Knowby
Dairy Systems

Link Knowby Young calf - Blood in Calf Scours
1
Step 1 of 4A small amount of blood is not uncommon and should be monitored.
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Step 2 of 4Combined with ill health it is a concern.
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Step 3 of 4
Usually from:
Salmonella
Coronavirus (rare)
Coccidia
But this sounds most likely to be Salmonella due to the age of the calf.
NOTE E. coli in severe forms can cause some blood from 4-5 days of age.
4
Step 4 of 4The temperature is high (40 plus)
Can cause respiratory symptoms as well (breathing above 50 per minute)
Calf aged between 3 and 14 days