Why do we need to vaccinate ewes pre-lambing? Pre-lamb vaccination of ewes with Ultravac 5 in 1 is a very wise investment.  The main 5 clostridial diseases are tetanus, pulpy kidney (enterotoxaemia), black leg, black disease and malignant oedema. These are a constant threat to all sheep and cattle. Clostridial spores can last in the … Continue reading Pre-Lamb Vaccination Of Ewes