publication No. 52 (Papers of the Station for Experimental
Evolution, No. 7), v+ 136 pp., 17 plates. 1907. Heredity and Mendel's Law.
http://tinyurl.com/cx4eut5
=======================
Sex-linked inheritance in poultry
books.google.com
Thomas Hunt Morgan, Hubert Dana Goodale - 1912 - 21 pages - Free Google eBook -
http://tinyurl.com/cnwmhqq
================================
(This is a new one I haven't seen before)
Further data on the inheritance of blue in poultry
books.google.com
William Adams Lippincott - 1918 - Free Google eBook - Read

The Case of the Blue Andalusian
By William A. Lippincott Page 95
( this seems to be a thesis by whom, I am not sure...
hard to read their handwritten script.)
Further data on the inheritance of blue in poultry
William Adams Lippincott Page 289
http://tinyurl.com/bm269xc


========================================
Poultry Science
Archive of All Online Issues
January 1908 - Present
keyword searchable (127 hits on "broodiness")
http://ps.fass.org/content/by/year
============================
Best,
Karen in western PA

 

[3riverschick]

at the moment i am having a brain fart but that is exactly how they do it. percents .
the milk production is similar to what you see in deer with antlers the female determines the rack her son could develop not the male if they had a doe then the gene for antlers from her father would be passed on to her son.
.
=====================
research article

Improved egg size: High heritability of egg weight gives rapid response to selective breeding
authors

I. Michael Lerner, University of Caliornia College of Agriculture
publication information

California Agriculture 4(12):6-6. DOI: 10.3733/ca.v004n12p6. December 1950.

http://californiaagriculture.ucanr.org/landingpage.cfm?article=ca.v004n12p6&fulltext=yes
================================
research article
Breeding programs: Meaning and significance of heritability in improvement of strains through genetics
authors
Everett R. Dempster, Agricultural Experiment Station, Berkeley
publication information
California Agriculture 4(2):12-16. DOI: 10.3733/ca.v004n02p12. February 1950.
http://californiaagriculture.ucanr.org/landingpage.cfm?article=ca.v004n02p12&abstract=yes
============================
Powerpoint online seminar ( addresses genetics of broodiness)
Traits of Economic Importance In Poultry And
Its Implication In Genetic Improvement Programme
http://www.scribd.com/doc/48643480/Economic-Traits-of-Poultry
=====================================
Poultry Science
Archive of All Online Issues
January 1908 - Present
keyword searchable (127 hits on "broodiness")
http://ps.fass.org/content/by/year
==================================
(This is a new one I haven't seen before)
Further data on the inheritance of blue in poultry
books.google.com
William Adams Lippincott - 1918 - Free Google eBook - Read

The Case of the Blue Andalusian
By William A. Lippincott Page 95
( this seems to be a thesis by whom, I am not sure...
hard to read their handwritten script.)
Further data on the inheritance of blue in poultry
William Adams Lippincott Page 289
http://tinyurl.com/bm269xc
=================================

 

[Oregon Blues]

........... Which of the defects, that are DQs, can be bred out over time? And which defects are so dominant that they will remain in a strain?................

Dominant defects are quite easy to get rid of. If it is a dominant gene, you can see it manifest itself. Don't breed any birds that have that defect and you will not get that defect in any offspring.

Recessives are the traits that remain for generation after generation. You can't see them and don't know when they are lurking and waiting for a chance to appear.

All and any defects can be bred out. if it is a recessive, you do test breedings to see if the parents are carriers. Some defects have genetic markers (for some species) and can be detected with blood testing.