The Naga Cemani

[MysteryChicken]

That would probably work.

You may not need the Jersey Giant, depending on what size birds you are able to get from your other crosses.

There are several genes that control size in chickens, and different breeds may have a different combination of those genes. I read of someone once that crossed two bantam breeds and got standard-sized chickens!

I would try to pick the largest birds among your other crosses, and raise some Jersey Giants, and look to see whether the Giants are actually bigger than your crosses before making a final decision on whether to use them.

Does that mean the Bantam Dwarfism gene is recessive?

I got what looks to be a Dwarf out of breeding two LF Silkies together.

 

[MysteryChicken]

Never mind, Bantam Dwarfism is a dominant gene.

I'll figure out what form of Dwarfism my LF Silkies carry. It seems recessive, but has no effect on shank length.

My blue partridge Silkie seems to fit the Recessive Sex-Linked Dwarfism gene that also reduces body weight, but her shanks are relatively normal length. So not 100% sure what's going on with my silkies.

 

[JacinLarkwell]

Why are you adding Cemani to the name?

 

[MysteryChicken]

Why are you adding Cemani to the name?

Cemani means black. She originally had plans to use Ayam Cemani in the breeding project.

 

[JacinLarkwell]

Cemani means black. She originally had plans to use Ayam Cemani in the breeding project.

Yeah, but that's more of a regional word, and if it's not related to a stem cemani, it's likely to cause a lot of confusion for people only familiar with that breed namewise

 

[MysteryChicken]

Yeah, but that's more of a regional word, and if it's not related to a stem cemani, it's likely to cause a lot of confusion for people only familiar with that breed namewise

Okay, but the English name is Black Dragon, which could be used instead.

 

[JacinLarkwell]

Okay, but the English name is Black Dragon, which could be used instead.

Ah, okay. That makes more sense. I Thought they were debating between the two names

 

[NatJ]

Does that mean the Bantam Dwarfism gene is recessive?

I got what looks to be a Dwarf out of breeding two LF Silkies together.

There is not really a single "Bantam Dwarfism" gene. There are several genes that affect size, and when a chicken has the "small" version of several of those genes, they are a bantam. When they've got some "big" and some "small" genes, they are small-standard or middle sized. And when they've got the "big" version of all those genes, they are big or giant.

And for at least some of those genes, "small" is recessive to "large."

There is a particular gene called Sex Linked Dwarfism, but by itself it isn't enough to turn a big chicken into a bantam. I've read that it is sometimes used in the female parent line for producing meat chickens, so the hens will be smaller and eat less. Then when they are crossed with a not-dwarf male, all of the chicks grow to the desired large size for meat.

 

[MysteryChicken]

There is not really a single "Bantam Dwarfism" gene. There are several genes that affect size, and when a chicken has the "small" version of several of those genes, they are a bantam. When they've got some "big" and some "small" genes, they are small-standard or middle sized. And when they've got the "big" version of all those genes, they are big or giant.

And for at least some of those genes, "small" is recessive to "large."

There is a particular gene called Sex Linked Dwarfism, but by itself it isn't enough to turn a big chicken into a bantam. I've read that it is sometimes used in the female parent line for producing meat chickens, so the hens will be smaller and eat less. Then when they are crossed with a not-dwarf male, all of the chicks grow to the desired large size for meat.

These are forms of Sex Linked Dwarfism.

Bantam dwarfism, dwB

Sex-linked recessive dwarfism, dw

MacDonald dwarfism, dwM

A Hormone cause is listed in the Sex-linked Dwarfism:
, thyroid hormones tiroxine (T4) triiodothyronine (T3), growth hormone (GH), and its related growth factor, Insulin-like growth factor-I (IGF-I)

There's also Autosomal Dwarfism.

Thyrogenous dwarfism, td

Autosomal dwarfism, adw

 

[MysteryChicken]

This is a bit off topic, but still useful.