Cochin Thread!!!

[cochins1088]

a properly laced bird must be homozygous for 3 separate mutations. the Pattern geme (Pg), the Columbian gene (Co) and the Melanizing gene (Ml). the diagram below shows what birds that are homozygous for columbian exhibit, when the other genes are heterozygous (only carry 1 copy of the gene needed) for either or both of the other mutations.

if you look at the diagram below, the top right image shows the wider lacing, indicating that these birds are heterozygous for the pattern gene, while the lower right image are birds homozygous for all 3 genes required for proper lacing...

Based on what you see in the hen above, would you say that she is heterozygous for the pattern gene?

If so, then I believe that I have one hen with the correct pattern (bottom right picture) one with a pattern similar to the bottom left picture, and the rooster is heterozygous for the pattern gene (top right picture). I have 3 more silver chicks growing out and I don't know what they'll be. How will this affect my breeding? Which are dominant?

Is there a website or book that explains this?

 

[ki4got]

Quote: it's hard to say on teh girl at the top, and there is no easy 'dominant/recessive' when you're dealing with multiple mutations at different loci... all 3 mutations are dominant. but there is no dominant/recessive amongst each other. they simply coexist to create the pattern you see in a laced bird.

when you see a mutation abbreviated with Capitalized letters, it's dominant, small letter is recessive. Pg is the pattern gene. pg+ is the wild type (non-pattern) the same for Ml (melanizing) vs ml+ (wild type) and Co/co+ take a look at the article i wrote, linked in my sig. maybe it might help a little?

basically you want the bird to look like the bottom right, ideally, but as long as you have at least the wide lacing, you'll get more of the narrow lacing down the road. the same for the tipped (bottom left). the top left one, the chances of getting narrow lacing from 2 of those birds is very slim. like 2-3% or somesuch... not worth the headache unless their type is awesome, then i might cross one with a bird with the thin lacing.

not a cochin, but here's my blue laced red wyandotte girl (splash laced actually) who is probably the best example of thin lacing i can easily find.


while my black laced red wyandotte girl has wider lacing, indicating she's probably Pg/pg+ (but homozygous for the other 2)

 

[Reyvaughn]

Can some please tell me why this mottled pullet is driving me nuts?! The person I bought the eggs from said they were pure Cochins. Mwhahaa! Jokes on me. One came out with a beard! But this girl... Obviously her head is wrong and she's always been lacking in cushion (just started to get one, actually). Is she pure or no (I am doubting it)?






And finally... The new blacks!








^ The pair from Jamie Matts. The cockerel is still fighting pneumonia. He's from a Sept 2012 hatch and she is from an early 2012 hatch.









^ The other 2 girls. The one on the left is the one I said isn't as wide as I'd like. No idea what their age is, but they've laid every day since they got here.

 

[cochins1088]

it's hard to say on teh girl at the top, and there is no easy 'dominant/recessive' when you're dealing with multiple mutations at different loci... all 3 mutations are dominant. but there is no dominant/recessive amongst each other. they simply coexist to create the pattern you see in a laced bird.

when you see a mutation abbreviated with Capitalized letters, it's dominant, small letter is recessive. Pg is the pattern gene. pg+ is the wild type (non-pattern) the same for Ml (melanizing) vs ml+ (wild type) and Co/co+ take a look at the article i wrote, linked in my sig. maybe it might help a little?

basically you want the bird to look like the bottom right, ideally, but as long as you have at least the wide lacing, you'll get more of the narrow lacing down the road. the same for the tipped (bottom left). the top left one, the chances of getting narrow lacing from 2 of those birds is very slim. like 2-3% or somesuch... not worth the headache unless their type is awesome, then i might cross one with a bird with the thin lacing.

not a cochin, but here's my blue laced red wyandotte girl (splash laced actually) who is probably the best example of thin lacing i can easily find.


while my black laced red wyandotte girl has wider lacing, indicating she's probably Pg/pg+ (but homozygous for the other 2)

Thanks so much for your response! It really helped me out. I also enjoyed reading you article.

 

[omaeve]

Quote: my crummy ph is what has that feature not my expensive camera

 

[kabhyper1]

Okay, so this is my little partridge cockerel. He tried to crow the other day. 6 weeks old. When will his colors start to change to the typical roo color? (Top pic is just a baby pic I love of him)

 

[sbucciarel]

it's hard to say on teh girl at the top, and there is no easy 'dominant/recessive' when you're dealing with multiple mutations at different loci...  all 3 mutations are dominant. but there is no dominant/recessive amongst each other. they simply coexist to create the pattern you see in a laced bird.

Hi

You're so knowledgeable about genetics maybe you can tell me. I just bought 5 Bantam Cochins from a breeding between a Red Frizzle hen and Partridge Roo. Here's the babies below. With that cross, what are the chicks?

 

[marney410]

Please be critical and tell me what's wrong with this girl as far as showing goes. She's hatchery quality and I want to know exactly what to avoid/look for when choosing show chicks She's a sweetie and the reason I chose to show Cochins, so she's not going anywhere. I have a buff guy that I'll post when I can get a better pic. Thanks!

 

[chickobsessed]

Anyone know if these guys are Cochin Mixes?  Just trying to figure out what they might be. 

Thanks

I have D'Uccles that looked like your #1 as babies. Maybe thats what it is. Suee looks that way and mine had very heavy feathering on the legs at a very young age.

 

[suncatcher]

So many lovely Cochins on here!