FutureFlock Genetics Predictor V4

A breeder-friendly pairing tool that helps estimate chick sex split, phenotype, and genotype outcomes from rooster and hen traits. This version is cleaner, more responsive, easier to read on phones and tablets, and includes a full help section.
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Rooster details

Start here. Enter the rooster's breed, visible colour, body traits, and general notes. The more accurate your base details are, the more useful the prediction will be.

Hen details

Enter the hen's visible traits and egg line here. If you know she is split for a trait, add that later in the Advanced Traits section.

Rooster advanced traits

Use this for traits you can clearly see on the bird, or traits you know the bird is carrying from test breeding or trusted line records.

Hen advanced traits

Tick visible or known carried traits here. These switches help the trait-likelihood section become more practical for breeders.

Rooster sex-linked genes (ZZ)

Roosters carry two Z chromosomes. Use these inputs if you are working on sex-linked projects such as barring, silver/gold, or chocolate-related pairings.

Hen sex-linked genes (ZW)

Hens carry one Z and one W chromosome. This matters because daughters get the sire's Z chromosome, while sons get one Z from each parent.

Rooster autosomal genes

These genes affect both male and female chicks. Use them when you know genotype information, or when you want to test likely splits.

Hen autosomal genes

These are the matching autosomal inputs for the hen. If you do not know a genotype exactly, choose the most likely value from your line records.

Predicted offspring overview

Trait likelihoods

Breeder notes

Comparison

Run a prediction to compare against the previous one.

Last pairing vs current pairing

No previous prediction to compare yet.

Phenotype outcomes

Comb outcomes

Egg line and body traits

How to read these results

The prediction combines your visible trait inputs with your genotype inputs. The output is not a guarantee for every chick; it is a planning tool. Use it to compare pairings, identify likely splits, and spot projects where male and female chicks may differ.

Male chick outcomes

Female chick outcomes

Printable report

This page condenses the most important prediction results into a cleaner format for printing or saving.

How to use this tool

  1. Go to Parents and enter the rooster and hen basics first.
  2. Go to Traits and tick any visible traits or known carried traits.
  3. Use Sex-linked if you are working with barring, silver/gold, or chocolate projects.
  4. Use Autosomal if you know or want to test likely genotype combinations such as blue, lavender, frizzle, or mottling.
  5. Press Update prediction to jump to Results.
  6. Read the overview first, then check male and female sections separately if sex-linked genes are involved.
  7. Use the comparison box to see what changed from the previous prediction.
  8. Use the printable report if you want a clean record for the pairing.

What each main section means

Parents
This is where you enter visible information such as breed, colour, pattern, size, comb type, egg line, temperament, and notes. It gives the tool its base phenotype information.
Advanced traits
Use these toggles for things like crest, beard/muffs, extra toes, frizzle, naked neck, dwarf, and known splits. These affect the practical trait-likelihood bars in Results.
Sex-linked genes
These genes can produce different outcomes in male and female chicks. This is especially useful for auto-sexing or sex-linked colour projects.
Autosomal genes
These genes affect both sexes and are useful when you know the genotype or want to test a likely split. The tool shows genotype possibilities under the male and female result panels.

What the options mean

Basic phenotype options

  • Breed: The visible breed or flock type.
  • Line / strain: Your own line name or strain note.
  • Visible colour: The bird’s main observed colour.
  • Pattern: Laced, barred, pencilled, plain, and so on.
  • Comb type: Single, pea, rose, walnut, and others.
  • Size class: Small, medium, large, giant, bantam.
  • Egg line: Expected egg colour tendency for future pullets.
  • Temperament: Used for a soft scoring estimate only.
  • Shank / skin / ear lobe: Visible body details for line comparison.
  • Broodiness: A general 1 to 5 tendency estimate.

Advanced trait toggles

  • Feathered legs: Leg feather trait visible in breeds like Brahma or Cochin.
  • Crest: Topknot or crest visible on the head.
  • Beard / muffs: Facial feathering.
  • Extra toes: Polydactyl expression.
  • Frizzle visible: Bird visibly expresses frizzle feathering.
  • Silkie feather visible: Soft silkie-style feathering visible.
  • Naked neck visible: Neck feather reduction visible.
  • Rumpless: Reduced or absent tail base.
  • Dark skin / fibromelanistic: Dark skin expression.
  • Dwarf: Dwarf expression visible or known.
  • Known split...: Use when line records show the bird carries a trait not clearly visible.

Gene sections explained

Sex-linked genes
Barring affects barred/cuckoo influence. Silver can influence silver vs gold/red base. Chocolate is a sex-linked dilution project in some lines. Because hens are ZW and roosters are ZZ, sons and daughters can differ.
Autosomal genes
These include blue, lavender, dominant white, recessive white, mottling, pea, rose, frizzle, silkie feather, naked neck, beard/muffs, polydactyl, fibromelanosis, dwarf, extended black, wheaten, columbian, and pattern.

Important limitations

This tool is designed to be useful, readable, and broad. Poultry genetics can be more complex than a single offline tool can fully model. Some traits vary in expression, some lines behave differently, and some colour projects involve more loci than shown here. Use this tool as a breeder planning aid, not as a final guarantee for every chick.