Livestock Due Date Calendar
Plan your entire breeding season in one place. Enter breeding or egg-set dates for multiple animals across multiple species, and this tool builds a complete, automatically sorted due-date calendar for your farm.
Quick Answer
Add each animal's species and breeding (or egg-set) date below — the calendar calculates and sorts every expected due date automatically, covering cattle, goats, sheep, pigs, horses, rabbits, and common poultry.
Livestock Due Date Calendar
Free tool — no signup required
How to Use This Tool
Give each animal an optional name or tag for easy identification, select its species from the dropdown, and enter the breeding date (or the date eggs were set in an incubator for poultry). Click Add to Calendar, and the entry joins your running list, automatically sorted from soonest to furthest due date. Add as many animals across as many species as your farm needs — everything is saved in your browser so it's there the next time you check in.
How to Stagger Breeding for a Manageable Season
Staggering breeding dates spreads calving, kidding, or lambing out over several weeks rather than concentrating it all in one overwhelming window, giving you enough time and attention to properly monitor each birth, assist if needed, and manage newborns without being spread too thin. Many experienced producers deliberately breed animals in smaller batches roughly 1–3 weeks apart rather than turning the whole herd out with a sire simultaneously — a strategy this calendar makes easy to visualize and plan around.
Seasonal Considerations by Region
In colder climates, timing births to avoid the harshest winter weather (while still allowing enough time for young animals to grow before the following winter) is a major consideration — many producers target births in early-to-mid spring. In hot southern climates, avoiding the most extreme summer heat during late pregnancy and early nursing (a period of high metabolic demand) is often the bigger concern. Regional forage and pasture growth cycles also factor in, since birth timing ideally aligns with when nutrition-rich spring grass becomes available for nursing mothers.
How We Calculate Due Dates
Each entry uses the formula: Due Date = Breeding/Set Date + species' average gestation or incubation days. For a breed-specific estimate, see our dedicated calculators linked below.
Frequently Asked Questions
GestationCalc Editorial Team
Our editorial team includes animal husbandry specialists, veterinary consultants, and agricultural extension educators. Content is reviewed against peer-reviewed research and guidance from USDA, Penn State Extension, and the Merck Veterinary Manual.
Last reviewed: September 5, 2026