🗓️ Gestation & Calving Calendar
Estimate calving date, dry-off timing, and critical dates from breeding date
What Does This Tool Do?
The Gestation & Calving Calendar calculates the estimated calving date, dry-off timing, and critical milestones based on the breeding date.
Breed-specific gestation periods are used for cattle, sheep, and goats. Veterinary check dates and nutrition periods are calculated automatically.
Frequently Asked Questions
The average gestation period in cows is 283 days (~9.5 months). It varies by breed from 275-295 days. Holstein averages 279, Simmental 287 days. Male calves may have slightly longer gestations.
The average gestation period in sheep is 150 days (5 months). Varies by breed from 144-155 days. Twin pregnancies may be slightly shorter. Goats gestate for 150-155 days.
Dairy cows should be dried off 60 days before the estimated calving date. This period is critical for mammary tissue regeneration and the next lactation. A short dry period (<40 days) can reduce milk yield in the next lactation by 10-15%.