When the calf is not vaccinated for Clostridium spp.. The bacteria are ingested, pass through the wall of the GI tract, and after gaining access to the bloodstream through capillaries joined to the GI tract, are then deposited in muscle and other tissues.
Pretty much anything, but the two most likely reasons could be blackleg and scouring. You better get your vet out to do a necropsy on the calf, as if it is blackleg, you better get those calves vaccinated for blackleg ASAP.
It is generally not recommended to vaccinate a 2-week-old calf for blackleg. Most vaccines for blackleg are typically administered when calves are older, usually around 2 to 4 months of age, to ensure an effective immune response. However, consult with a veterinarian for specific recommendations based on the calf's health and the herd's vaccination program.
Blackleg. There may also be a bacterial strain of pneumonia that could kill a calf in less than 24 hours, but Blackleg is most likely the prime suspect.
There is a vaccination that is administered while they are a calf. Also, if you find your pasture is infected with blackleg, burning it may help to destroy the spores.
There really isn't a treatment for Blackleg, since it is a highly fatal disease, except for giving the calf massive doses of penicillin or tetracyclines when the disease is in the early stages. This will sometimes help, though most cases the calf perishes anyway, and those calves that do get blackleg will die before you have a chance of knowing that they even got it.The best thing to do is to have a prevention program against blackleg in your herd. This means vaccinations; the recommendation is to vaccinate all calves that are about 3 to 4 months of age, followed by a second shot or booster vaccination when they are 12 months of age. In endemic areas (or areas where the bacteria Clostridia chauvoei are highly prominent), calves should be vaccinated when they are about 1 month of age. A natural resistance tends to develop when they reach 2 years old.
Vaccination is the best way to prevent blackleg.
A blackleg is a person who takes the place of striking workers, a person who cheats, or a notorious gambler.
Clostridium chauvoei
Nope, it's infectious, but not contagious.
Usually most calves are vaccinated when they are a bit older than a day to two days of age. There's nothing that says you can't, however. You will need to revaccinate them when they are around 4 to 6 months of age.
Blackleg is primarily a disease affecting crops, particularly canola, caused by the pathogen Leptosphaeria maculans. While soil treatment is not a direct method for controlling blackleg, practices such as crop rotation, proper field drainage, and the use of resistant plant varieties can help manage its spread. Additionally, applying fungicides at the appropriate growth stages might be beneficial. Soil health management can also contribute to overall crop resilience against diseases like blackleg.
Michael F. Waldron has written: 'The blackleg'