Thomas' Dexters
   
  [ Home Page ] [ Dexters ] [ Kids & Kows" - Our Lifelong Commitment ] [ Female Stars in our Herd ] [ More About Dexter Cattle ] [ Breeding Colors & White in Dexters ] [ DNA Testing ] [ Breeding/Reproduction - Condition W/Score Chart ] [ CHONDRODYSLPASIA ] [ Horn Examples & Polled Info. ] [ PHA- Pulmonary Hypoplasia w/Anasarca ] [ Registration - Tattooing - Cattle Diseases ] [ Worming & Fly Control ] [ POLLED History & English APPENDIX explained ] [ DEXTER HALTERS ] [ DEXTERS FOR SALE-Thomas' ] [ Dexter Semen Available -Thomas' ] [ Older Dexter Females ] [ Our Dexter TWINS & TRIPLETS ] [ Briarwood Blaze O'Glory #10329 - Progeny ] [ Thomas' Magic Pride -Sire - Dam - Progeny ] [ Lane End Lucifer's Wizard #3556 ] [ Thomas' Prides Red Baron #4882 Progeny ] [ Herd Sires @ Thomas' 1976-2013 ] [ Finding & Choosing Dexters ] [ Dexter BEEF ] [ A.I. Bulls ] [ HISTORICAL DEXTER BULLS ] [ American Min. Cattle Reg - Pacheco/ "Wee Gaelic" ] [ English Shepherd Dogs ] [ Thomas' Char-Gin Boston, (aka "Boss") ] [ Beebe's ToSa Maggie ] [ ES PUPPIES! ] [ Arkwright-Thomas' Nanny McPhee ] [ Thomas' ES X RC Farm Dogs ] [ Contact Us ] [ Links ]

Dexter Color Brief                                          

Dexters are recognized in 3 solid colors: Black, Red and Dun

Two unrelated pairs of genes located on separate chromosomes control the 3 colors.    
                                                Black & Red are one pair

Dexters have 2 red genes, E+ and e. (The 2 reds dont appear different in appearance but are identifiable through DNA testing for color.) 

Both E+ red and e red are recessive to black so every red Dexter carries 2 red genes. A pair of red Dexter parents will only produce a red offspring even if both parents carry a hidden dun gene.                                                 

Black & Dun are the other pair

A brown mutation is responsible for the dun color. Dun is recessive to black, so every dun colored Dexter carries 2 dun genes.

Breeding 2 Black Dexters

 Black Dexters can carry red & dun genes and if so may produce Black, Red or Dun offspring when bred to a bull w/1 or both of the colored genes

A Black

A Red if both carry a Red gene. 

Dun if both carry a Dun gene
 

Breeding 2 Red Dexters

2 Red Dexter parents can only produce Red only

  Red is the only Dexter color that will breed true.
 

Breeding a Red Dexter (w/dun gene) to a Black or Dun

Can produce a Black, a red or a dun
 
         Breeding 2 Dun Dexters

2 Dun Dexter's can produce Dun or Red offspring

A Dun if bred to a Dun may produce a Dun offspring

Dun (w/Red gene) bred to a Dun (w/Red gene) can produce a Red or a Dun offspring

 Breeding a Dun Dexter to a Redor Black Dexter

A Dun Dexter can produce a Black, Red or Dun offspring:   

A Dun  (w/o a Red gene) bred to a Red Dexter (w/o a dun gene) will only produce a Black calf

A Dun  (w/Red gene) bred to a Red (w/o a Dun gene) will produce Black or Red offspring 

A Dun (w/o Red gene) bred to a Red (w/Dun gene) can produce a Dun or a Black offspring

A Dun  (w/Red gene) bred to a Black (w/Red &/or Dun gene) can produce Black Red or Dun offspring. _ These Black calves will carry a hidden Red gene and a hidden Dun gene, the Red calves will also carry a Dun gene

S.Thomas 1/10/09

DEXTER COLOR SYMBOLS & INTERPRETATIONS

 

RED:

E+/e =Red w/o Dunrecessive           

e/e  =Red w/o Dunrecessive                  

E+/E+ B/B  = Red w/o Dun recessive         

E+/E+   B/ = Red w/Dun recessive

E+/E+   b/b = Red w/Dun recessive

E+/e  B/B  = Red w/o Dun recessive

E+/e  B/  = Red w/Dun recessive

E+/e  b/b  = Red w/Dun recessive

e/e   B/B  = Red w/o Dun recessive

e/e   B/b   = Red w/Dun recessive

e/e b/b  = Red w/Dun recessive

 

DUN:

ED/ED     b/b       = Dun w/o Red recessive

ED/e      b/b       = Dun w/Red recessive

ED/E+    b/b       = Dun w/Red recessive

 

BLACK:

ED/ED   = Black w/o Dun or Red recessives

ED/ED   E+/E+ = Black w/Red recessive

ED/ED   E+/e  = Black w/Red recessive

ED/ED  e/e  = Black w/Red recessive

ED/ED B/b  = Black w/Dunrecessive

ED/ED   B/B = Black w/o Dun recessive

ED/E+     B/B = Black w/Red recessive w/o Dun recessive

ED/E+     B/b      = Black w/Red & w/Dun recessive

ED/e  B/B = Black w/Red recessive w/o Dun recessive

ED/e  B/b  = Black w/Red recessive & w/Dun recessive

  

Sthomas 1/10/09

  
1)
Black is dominate, Red is recessive.
You can "test" a Black to see if there's a recessive Red (&/or Dun)  gene through a Lab sample test or by breeding (you get a colored calf from a breeding). If you cross 2 recessive carriers you can get the Red or Dun from black parents. (It takes 2 recessives to produce the colored offspring).
 
2)
Dun's can be produced from Blacks (with the Dun recessive) and also from Reds (with a Dun recessive).
Duns themselves will produce Dun, Red or  Black with compatible color matings.
 
3)
Red bred to red will only produce Red no matter what other colors are in the background.
Red is the only color that will breed true  
(If a Black animal didn't carry a recessive color gene it could only produce black offspring.
 
I don't try to explain the "scientifics" but the simple rule of thumb is:
2 Reds together are dominate over Dun and Black ie:
 
Two Red parents can only produce Red offspring.
(even if  both were from Dun parents) 

Two Red parents can only produce Red offspring.
(even if  both were from Black parents)
 
Until Sheila Schmutz found the Dun color locus  we thought 1/2 Red 1/2 Dun bred to each other would be able to produce a new color......and predicted it would be 
cream colored. Sheila's findings indicated  that can't be the case.

 Reds will only produce Reds when bred together.
  
Some information and photos about white markings in the Dexter Breed today
 
White Spotting in Cattle    White-Spotting Mutants

Since the wild type for white spotting is a lack of spotting, any white spotting on cattle is due to a mutant or combination of several mutants. In general, the understanding of the genetic control of white spotting is complete except for a few patterns discussed later. A major mutant gene affecting spotting patterns in cattle is the Piebald; irregular areas of pigmented and white; feet, belly, and tail usually white recessive Holstein, Guernsey, Jersey, Simmental, Ayrshire, Maine-Anjou and others exhibit this gene.

In some solid-colored breeds, white spotting along the underline, especially in front of the navel may be due to the presence of this Piebald gene.

In many cases, however, such spotting is not caused by the Piebald gene and it is unclear as to the genetic mechanism involved. Selection against such animals should reduce the incidence of such spotting, but reduces the selection intensity possible for traits related to productivity.
 
Link to Sheila Schmutz color research is posted here:
 
WHITE SPOTTED DEXTERS
Spotted heifer calf 2013
 
Spotted Heifer calf 2008
 
 
Spotted Bull Calf 2008
Spotted bull calf  2005
 
Spotted heifer 1988
  
                            Spotted Heifer 1980's                                                                                                                                                           
                         
Underline White
 
White on udder, spotting forward of navel 
 
 
Totally White udder with white strip to navel
 
White udder with some black skin pigment
 
Udder area white on red heifer
 
Underline white on newborn heifer
 
Black or Dun or Red or ?
 
This calf with a black muzzle and black eye circle will shed out as a Black Dexter.
The color transformation will usually complete by 6-9 months of age.
 

Home Page

Dexters

Kids & Kows" - Our Lifelong Commitment

Female Stars in our Herd

More About Dexter Cattle

Breeding Colors & White in Dexters

DNA Testing

Breeding/Reproduction - Condition W/Score Chart

CHONDRODYSLPASIA

Horn Examples & Polled Info.

PHA- Pulmonary Hypoplasia w/Anasarca

Registration - Tattooing - Cattle Diseases

Worming & Fly Control

POLLED History & English APPENDIX explained

DEXTER HALTERS

DEXTERS FOR SALE-Thomas'

Dexter Semen Available -Thomas'

Older Dexter Females

Our Dexter TWINS & TRIPLETS

Briarwood Blaze O'Glory #10329 - Progeny

Thomas' Magic Pride -Sire - Dam - Progeny

Lane End Lucifer's Wizard #3556

Thomas' Prides Red Baron #4882 Progeny

Herd Sires @ Thomas' 1976-2013

Finding & Choosing Dexters

Dexter BEEF

A.I. Bulls

HISTORICAL DEXTER BULLS

American Min. Cattle Reg - Pacheco/ "Wee Gaelic"

English Shepherd Dogs

Thomas' Char-Gin Boston, (aka "Boss")

Beebe's ToSa Maggie

ES PUPPIES!

Arkwright-Thomas' Nanny McPhee

Thomas' ES X RC Farm Dogs

Contact Us

Links


Thomas' Dexters
Sandi & Al Thomas
P.O.Box 135
Antelope, OR 97001
 

 

[Home Page] [Dexters] [Kids & Kows" - Our Lifelong Commitment] [Female Stars in our Herd] [More About Dexter Cattle] [Breeding Colors & White in Dexters] [DNA Testing] [Breeding/Reproduction - Condition W/Score Chart] [CHONDRODYSLPASIA ] [Horn Examples & Polled Info.] [PHA- Pulmonary Hypoplasia w/Anasarca] [Registration - Tattooing - Cattle Diseases] [Worming & Fly Control] [POLLED History & English APPENDIX explained] [DEXTER HALTERS] [DEXTERS FOR SALE-Thomas'] [ Dexter Semen Available -Thomas'] [Older Dexter Females ] [ Our Dexter TWINS & TRIPLETS] [Briarwood Blaze O'Glory #10329 - Progeny] [Thomas' Magic Pride -Sire - Dam - Progeny] [Lane End Lucifer's Wizard #3556] [Thomas' Prides Red Baron #4882 Progeny] [Herd Sires @ Thomas' 1976-2013] [Finding & Choosing Dexters] [Dexter BEEF] [A.I. Bulls] [HISTORICAL DEXTER BULLS ] [American Min. Cattle Reg - Pacheco/ "Wee Gaelic" ] [English Shepherd Dogs] [Thomas' Char-Gin Boston, (aka "Boss")] [Beebe's ToSa Maggie] [ES PUPPIES!] [Arkwright-Thomas' Nanny McPhee] [Thomas' ES X RC Farm Dogs] [Contact Us] [Links]

 [Home] [Refresh/Reload] [back to top]

Images & Text in this site are Copyright - DO NOT COPY!

Hit Counter


Web By DogWebs.Biz

EDIT