Gestation Calculation:
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The Select Sires Gestation Calculator estimates the due date for cattle based on the breeding date. It uses the standard gestation period of 283 days, which is the average for dairy and beef cattle.
The calculator uses the simple formula:
Where:
Explanation: The calculation adds exactly 283 days to the breeding date to estimate the calving date.
Details: Knowing the estimated calving date helps farmers prepare for birth, monitor the cow's health, and schedule veterinary care if needed.
Tips: Enter the exact breeding date in the format YYYY-MM-DD. The calculator will automatically add 283 days to provide the estimated due date.
Q1: Is 283 days accurate for all cattle?
A: While 283 days is the average, gestation can range from 279-287 days depending on breed, season, and other factors.
Q2: Should I rely solely on this calculation?
A: This provides an estimate. Always monitor your animals and consult with a veterinarian as the due date approaches.
Q3: Does this work for heifers vs. mature cows?
A: Heifers may have slightly shorter gestation periods (1-2 days less on average) than mature cows.
Q4: How does breed affect gestation length?
A: Dairy breeds average 279-283 days, while beef breeds average 283-285 days. Some continental breeds may go up to 289 days.
Q5: What if I don't know the exact breeding date?
A: If using AI, use the insemination date. For natural breeding, use the first exposure date and monitor closely.