MRT Kennels American Bulldogs

01/01/2024

MRT Kennels American Bulldogs Wishing You A Happy New Year

12/30/2023

MRT Kennels American Bulldogs
Healthy Dog Food ...

12/30/2023

12/28/2023

MRT Kennels American Bulldogs
** It's all in the Genetics **

( Brindling and Blue Brindle )

Brindle is one of the alleles on the K locus. There are three K locus alleles
KB (dominant black),
kbr (brindle)
ky (non-solid black - allows A locus to be expressed)...
KB is the top dominant and ky is the bottom recessive...
kbr sits between the two...
It is entirely dominated by KB
So just one KB allele will stop brindle from being expressed - but it is dominant over ky, so a brindle dog can have the genotype kbrkbr or kbrky...

A dog with one or two kbr alleles will express whichever alleles it has on the A locus..
But any and all phaeomelanin (red) in the coat will be brindled. This means that the extent of the brindling on the coat depends on the A locus.
The following list shows how the different A locus genes affect the appearance of brindle.

Brindle + aa (recessive black) - dog will be solid black, liver, blue or isabella (recessive black does not allow the production of phaeomelanin in the coat)

Brindle is caused by a complex gene process and is technically a form of mosaicism, where some cells express one allele (KB) while some cells express the other (ky), This makes it very difficult to test for,
There are currently no commercially available tests that are able to detect brindle. Brindle dogs will usually test as KBky, and carriers (one dominant black allele, one brindle) cannot be identified without breeding.

Blue Brindle Gene
The dilution color is caused by mutations on the MLPH gene. Dilution is a recessive gene that means you have to have two copies of d to cause the diluted coat color....
( d/d ) = dilution color..
( Kbrdd ) = Blue Brindle..

12/17/2023

* MRT Kennels American Bulldogs Valkyrie of JDJ *

* Johnson's Rebel Rousier 600 Daughter *
** Johnson's Rebel Rousier 605 "Kermit" Granddaughter & 1/2 Sibling **
** Johnson's Rebel Rousier 500 Granddaughter **
* Johnson's Rebel Rousier 600 Great Granddaughter *

100% Johnson Bloodline
( DNA- Profiled )
Linebred Rebel Rousier 600 Daughter

https://www.pedigreedatabase.com/american_bulldog/dog.html?id=3183131-mrts-valkyrie-of-johnson-kennels?_v=20221010175235

12/17/2023

MRT Kennels American Bulldogs

JBT1 Johnson's Rebel Rouiser 709 "Ranger"
100% Johnson Bloodline
Brothers Bulldogs Apache Son

https://www.pedigreedatabase.com/american_bulldog/dog.html?id=3193287-johnsons-rebel-rouiser-709%3F_v%3D20230406204209

12/17/2023

MRT Kennels American Bulldogs Amora of JDJ

100% Johnson Bloodline
* *Johnson's Rebel Rouiser 600 Daughter **
* Johnson's Rebel Rousier 605 "Kermit" Granddaughter / 1/2 Sibling *
* Johnson's Rebel Rousier 500 Granddaughter *
* *Johnson's Rebel Rousier 600 Great Granddaughter * *

( DNA Profiled )
Linebred on
Johnson's Rebel Rousier 600
Johnson's Rebel Rousier 500
Johnson's Elenaore

https://www.pedigreedatabase.com/american_bulldog/dog.html?id=3184091-mrts-amora-of-johnson-kennels%3F_v%3D20220817190407

12/10/2023

We are showcasing
Johnson's Rebel Rousier 605 "Kermit"
He is a Rebel Rousier 600 son
And Johnson's Rebel Rousier 500 Grandson
Owned by John D Johnson Kennels
100% Johnson Bloodline

https://www.pedigreedatabase.com/american_bulldog/dog.html?id=2816294-johnsons-rebel-rousier-605%3F_v%3D20220926163442

12/08/2023

We are showcasing
** Johnson's Rebel Rousier 600 **

Owned by John D Johnson Kennels
100% Johnson Bloodline

Linebred
Johnson's Rebel Rousier 500
Johnson's Big Buck Boomer
https://www.pedigreedatabase.com/american_bulldog/dog.html?id=3017739-johnsons-rebel-rousier-600%3F_v%3D20201004085055

11/13/2023

MRT Kennels American Bulldogs Amora of John D Johnson Kennels

Johnson's Rebel Rouiser 600 Daughter
Some fun with the flirt pole
100% Johnson Bloodline
Linebred Rebel Rouiser
https://www.pedigreedatabase.com/american_bulldog/dog.html?id=3184091-mrts-amora-of-johnson-kennels%3F_v%3D20220817190407

11/10/2023

* MRT Kennels American Bulldogs Valkyrie of JDJ *
* Johnson's Rebel Rousier 600 Daughter *
** Johnson's Rebel Rousier 605 "Kermit" Granddaughter & 1/2 Sibling **
** Johnson's Rebel Rousier 500 Granddaughter **
* Johnson's Rebel Rousier 600 Great Granddaughter *
( DNA- Profiled )
Linebred Johnson's Rebel Rousier
https://www.pedigreedatabase.com/american_bulldog/dog.html?id=3183131-mrts-valkyrie-of-johnson-kennels?_v=20221010175235

11/01/2023

Happy Halloween

10/31/2023

MRT Kennels American Bulldogs
JBT1 Johnson's Rebel Rouiser 709 "Ranger"
100% Johnson Bloodline
Brothers Bulldogs Apache Son

https://www.pedigreedatabase.com/american_bulldog/dog.html?id=3193287-johnsons-rebel-rouiser-709%3F_v%3D20230406204209
John D Johnson Kennels

10/26/2023

Like to take the time and wish a vary special boy a happy 14th birthday
MRT Kennels Tank
10/22/09

10/25/2023

* MRT Kennels American Bulldogs Valkyrie of JDJ *
100% Johnson Bloodline
( DNA- Profiled )
21 months old
https://www.pedigreedatabase.com/american_bulldog/dog.html?id=3183131-mrts-valkyrie-of-johnson-kennels?_v=20221010175235

10/22/2023

Bullet of MRT Kennels as Pennywise at daycare
He is 17 months old now
His family is doing an amazing job with him

10/06/2023

* MRT Kennels American Bulldogs Valkyrie of JDJ *
2022 Best In Show 100% Johnson Puppy
* Johnson's Rebel Rousier 600 Daughter *
** Johnson's Rebel Rousier 605 "Kermit" Granddaughter & 1/2 Sibling **
** Johnson's Rebel Rousier 500 Granddaughter **
** Johnson's Rebel Rousier 600 Great Granddaughter **
100% Johnson Bloodline
( DNA- Profiled )
Linebred on
* Johnson's Rebel Rousier 600 *
* Johnson's Rebel Rousier 500 *
* Johnson's Rebel Rousier 600 *
* Johnson's Elenaore *

https://www.pedigreedatabase.com/american_bulldog/dog.html?id=3183131-mrts-valkyrie-of-johnson-kennels?_v=20221010175235

10/03/2023

* MRT Kennels American Bulldogs Valkyrie of JDJ *
* Johnson's Rebel Rousier 600 Daughter *
** Johnson's Rebel Rousier 605 "Kermit" Granddaughter & 1/2 Sibling **
** Johnson's Rebel Rousier 500 Granddaughter **
100% Johnson Bloodline
( DNA- Profiled )
Linebred on
* Johnson's Rebel Rousier 600 *
* Johnson's Rebel Rousier 500 *
* Johnson's Rebel Rousier 600 Great Granddaughter *
https://www.pedigreedatabase.com/american_bulldog/dog.html?id=3183131-mrts-valkyrie-of-johnson-kennels?_v=20221010175235

09/19/2023

MRT Kennels Chloe

09/13/2023

MRT Kennels ** It's all in the Genetics **

( Linebreeding )
Linebreeding is a term that is often used to describe breeding among relation in dogs from
the same family line/bloodline/pedigree..

An examples of this would be a breeding between
Grandfather to Granddaughter,
First or Second Cousins,
Uncle to Niece,
Aunt to Nephew,
Linebreeding is the breeding style that is a compromise between inbreeding and outcross breeding.
Linebreeding is to preserve Bloodlines / certain traits in a Bloodline / Phenotype / Genotype ...

Linebreeding is a slower and less direct way to add or fix desirable traits in a bloodline/ pedigree and offers more options and fewer risks than inbreeding....

Grandfather × Granddaughter breeding 12.5% COI
1st Cousin × Cousin is 6.25% COI

Here are some tools to use in a breeding program

Genetics Lab
Embark For Breeders
Embark Matchmaker

07/18/2023

We are showcasing
Champion Johnson's Rebel Rousier 732 of YAB "Blue"
Johnson's Rebel Rousier 605 Son and Johnson's Rebel Rousier 600 Grandson
Owned by J&A's Johnson American Bulldogs
100% Johnson Bloodline

https://www.pedigreedatabase.com/american_bulldog/dog.html?id=2891182-johnsons-rebel-rousier-732-of-yab%3F_v%3D20230611130143

07/17/2023

We are showcasing
Johnson's Rebel Rousier 605 "Kermit"
He is a Rebel Rousier 600 son
And Johnson's Rebel Rousier 500 Grandson
Owned by John D Johnson Kennels
100% Johnson Bloodline

https://www.pedigreedatabase.com/american_bulldog/dog.html?id=2816294-johnsons-rebel-rousier-605%3F_v%3D20220926163442

07/16/2023

We are showcasing
Johnson's Rebel Rousier 600
He is a Rebel Rousier 500 son
owned by John D Johnson Kennels
100% Johnson Bloodline
https://www.pedigreedatabase.com/american_bulldog/dog.html?id=3017739-johnsons-rebel-rousier-600%3F_v%3D20201004085055

07/02/2023

** MRT Kennels it's all in the Genetics **
A little Flirt Pole Action
MRT Kennels Amora of JDJ
* Johnson's Rebel Rouiser 600 Daughter *
* Johnson's RebelRousier 600 Great Granddaughter*
** Johnson's Rebel Rousier 605 Granddaughter **
** Johnson Rebel Rousier 500 Granddaughter **
( DNA Profiled )
* 100% Johnson Bloodline *
John D Johnson Kennels
https://www.pedigreedatabase.com/american_bulldog/dog.html?id=3184091-mrts-amora-of-johnson-kennels%3F_v%3D20220817190407

07/01/2023

Tank of MRT Kennels
13 months old now
His family is doing an amazing job with him