#chicken genetics

[homeofhousechickens]

Rob Garren posted a beautiful cockerel from his purple poultry project the other day, though i think this bird is from his general iridescent breeding pen. The bird is beautiful and looks like an oil slick. There isnt a "gene" that causes this, this is Rob selecting for more and more iridescence over time.

He also got some up close pictures of the feathers and they are breathtaking

You can follow Rob's project at the purple poultry facebook group but none of these birds (or eggs) are for sale yet so do not bother him.

#Chicken #rob garrens purple poultry project #chicken breeding #chicken genetics #chickenblr

[birdgenetics]

The E locus in Chickens!

The E extension locus is the locus that determine the base pattern in chickens. I will show you all some examples of E locus alleles from most dominant to most recessive. The E locus controls the extension of black eumelanin and gold phaomelanin on a bird. Some genes extend black over more of the bird and some restrict the black to certain areas and extend gold. Some of these are actually mahogany (Mh) instead of gold, and not all of these pictures are stellar. I'm doing my best.

E: Extended black. Extended black is the most dominant and darkest of the base patterns. It has been debated what an extended black would look like without additional melanizers. Black birds that you see at shows are solid black like this hen. These birds are usually E based, but black can actually be created on most loci, with enough melanizers.

But it is theorized that males without melanizers might have some gold leakage in the hackles, shoulders, and saddles like this guy. I believe he is mahogany based.

And hens might have a little gold in the hackles. Extended black also gives birds epidermal melanin in the beaks and shanks.

E^R: Birchen is the second most dominant and the second darkest of the E alleles. It causes a mostly black bird. The hen has gold edging on the hackle feathers, along with down the front of the neck and breast.

On males it is much the same except the gold also extends to the shoulders and saddles as well:

This guy is lacking the breast lacing. I think it might be caused by some type of melanizer.

Birchen is a very cool base color because of all the patterns that are based on it. With a few other genes, you can get spangled birds, laced birds, and autosomal barred birds all with fully patterned tails. Also, it is often conducive to dark facial skin and eyes with the id+ gene.

E+: Duckwing. This is the wildtype pattern, what red junglefowl are: gold duckwing. Proving that wildtype is anything but basic.

Hens are a stippled brown with salmon breasts and gold necks with black striping

A male will have a black breast and tail and a gold neck and saddle. His wing is what "gold duckwing" gets its name for. He has red shoulders/bows, a black wing bar and a bay-colored wing bay.

e^Wh: Wheaten. It is theorized there may be more than one wheaten allele. In my experience, it is incompletely dominant with duckwing. It is the lightest of all of the colors on the e locus. I think it looks very cool and exotic and has an interesting level of sexual dimorphism. Blue wheaten is one of my favorite colors.

The females are a lovely creamy color like this Ameraucana from the Ameraucana Alliance page (because apparently my only wheaten photos are blue wheaten or red wheaten.)

Also from the Ameraucana Alliance page, Susie Winder's Wheaten Male. Wheaten males and duckwing males can be hard to distinguish unless you know their background.

Since white has the most gold extension, it is the best base for creating patterns like buff and black-tailed red.

e^b: Partridge. The most recessive of the e alleles. Darker than e+ but lighter than E^R. It is hard to find one without the pattern gene. Partridge takes pattern well but always has a black tail.

Females are the same color as gold duckwing but with brown stippled breasts instead of salmon breasts. Here is a partridge Drents hen from Kippenpagina.

Partridge males are much the same as gold duckwing, except with a touch more black in the hackle. Also from Kippenpagina.

#finding a picture of #partridge #is what made me put off the #e locus #for so long #chickens #extended black #birchen #duckwing #wheaten #chicken genetics #bird genetics

[blatantescapism]

Mad scientist thought of the day:

I bet you could gene-edit a chicken to make its eggshells out of mother-of-pearl.

They’re both made almost entirely of calcium carbonate, plus stabilizing organic proteins

Mother-of-pearl gets its iridescence from the specific structure, helped in part by the scaffolding of the specific proteins

I bet you could do it

I bet you could even do different colors and varieties

Pearl eggshells.

#chicken #chickenblr #crispr #chicken genetics #gene editing #genetic engineering #mad science #mad scientist #pearls #mother of pearl #nacre #gemology #egg shells #shiny eggs #pearl eggs #mineralogy

[cu-taibhseil]

okay so i found my niche in the chicken community rather quickly. apparently madigin clarets are commonly used in cock fighting (duh, we rescued ours from that same kind of situation). but i havent seen anyone advertising ANY in any of the fb groups im in, and i havent seen any at the chicken swap.

ive been doing a ton of research on the breed and am DIGGING to find information on lines. we cant go back to that guys house, we're moving soon. he said gramps is definitely full madigin. but he's got white wing feathers and white speckling on his chest. i have been trying to find anything that says chickens have proven greying genes like horses or dogs and i cant find anything. there are pictures online of birds that look similar to gramps so there must be lines that produce like a white splash? i know splash is s dilution gene and usually leaves speckles of color with a majority white but gramps has the opposite going on

anyway. im like hellbent on figuring an estimate of genes for this man. especially with chicks already on the ground.

EDIT 1: it is not barring. i had a hard time understanding what barring meant so i did research. it doesn't look to me like barring, so much as white tipped dark feathers?

his feathers are not a majority barred either. it's mostly just on his chest. the quest continues.

EDIT 2: After a few more hours of sweet sweet research, I have uncovered the truth! He is in fact s Claret but he's not directly a Madigin Claret he's a Moore or "Spangled" Claret (incorrectly named), and the spangled/mottled gene in gamefowl is recessive on the wild type locus.

People in chicken forums would like to make it known that "spangled" refers to black mottled and white is just mottling. When it's minimal it also looks like its called a clayback gene. Though that might be regional.

For reference, a regular Madigin Claret I got off of Google.

And an incorrectly referenced "spangled" Claret.

Here's where I found the information regarding the wild type locus

Exciting stuff!

Now I just need to figure out the genotypes for the description of a claret and try out the calculator! I also want to see if I can correctly guess which chicks have the wild type gene and which don't.

(It could be s toss up bc the Allen Roundhead hen/Wynona doesn't show phenotypically to be wild type, though she could carry it.)

EDIT 3: I'm a glutton for punishment so I looked to see if there are any predictors of mottling in chicks. It's like no one breeds gamefowl on this particular forum, but the only predictor I could find was for Japanese chickens? Not familiar with the breed, but they said a dark headspot when they hatch (on yellow down chicks) and "penguin down" (on black down chicks) are kind of indicators of mottling in adulthood. It's not 100% but it's better than nothing.

Obviously this doesn't take into account that they're a cross and that the genes from the Roundhead could be interfering with the Claret mottling.

I'm guessing 2, 3, 6, and 7 are going to mottle out. There are more with head markings but they're more stripey.

#my chooks #gramps #madigin claret #rooster #chicken keeping #chicken genetics #moore claret #spangle gene #mottle gene #gamefowl #clutch 1

[hellsitegenetics]

(if this is too long please feel free to just do the "upset? I'm not upset" paragraph lol. The warrior cats fandom will thank you!)

"Your quarrel with Brambleclaw has to stop. Too many moons have passed. You have to accept that I'm Brambleclaw's mate, not yours. You can't keep trying to punish Brambleclaw for something that was always meant to be."

"I couldn't care less about Brambleclaw. It's not his fault he fell for a faithless she-cat. I know you think I've never forgiven Brambleclaw for stealing you from me, but you're wrong, and so is every cat that thinks so. My quarrel is with you, Squirrelflight. It always has been."

"All this was moons ago. Ashfur, I had no idea you were still upset."

"Upset? I'm not upset. You have no idea how much pain I'm in. It's like being cut open every day, bleeding onto the stones. I can't understand how any of you failed to see the blood... […] Stay there! I can't believe you didn't know how much you hurt me. You are the blind one, not Jayfeather. Who do you think sent Firestar the message to go down to the lake, where the fox trap was? I wanted him to die, to take your father away so you'd know the real meaning of pain. [...] Brambleclaw saved Firestar then. But he's not here now. He's not here—but your kits are."

"Enough, Ashfur. Your quarrel is with me. These young cats have done nothing to hurt you. Do what you like with me, but let them out of the fire."

"You don't understand. This is the only way to make you feel the same pain that you caused me. You tore my heart out when you chose Brambleclaw over me. Anything I did to you would never hurt as much. But your kits...If you watch them die, then you'll know the pain I felt."

"Kill them, then. You won't hurt me that way. If you really want to hurt me, you'll have to find a better way than that. They are not my kits."

String identified:

" a t aca a t t. T a a a. a t acct tat ' aca' at, t . ca't tg t aca tg tat a aa at t ."

" c't ca at aca. t' t at a at -cat. t ' g aca tag , t ' g, a cat tat t . a t , gt. t aa a ."

"A t a ag. A, a a t t."

"t? ' t t. a a c a ' . t' g ct a, g t t t. ca't ta a a t t … […] ta t! ca't 't c t . a t , t aat. t t ta t ag t g t t a, t ta a? at t , t ta at aa ' t a ag a. […] aca a ta t. t ' t . ' t —t t a."

"g, A. a t . T g cat a tg t t . at t , t t t t t ."

" 't ta. T t a t a t a a tat ca . t at t c aca . Atg t t a c. t t… atc t , t ' t a t."

" t, t. 't t tat a. a at t t , ' a t a tt a ta tat. T a t t."

Closest match: Eimeria praecox genome assembly, chromosome: 4 Common name: The parasite which causes coccidiosis

#tumblr genetics #genetics #asks #requests #sent to me #warrior cats #brambleclaw #ashfur #squirrelflight #warrior cats spoilers #<- ??? #thats our second pathogen! #this one causes illness in chickens #parasites

[a-dinosaur-a-day]

I have chickens and when I first heard of breeds with feathers on their feet, I at first imagined that'd it'd be like grouse feet, just the soft down covering their bodies on their feet making them mittens. What is the truth I'm not so happy about. The large veined feathers look so uncomfortable on their feet, what gene do you think would cause the flight feathers to be on their feet? Did birds common ancestors have them there like microraptor?

I mean, its entirely possible that feathers-on-feet genes remained in birds from a Microraptor-like ancestor, especially since Microraptor wasn't the only dinosaur to have such leg wings (Anchiornis & co have them too). Archaeopteryx doesn't, but it's also likely that the feature was lost quickly. But having feathers on feet would have been retained in those species for which it was useful, and turning back on the feather on feet gene would be expected in those species for which it was possible and beneficial.

The thing about domesticated animals is, humans aren't as good at evolution as just random chance is. So we tend to select for things that are bad or harmful in the process of trying to get the outcomes we want (see: pugs). So, the chickens, which do not have feathers on their feet for a reason, are probably not doing too well with extra feathers on their feet.

But a regulatory gene seems likely. That's what causes most of this stuff. Turning it off and on in different parts of the body.

#genetics #feathers #dinosaurs #birds #chickens #domestication

[friendlyengie]

please tell the vision you have for spy and scouts ma bc that tag had me dying

I will always and forever believe spy fell for scouts ma because she wasn’t like any woman he’s encountered before. Not because she was all that charming or able to keep up with his own wit, but because she was just. Fucking stupid. shes a bimbo and she beats the shit out of guys who look at her the wrong way at work. He falls in love with her and he’s so embarrassed about it, because she just keeps throwing the worlds worst pick-up lines at him and they keep working . Guy with the biggest ego imaginable falls for the lamest woman he’s ever met.

#Scout gets his horrible flirting skills from his mother. #It’s genetic #Spy suffered 27 years ago and suffers 27 years later when he meets up with her again and realizes his standards have Not Improved #he IS a fried chicken tramp. She took his ass to kfc for date night and he was too in love to pretend to be above it. #I will die by this #asks

[viktormaru]

I got a new pen... and then i rushed todays sketch cause its almost midnight... anyway i shaped my faves

#waffle art #valorant #someone said i make them slutty which was very nice of them to say i didnt mean to #i dont think chamber hsa chicken legs on purpose i think its just his genetics #hes the kind of guy that does morning runs and bicycle runs and swims and any other sport Sexily #Cypher the kind of guy who just knows how to stab and shoot you but would rather not get physically exhausted with activities #omen is a fucking mystery his muscles are not natural so who knows how he keeps that shape

[pomegranatecraft]

just some guys

#adair.png #minecraft #mineblr #modded minecraft #genetic animals #this is from the test build available on their patreon! #so not out to the public for free yet :) #but they're KILLING it with the chickens #mizunos 16 craft

[homeofhousechickens]

Pop quiz, can you guess what deformity Beeper has that is very common in feather footed chicken breeds like her? :3

(Hint, it has something to do with her feet)

#Beeper #chicken genetics #chicken medical #going to tag vetblr in case they want to try #vet #vetblr #ill probs give it a few then ill answer if no one gets it but i think someone will know the answer

[birdgenetics]

Should I make a chicken color genetics tournament?

When I say phenotypes I mean specific colors like black-tailed red, quail, blue wheaten etc.

When I say genes I mean genes that affect one aspect of the bird's appearance, like e^Wh wheaten or Bl blue. Yes, I think wildtype duckwing is one of my favorites but since it's not a mutation I guess it would be expressed as e+ which valid honestly. But I wouldn't include anything silly like co+ noncolumbian.

If this poll gets enough votes I will do it.

Then I will have you all give me suggestions on what colors I should include (if you pick the phenotype option.)

Since this blog has mostly focused on chickens so far, I think I will stick to that (unless another species of domestic bird gets a lot of interest for some reason) but in the future when I start to cover the other species more I may do them. I'm just suggesting chickens because this blog has more information on them so I feel like people could make more informed votes.

#bird genetics #chicken genetics #poll #birds #chickens

[derpinette]

i have a weird relationship with weight because i hated eating more than anything the moment i was ready for solids ( i hate chewing with my entire life always have & will ) which made me underweight for most of my life ( to this day ) & during late primary-middle school this made me actively suicidal because i felt like something was wrong with my sex because i just was not developing whatsoever prompting me to have a years long phase of trying to gain weight in any way i could ( #EPICFAIL by the way ) & i was already insecure but i felt seriously so unforgivably ugly after bullying not just at school but by adults of my entourage. but then i did in my late 15s which prompted the pendulum to swing in the other direction & suddenly i FREAKED OUT & thought well being skinny is pretty much all i have & know myself to be & clearly it is not going to last forever so i Better preserve it i was delusional about how skinny i thought i was actually i look stumpy & weird i have to prove myself. But now i am normal again kind of

#also i used to get beaten to finish my food nearly daily & it would take me forever to do that like literally hours with no exaggeration #just made me hate eating even more. now my technique is eating as fast as possible before i even realize how overwhelming #the sensory experience is & i can just be done with it VS the pain&dread of eating slowly -> disgust of Everything+hyperawareness #eating tightens my muscles like i hate it so fucking much catching the food putting it in my mouth CHEWING swallowing #what a damn chore #so i always liked cheese it was my “safe food” pretty much the only thing i liked #i even hated the foods autists usually like like fries & fried chicken meatballs ETC. HATED. #i was/am more of a soup & turning all my food into varieties of Slop kind of girl nothing hard for me please... #i experienced middle school during the like ♯Thick era of the world which was honestly a good thing like for The Populace #but i felt like killing myself because i felt like an unforgivable fugly genetic failure & people did not hesitate to let me know #anyway either way i would be unhappy caus if i did gain weight during puberty i would have a meltdown about all the Changes #so i feel content for the time being about only losing the fat in my face & getting age appropriate wrinkles really #trying to enjoy the privilege of thinness while i have it because it will not last forever 0_0 but that should not matter anyway... #the privilege of thinness: being way uglier than others & constantly looking like a gibbon dying of disease + no energy or strength ever #JK people are much MUCH nicer to thin people & they do things for me on account of looking physically incapable so um yay i guess #light at the end of the tunnel that is very significant in the grand scheme of things socially. ♯CountingMyBlessings #also i was raised on ♯HAES tumblr from 2014-2018 i truly believed in that & was so damn envious i was not curvy & beautiful LOL #so i never hated overweight people really i think for the most part the SJW tumblr values stuck with me #but now i know it depends on your base frame & genetics & there is no guarantee to what you choose to do (naturally) acceptance is peace #sorry for the gigantic Arse post i just needed to get that off my chest for a long time. not on here specifically just in general #oh & i am a ♯Grignoteuse but grignoter (grazing) is different from eating in my mind&body #& my insecurity was not a result of wanting to fit in really but kind of in the sense that i wanted people to stop berating me for my looks #like body wise only & also not understanding why every other girl looked like a girl blossoming into a woman #& i looked like i was transitioning to Malnourished (unsexed) Ape made worse by bein GNC.& like the need for control later on & erthang ETC

[troythecatfish]

#jack horner #dinosaurs #dinosaur #dino #ethics #bioethics #science #biology #video essay #chickens #animal rights #animal abuse #genetic engineering #jurrassicpark #jurrasic world #jurassic park #paleontology #paleoblr #tumblr recommendations #recommend #recommendation #youtube #youtube content #youtube recommendations #youtube video #video recommendation #youtube link #video link

[doll-wings]

Part of maturing is realizing you cannot continue to feed yourself the same processed garbage you had as a child. Things like snack cakes and cookies and processed artificial meals will ruin your health. You are not a child anymore, do not eat like one. You have control over what you put in your body. 🤍

#inspired by so many posts about ‘macaroni and chicken nugget dates’ and such #full grown adults gorging themselves on high fructose corn syrup gummy snacks and calling it a balanced meal #‘I only eat a little bit every day and I’m still morbidly obese so obviously it’s genetics’ #no it’s because you feed yourself sugar and syrup by the gallon #divine feminine #glow up #divine female #self care #radical self love #angel energy #dream girl #feminine energy #angelcore #princess aesthetic #fat belly #fat activism #fat acceptance #health at every size #health at any size

[broodygaming]

It’s spring time!!

They’re in the temporary tote to acclimate and warm up after transportation and to get to know one another and the smell of my food and get to know me. Then later they’ll upgrade to the big brooder. I like to let them all snuggle for a bit. I find they warm up and perk up faster and settle into the big brooder better that way.

#it is a bit cramped haha I had to use random stuff for food and water #I’ve never had this big of a group before #chickens #baby chicks #farming #i usually do like 15 but this is 30!! #some for my neighbor most for me #but I just needed some fresh genetics tbh #they’re so cute!

[bunnyb34r]

I need life to slow the fuck down bc my skin is starting to hurt real bad from all this picking :/

#marquilla #i need a healthy coping mechanism but nothing hits like self destruction dgdgdghddg #my brain is hard wired from genetics to pick at my skin and hair on both sides 😭 i was doomed from the start #i do try to not do it btw im not like oh well guess theres no options! like no i know but i need a foolproof one #or for life to fucking chill #every four years i become an over plucked chicken for 10 months and think ab pulling my head hair out bc yall are driving me up the wall #i got into a fight in 2016 ab the election and i nearly started punching... like i had to hit the bed instead bc im like god i cant hurt #them but GOD DO I FEEL THE NEED TO TO GET YOU TO GET IT #i think i like plucked DEEP that day just taking my anger and frustration out bc good lord #like how can you be like hmm well im gonna vote for this guy bc fuck poor people. i work retail and so i see people abusing ebt a lot #therefore it makes me mad and i wanna stop it. #like you only notice the 'fraud' and misuse/bad choices people make bc thats negative in your mind so #your brain holds onto it. youre not noticing the poor people who are just minding their business using ebt and feeding their family #ive gotten through to them at least a little ab how fraud is less than 1% and that the fraud is usually selling stamps for cash for diapers #and shit and that it's people sharing cards bc they need to pool their funds to feed their families #that the people you see stealing or buying expensive ass meats on ebt are not the majority and if they wanna waste their limited funds each #month like that then thats a them problem. mind your business. #anyway im fucking like deteriorating sggdgdggd