The Breeding Library

In dogs, most failures to conceive trace back to mistimed breeding rather than to any real fertility problem. These guides walk one breeding cycle in the order it happens.

· ·

Start here · the foundation Progesterone Testing for Dog Breeding: What the Numbers Actually Mean Why progesterone rises before ovulation in dogs, what each milestone concentration represents, and the breeding days for fresh, chilled and frozen semen. 13 min read

Thresholds belong to the assay that produced them, a number from one analyzer is not valid on another, while the day count from the LH surge transfers between all of them. If two conflicting charts have ever confused you, start with why your analyzer’s chart doesn’t match the textbook.

01 · Before the blood draw Vaginal Cytology: What the Cells Tell You Before the First Progesterone Test 10 min read 02 · Finding Day 0 Building a Testing Schedule: When to Start and How Often to Test 9 min read 02 · Finding Day 0 The False Rise: Why One Reading Above 2 ng/mL Isn’t Day 0 7 min read 03 · The breeding days Matching Insemination Method to the Progesterone Window 8 min read 04 · Due date & whelping Due Dates, Whelping, and What Progesterone Cannot Confirm 8 min read 04 · Due date & whelping Timing an Elective C-Section With Progesterone 8 min read Any stage · Reading results Why Your Analyzer’s Chart Doesn’t Match the Textbook 7 min read Any stage · Reading results Assays, Units, and Sample Handling: Why Two Results Disagree 7 min read Equipment What You Need Before Your First Progesterone Test 5 min read Equipment Why Progesterone Test Kits Are Not Interchangeable 5 min read Background science Dog Progesterone vs. Human Progesterone: Same Hormone, Different Rules 11 min read

No guide matches that.

Tools

Analyzer PETlife Pro-DX View analyzer $75 → $9 ROI calculator What following one cycle costs, sending out versus testing at home Run the numbers Pup Planner Free app Plot results over time and keep breeding history with the dog Get the app

These resources are educational and are not a substitute for veterinary advice. Threshold values are assay-dependent and are not interchangeable between analyzers. Breeding decisions, result interpretation, cesarean scheduling and any medical intervention should be made in consultation with your veterinarian or a board-certified theriogenologist.