I could do with some advice asap please. We have 11 orphan lambs on the farm of varying ages, the 8 youngest are 4 months old, oldest about 6 months. 6 belong to my boyfriend and I, the other 5 to his sister. Bit of background, our 6 were all jabbed twice with Heptavac and been lamlac reared creep fed, now out on grass with creep offered every other day. The other 5 were not Heptavac'd, been fed mixture of corn and some creep and reared predominantly on cow milk replacer and now out at grass with no creep.
All are eating and drinking well, the 6 that were reared on lamlac and jabbed are thriving compared to the other 5 that are taking a bit longer to mature. Unbeknown to me the 2 lambs boyfriend's sister had last year had liver fluke according to the slaughterer, I only found that out yesterday. They all seem breathless though when we bring them in even when it's not hot, and someone has suggested treating for liver fluke and broad spectrum wormer.
What's the best course of action please?