Friendly advice needed.
We have 5 bottle lambs. 4 of them are thriving. But 1 ram lamb is lethargic, weaker and seems to be struggling to take his milk. He is keen to feed and is hungry, but takes about 10 sips from the bottle and has to rest. He will take more milk but very slowly. They are all feed Lamlac, Wynnstay own brand milk. He has a bit of a runny bottom which is very smelly and gurgle noises in his belly after feeding. Do I need to change his milk? I have already tried changing bottles and teats but no change. All advice welcome. Thanks