Seen mostly in lactating beef cows in winter and early spring, grass tetany can lead to the death of most clinically affected animals. The disorder is associated with low levels of magnesium in the blood.
Sheep body lice (Bovicola ovis) are biting insects that cause affected animals to become itchy. Lice are a common problem, but most importantly are controllable, eradicable and preventable.
Blackleg, pulpy kidney (enterotoxaemia), black disease, tetanus, and malignant oedema are common causes of death in unvaccinated sheep and cattle. Other animals, particularly goats, are also susceptible.
The term "lumpy jaw" brings to mind the grossly distorted head and wasted body of a suffering animal. True "lumpy jaw" refers specifically to a condition called Actinomycosis, but in cattle there are other causes of swollen, lumpy jaws.
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