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Sable Pomeranian in show stack on grooming table, coat backlit, eyes bright and alert
Pomeranian Health & Genetics

Every coat blow,
every patella,
documented.

A digital library stitched together by breeders and veterinary geneticists — for show breeders, pet owners, and puppy buyers who read OFA numbers like nutrition labels.

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2,400+ breeder reviews

"Trusted by the breeders who read pedigrees before bedtime."

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Genetic Testing Guides

Genetic Testing Guides

DNA panel breakdowns, merle zygosity interpretation, and alopecia X progression timelines — every test your breeding program should run.

Close-up of a DNA helix model under soft laboratory lighting on a white surface
DNA Panels

Reading a Pomeranian DNA Panel: What 47 Markers Actually Tell You

A guide to interpreting Embark and Wisdom Panel results — which variants matter for Poms, which are noise, and how to cross-reference with OFA.

12 min readRead article
Merle Genetics

Merle Zygosity Chart: M/m vs M/M at a Glance

M/m (Het Merle)Safe to breed — standard precautions
M/M (Hom Merle)Double merle — avoid as breeding stock
Mc/m (Cryptic)Test before breeding — looks solid
Mc/McEquivalent risk to M/M

Understand the difference between heterozygous and homozygous merle — and why breeding two cryptic merles carries the same risk as visible merle × merle.

8 min readFull guide
Alopecia X

"Alopecia X remains the most humbling condition in Pomeranian genetics — every time we narrow the locus, the phenotype shifts."

Dr. Meredith Calloway, DVM DACVD

Board-Certified Veterinary Dermatologist, UC Davis

15 min readRead article
Cream Pomeranian with full show coat sitting on a grooming table under warm studio lighting
Color Genetics

The E Locus and Cream Pomeranians: Why "White" Is Never Just White

Ee, ee, and E-locus modifiers explained — how a single base change turns a sable into an ice-white show dog.

10 min readRead article
COI ToolTool

How to Calculate COI Without a Software Subscription

5-generation COI target< 6.25%
Breed average (AKC)8.4%
High-risk threshold> 12.5%
Inbreeding depression onset> 25%

Step-by-step Wright's coefficient method using a 4-generation pedigree — with a worked example on a typical show line.

18 min readOpen tool
Veterinary laboratory with blood sample tubes lined up for progesterone testing under clinical lighting
Progesterone

Progesterone Timing for Pomeranians: The 5 ng/mL Decision Point

Why Poms ovulate earlier than the LH surge suggests, and how to build a timing protocol around quantitative progesterone rather than cytology alone.

11 min readRead article

Weekly Briefing

The Coat & Gene Letter

One email each week. New test interpretations, clearance guides, and breeder notes — nothing else.

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Veterinary Deep Dives

Veterinary Deep Dives

Patella grading visuals, tracheal collapse staging, dental occlusion diagrams — clinical depth written for breeders who read radiographs.

Veterinarian examining small dog knee joint under bright clinical examination lights
Orthopedics

OFA Patella Grading: What Grade I, II, and III Mean for a Breeding Decision

A practical guide to luxating patella grades — with radiograph descriptions, clinical signs by grade, and how to weight patella scores in a mating matrix.

14 min readRead article
Cardiac

Auscultation vs. Echocardiography: What the OFA Cardiac Database Requires

OFA Cardiac Exam Age≥ 12 months recommended
Examiner RequirementBoard-certified cardiologist
MethodAuscultation (echo optional)
PDA prevalence (Poms)~1.2% of breed

OFA cardiac clearances for toy breeds — what a board-certified cardiologist is actually listening for, and why age-at-exam matters for Poms.

9 min readFull guide
Trachea

"A Grade 1 tracheal collapse on fluoroscopy is not a death sentence — it's a management conversation. Grade 4 is a surgical conversation."

Dr. Sanjay Nair, DVM DACVIM

Veterinary Internal Medicine, Cornell University Hospital for Animals

13 min readRead article
Veterinary dental examination of small dog with bright overhead light showing tooth structure
Dentition

Dental Occlusion in Pomeranians: Reading Your Vet's Radiograph Email

Retained deciduous teeth, scissors vs. level bite, and persistent milk teeth — a visual guide to the dental report your vet just sent.

7 min readRead article
Pomeranian with bright amber eyes looking directly at camera with alert expression
Eyes

CAER Eye Exams: What the Ophthalmologist Is Mapping on That Chart

Hereditary cataracts, progressive retinal atrophy, and distichiasis in Poms — how to read a CAER certificate and what "breeder option" actually means.

10 min readRead article
ThyroidTool

Interpreting a Pomeranian Thyroid Panel: T4, Free T4, and TSH Reference Ranges

Total T4 (Pom reference)1.0–4.0 µg/dL
Free T4 (equilibrium dialysis)0.8–3.5 ng/dL
TSH< 0.6 ng/mL
OFA Thyroid exam age≥ 12 months

Why toy breed reference ranges differ from the general canine population, and how hypothyroidism mimics coat-blow in intact bitches.

11 min readOpen tool

Weekly Briefing

The Coat & Gene Letter

One email each week. New test interpretations, clearance guides, and breeder notes — nothing else.

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Breeder Tools

Breeder Tools

COI calculators, color-prediction matrices, and whelping checklists — the instruments a serious breeding program keeps within reach.

Newborn Pomeranian puppies sleeping together in a clean whelping box with soft bedding
Whelping

The Pomeranian Whelping Checklist: 72 Hours Before the First Puppy

Temperature drop protocol, dystocia risk factors specific to toy breeds, and the equipment list every whelping box should have within arm's reach.

16 min readRead article
Color Prediction

Color Outcome Matrix: Sable × Orange, Orange × Cream, and the Hidden Wolf-Sable Cross

Sable × Orange50% Sable · 50% Orange
Orange × Cream75% Orange · 25% Cream
Wolf-sable × Orange50% Wolf-sable · 50% Sable
Cream × Cream100% Cream (ee/ee)

Punnet-square style probability tables for the 12 most common Pomeranian color pairings — with expected phenotype percentages per litter.

20 min readFull guide
Pedigree Analysis

"A COI of 3% calculated on four generations can hide a COI of 22% if you open the pedigree to ten. The math is honest; the data depth is the variable."

Dr. Priya Anantharaman, PhD

Population Geneticist & Pomeranian Health Committee Advisor

17 min readRead article
Organized binder with health certificates and veterinary documents on a clean wooden desk
Health Clearances

Building a Health Clearance File: What to Collect Before the First Breeding

OFA, CAER, thyroid, cardiac, and DNA panels — the minimum clearance stack for a Pomeranian breeding program, with links to official submission portals.

9 min readRead article
Puppy ContractsTool

What a Responsible Puppy Contract Should Guarantee — and What It Cannot

Health guarantee minimum2 years, genetic conditions
Return clauseLifetime recommended
Spay/neuter requirementLegal in all 50 states
AKC co-ownershipRequires Form 3776

Health guarantees, return clauses, spay/neuter requirements, and the legal enforceability of co-ownership — written from a breeder's perspective.

13 min readOpen tool
Healthy adult Pomeranian male in full show coat standing in alert stack pose outdoors
Stud Selection

Evaluating a Stud Dog's Health Clearances: The 10-Point Checklist

Beyond the OFA number — how to request, read, and cross-reference a stud's full health portfolio before committing to a breeding.

11 min readRead article