---
title: DNB (Do Not Breed) Event
slug: pl-check-links/dnb-do-not-breed-event
docTags: 
createdAt: 2026-02-23T07:45:12.383Z
---

The DNB event identifies an animal as "Do Not Breed" to keep it from all breeding activity. This event is also automatically added to heifer calves born as a twin or triplet to a bull (freemartin). Expand the sections below to learn more:

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## Event Guidelines

Use the mobile app or the web version of PULSE to enter events! Tap Events in the [mobile app](docId\:LrbWjLC6pBiEQt-JRs1XB) to get started, or see [Add Events](docId\:e-WCEtRy4dtmIOd-iy-k4) to learn more about adding events from web. PULSE supports adding events that have occurred within the last year.

The app will not allow you to add pregnant animals to this event, and it will warn you before allowing you to add animals that are in BRED status or are already in DNB status.
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:::ExpandableHeading
## Process Changes

When you add events from web or the mobile app, your updates are sent to PULSE and then on to DairyComp 305 for DairyComp Unlimiteddairies (WiFi or data connection required).

When the updates are received, anDNB event is added for each completed animal with the EDAY as the date the event was completed in the mobile app.
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[\< Return to EVENTs Overview](docId\:e-WCEtRy4dtmIOd-iy-k4)