From the Field

Field Observations & Blog

First-person accounts from the field. Protocol comparisons based on actual conception rate data, recipient management lessons, and cases where the textbook answer was wrong.

Editorial standard

Every piece here is written from direct field experience. No sponsored content, no generic protocol summaries you can find on an extension service website. If there is a number cited, it came from a real program. If something did not work, that gets noted too.

Program Management

May 22, 2026 · 5 min read

Managing Expectations in an ET or AI Program

Grade 1 embryos in ideal recipients still fail 30 to 35% of the time. That is not a bad program — that is the biology. Here is how I calibrate expectations before a program runs, and how I think about what went wrong when the numbers come back low.

Program ManagementETAIRead →

Seasonal Management

May 19, 2026 · 5 min read

Running AI and ET Programs in Southeast Summer: What Heat Actually Does

Summer conception rates in Florida and the Southeast are lower than fall programs — not because of protocol failures, but because of biology. Here is what heat stress does differently to AI vs. ET programs, and what adjustments move the needle.

Seasonal ManagementHeat StressSoutheastRead →

Fetal Sexing

May 15, 2026 · 4 min read

Fetal Sexing Accuracy: The Window, the Biology, and When I Pass

The window for accurate fetal sex determination is real and the biology behind it is consistent. Here is what defines that window, what degrades accuracy within it, and when I will not give you a confident answer.

Fetal SexingUltrasoundPregnancy DiagnosisRead →

ET Program Management

May 12, 2026 · 5 min read

When the Flush Underperforms: What I See on Transfer Day

By the time I arrive, the donor work is done. Here is how I read what came out of it — embryo grading, the decision framework for borderline embryos, and how I handle the conversation with the producer.

ETEmbryo GradingProgram ManagementRead →

Recipient Management

May 8, 2026 · 5 min read

ET Recipient Selection: What I Actually Look For

Most ET programs fail on the recipient side, not the donor side. Here is the criteria I actually use — body condition, cycling status, age, structure — and what gets a cow pulled on the spot.

ETRecipientsBCSRead →

Sync Protocols

May 1, 2026 · 5 min read

7-Day vs. 7n7 CIDR for ET Recipients: What Changed When I Switched

Two seasons on the 7-day CIDR, decent conception rates, and then a switch. Here is the mechanistic reason the 7n7 synchronizes tighter and what actually changed in my numbers.

ETSync ProtocolsRecipientsRead →

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