birth date span

[xbred]

what would you say is a reasonable time frame of delivery from a known breeding date...i've always heard a week either way...is 2 weeks unheard of?

 

[dun]

Based on a known breeding date, 14 days either side is considered normal

 

[xbred]

that makes me feel a little better..AI cows last spring..due date was Feb 6..1 cow calved a week early with twins, one today, and last 3 are springing heavy.