7 June 1996

Calf scours could be salmonella…

BATCHES of calves that suffer prolonged scouring or fail to respond to normal scour treatments may have salmonella dublin, warns Dr Tony Andrews.

He advises taking samples of scour for analysis when groups of calves are affected. This will ensure they receive the right treatment quickly – although it will still take animals time to recover.

"Good husbandry is essential," he says. "Infected animals must be separated and given a clean bed with no draughts. They should be fed little and often, and encouraged to eat solid food when over two weeks of age. A multi-vitamin booster may help them."

Concentrated hygiene and disinfection are needed to stop a scours outbreak, in addition to finding the source of infection.

He also warns that salmonella dublin is infectious to other stock and humans. For this reason outbreaks must be reported to MAFF who will advise on its control.

&#8226 Hypomagnesaemia unless preventive measures taken.

&#8226 Foul-of-the-foot when wet.

&#8226 Need for fibre if lush grass.

&#8226 High condition scores in dry cows.

&#8226 Grass scours (in growing cattle).

&#8226 Ensure preventive programmes for parasitic bronchitis and gastroenteritis.

&#8226 Calf pneumonia if changing environmental conditions.

&#8226 Joint/navel ill in calves if indoor calving.


Calves with prolonged scouring or who fail to respond to normal treatments may have salmonella dublin, warns Dr Tony Andrews.