Scouring lamb

[clover]

What would cause this scouring?
Late Lamb born 3 May, chamois x mule/exlana. Mother is a ewe lamb
Treated with vecoxan last saturday along with the older lambs (but he was scouring prior to that)
Treated today with bymoxil and metacam
The only other lamb with similar symtoms died today.

 

[GreenerGrass]

At 13 days old too young for cocci or words and 9 days old is surely to young to drench also would be concerned on safety of that. What temperature is it, have you checked? My thinking is bacterial, but it’s a guess a temperature will give you a better idea..