Hane-hønesøskende

[Tanja S.B.]

Der har været meget godt artikelserie om arvlighedslære af Flemming Schiøtte i den grønneblad det kan Downloades i:
http://hadstenfjer.dk/index.php?option=com_jotloader&view=categories&cid=0_9c2f8d5f0b792967dc0cf192d81413e0&Itemid=160
Du kan også google"Mendels lov"

Tak for link! Sikke fint, at man lige kan downloade alle artiklerne med et enkelt klik

[Rudy]

Ja, det er nogle rigtig gode artikler omkring avl, som var i Det Grønne Blad for efterhånden mange år siden.   Dem har jeg haft meget glæde af i årenes løb

[Susanne]

In our most recent Breeder’s Directory, Christine Willard wrote an article entitled "Small Flock Breeding." This article summarized two previous articles on the subject, one by Craig Russell, the other by Dick Demasky; plus, it added information on breeding out-and-out. For those of us involved in preservation the rolling-mating system as advocated by Russell and the clan-mating system as advocated by Demansky are basic. However, there are still other systems that can be utilized by the preservationist in strategic ways.
My personal research in breeding has led me to begin gathering and collecting articles and books by cockfighters (cockers) of long ago; these men of the past preserved several different breeds of chickens for hundreds possibly even thousands of years. During that time they maintained type and vigor to an unparallel degree. It is my belief that their methods of breeding should be examined in detail to be utilized by the modern preservationist. Let me add, however, that this article is not an endorsement or defense of cockfighting; neither will I belie them in any manner. Instead, it is a heartfelt acknowledgement to men who perfected the art of breeding chickens. Further, I believe the modern preservationist can learn much more from the breeding techniques of cockers than he/she can from textbooks on commercial poultry breeding. (Note* It should go without saying that at all times you must select for vigor and type regardless of the breeding system utilized. Cocker Tan Bark states, "Good breeding is only a matter of intelligent selection of brood fowl…."
What the ole time cockers strove for was prepotency. They desired to be able to predict with reasonable accuracy the outcome of any particular mating. For this reason, no cocker worth his salt would have consistently used the out-and-out system. Granted, at times they did cross, but very carefully. Their records consistently indicate that when they did cross they did so using the same strain of fowl they were hoping to improve. Of course, they were looking for gameness, but using their methods a breeder can breed for type, fertility, egg production, etc.
The system I would introduce was utilized by William Morgan, of Morgan Whitehackle fame, and some of the English cockers. It is a form of breeding known as "3 times in and once out." This system was used to produce, in cockers’ terms, a "pure strain." The following chart will explain how the system works.

First Generation Hen Cock
½ hen ½ cock

Second Generation
Hen to son
Cock to daughter ¾ hen ¾ cock

Third Generation
Hen to grandson
Cock to granddaughter 7/8 hen 7/8 cock

Fourth Generation
Hen to ggrandson
Cock to ggranddaughter 15/16 hen 15/16 cock

Now in the 5th generation you breed the 15/16 hen to the 15/16 cock. Then, choosing the best hen(s) and cock(s) you begin again. C. A. Finsterbusch recommends the same breeding strategy in his famous book Cockfighting All Over the Word page 152—153. If they chose to continue line breeding these fowl were what they termed "seed stock." Seed stock was never pitted. Instead, they were crossed to a different strain to produce their "battle cocks." Battle cocks were never used in breeding pens if this system were employed. Or, at this point you choose the three to five best hens and begin the clan mating system.
Alva Campbell who created the "Campbell Blue Boones" during the early years of the twentieth century line bred his outstanding pullets to one cock, "Daniel Boone," for eleven straight years. D. H. Pierce claimed his "Wisconsin Red Shufflers" were line bred for 35 years with no loss of vigor or gameness.
How did these men accomplish this when so many modern textbooks on poultry genetics maintain this is impossible to do? I have discovered several key answers. First, "an inbreeder must breed only from his most vigorous… specimens." Second, they culled ruthlessly. Third, in any form of line breeding the youthfulness of the stock used cannot be overstated. Fourth, they often carried on the same mating (One cock to one hen) for four or five years. Thus, in twenty years it was possible to have only produced four or five distinct generations. When cockers happened upon a cock and hen that produced winners in the pit, then they mated these two year after year. Fifth, they kept accurate records of every mating and often practiced single matings. Sixth, they only attempted close inbreeding on free range giving the birds every advantage of producing constitutional soundness and vitality. These six keys allowed the cockers to be greatly successful at the art of breeding game fowl centuries before the advent of modern genetics.
Many cockers practiced variations of the rolling-matings and clan-matings systems. When practicing the rolling-matings they would often include side matings of line breeding. When using the clan system the large breeders often kept five to seven clans. (They called them "yards.") With the clan matings they most often used the matriarchal system as advocated by Dick Demansky. At times they would create "new" clans or yards of full sisters when a particular hen within the clan produced exceptional sons. Thus, this one hen became prepotent in the new yard through her daughters.
Like those of traditional farmers, for whom poultry was an important part of the subsistence, the methods of cockers have often been disparaged by modern experts. But for serious preservationists and small flock owners in general their tried and true methods are among the surest ways to turn simple reproduction into serious breeding and systematic flock improvement.
One of the truly wonderful things about raising chickens is that you the breeder can choose your own system of breeding to create your "own strain." Yes, you can even experiment! Regardless of how you personally feel about the sport of cockfighting, these men of a by gone era have much to teach us. So, why not learn from the original preservationist: cockers?

Mange tusind tak, Thorleif. Nu ved jeg, hvad jeg skal nærlæse i aften

[thorleif]

Mange tusind tak, Thorleif. Nu ved jeg, hvad jeg skal nærlæse i aften

Og hvis du mangler laesestof derefter, saa kan du jo laese den her:
http://openlibrary.org/books/OL24666142M/Wright's_book_of_poultry
Klik paa "PDF", den tager lidt tid, da den er saa stor.

[Berit Linea]

Tusind tusind tak  . Jeg skal vist også lige have en rolig aften, og så skal der læses og grifles  . Jeg er da glad for at så mange kom med info. Hvor er det her bare et skønt forum 

[FC-Søvind]

For at ta emnet om arvelighedslære vs. hvidt tamfjerkræ op igen, som jeg finder utroligt interessant og har en umådelig lyst til at studere nærm. er jeg stødt på 1 mill. kr spørgsmålet.
Flemming Schiøtte artikkel om Phæo-og Eumelanin, her specielt aktuelt vedr. brun-sort kontra hvidt som blot er luftfyldte fjer.
Helt grundlæggende, hvordan får man startet på at få mindsket/fjernet Eumelanin farvestoffet fra fjer.?
Synes ikke jeg pt. kan finde noget stof i lærebøgerne.
Håber eksperterne vil bidrage med gode input.

PS. til Thorleif. Llyfr da, diolch. Yr oeddawn yn darllen yn hwyr yn nos.
 

[thorleif]

Diolch an fawr, croeso (i bawb) y Cymru!

[FC-Søvind]

Diolch an fawr, croeso (i bawb) y Cymru!

Ha ha... cyfieithdd iaith google.

[Marianne Vedel]

De fleste bøger er da gode at læse om aftenen.

[Tapani]

Helt grundlæggende, hvordan får man startet på at få mindsket/fjernet Eumelanin farvestoffet fra fjer.?

Pas og jeg  kan ikke ens sige en god bog om det.
@ Torleif har Wrigt noget om emnet?

Er der nogen som har brugt  "høns Kalkulator" http://kippenjungle.nl/kruising.html

[thorleif]

Pas og jeg  kan ikke ens sige en god bog om det.
@ Torleif har Wrigt noget om emnet?

Er der nogen som har brugt  "høns Kalkulator" http://kippenjungle.nl/kruising.html

Jeg ved ikke, trolig ikke. Pigments forskning er vel af lidt nyere dato?

[FC-Søvind]

De fleste bøger er da gode at læse om aftenen.

Nemlig, men kun de gode af slagsen.

[Berit Linea]

PS. til Thorleif. Llyfr da, diolch. Yr oeddawn yn darllen yn hwyr yn nos.
 
Hva dælen er det lige ? Kun mig som er uvidende/ nysgerrig ? 


[/quote]

[thorleif]

Walisisk (Celtic).

[FC-Søvind]

PS. til Thorleif. Llyfr da, diolch. Yr oeddawn yn darllen yn hwyr yn nos.
 
Hva dælen er det lige ? Kun mig som er uvidende/ nysgerrig ? 

Walisisk..?  Nej det er en sønderjydsk dialekt he he... Det var spøg.