Pregnant ewes get their CD&T shot 2 to 4 weeks before lambing. Lambs of a vaccinated ewe get their first CD&T by 6 to 8 weeks of age and a booster 3 to 4 weeks later; lambs of a ewe that was not vaccinated start at 3 to 4 weeks.
When, never how much: the dose and the product are your vet’s and the label’s. Your vet’s plan wins.
Your lambing date
When is (or was) the lambing? Her due date works too.
Lambing date
Example dates, from lambing on Monday, March 1, 2027. Pick your date for yours.
When each step falls
Pregnant ewes
CD&T (Clostridium perfringens types C and D, and tetanus): 2 to 4 weeks before lambing — Ohio State’s sheep team finds one month before easiest.
Mon, Feb 1, 2027 to Mon, Feb 15, 2027
First-time ewes
CD&T, twice: 6 weeks and 3 weeks before lambing.
Mon, Jan 18, 2027 and Mon, Feb 8, 2027
Lambs of a vaccinated ewe
Their first CD&T: by 6 to 8 weeks of age (Ohio State: 4 to 8 weeks).
Mon, Apr 12, 2027 to Mon, Apr 26, 2027
Lambs of a vaccinated ewe
Their CD&T booster: 3 to 4 weeks after the first.
Mon, May 3, 2027 to Mon, May 24, 2027
Lambs of a ewe that was not vaccinated
Their first CD&T: at 3 to 4 weeks of age (Ohio State starts them in their first week of life).
Mon, Mar 22, 2027 to Mon, Mar 29, 2027
Lambs of a ewe that was not vaccinated
Their CD&T booster: 3 to 4 weeks after the first.
Mon, Apr 12, 2027 to Mon, Apr 26, 2027
Rams
A CD&T booster: before breeding.
Rams, wethers and ewes
A CD&T booster: once a year.
When, never how much: the dose and the product are your vet’s and the label’s. Your vet’s plan wins.
Remembers every animal’s due date and reminds you before each job — the pregnancy check, the pen, the watch. The iPhone app is coming soon to the App Store.
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