Lambing Calculator

Gestation in sheep varies from 142 to 152 days with the average being 147 days. Just like people, individual pregnancies can vary,  gestation periods of 138 to 159 days are not unheard of. Ewes carrying multiple lambs tend to have shorter gestations while male lambs (and heavy birth weight lambs) are usually carried for longer than female lambs. The form below calculates the lambing date based on a 147 day gestation period.
Lambing Due-Date Calculator:
Enter Date of Breeding:   
(MM/DD/YYYY format)
Expected Lambing Date:
Range of Lambing Dates:

Prohibit Calculator

I use the concentrated dose of 2 cc per 50 lbs. fill in the red cells on spreadsheet and it will tell you how many grams of prohibit to use with how many ounces of water.  Prohibit should last approx 90 days stored properly once mixed.  That is why I only mix what I expect to use in a 30-60 day time frame.  

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