How to Add a Litter
Register a new litter by recording birth date, counts by sex, and a litter tag tied to a parent mating. Moustra creates one animal record per pup from your counts and auto-calculates the wean date so downstream reports stay accurate.
Step-by-Step Instructions
Open the Litter page
Click Litter in the navigation menu to open the litter management page.
Start a new litter
Click Add litter at the top of the page to open the creation form.
Select the parent mating
A grid of matings appears. Use the checkbox to select one mating — this sets the litter's strain. Filter by Mating Tag, Cage Tag, or Strain if the list is long.
Pro Tip
You must pick a mating before the rest of the form unlocks.
Enter litter details
Use the sliders to set the number of Males, Females, and Unknown pups. Fill in the required Litter Tag. Date of Birth defaults to today; Wean Date auto-calculates to 21 days later. Pick an Owner and add any Comments.
Pro Tip
Wean Date and Tail Date auto-fill from the strain's **Wean Age** and **Tail Age** (or lab defaults if the strain doesn't override). Changing the **Strain** or **Date of Birth** recomputes both — you can still override either field manually if your protocol differs.
Save the litter
Click Save to create the litter. Moustra generates one animal record per pup based on the counts you entered.