Two new girls (around 16- 20 weeks old) - Silver Linked Ambers (bred for egg production I understand). Had them around 6 weeks now. They eat loads of food (layers pellets - particularly if mashed with water), drinks loads and poo loads(very wet and including some runny brown). They lay, they run around and yet are as skinny as anything. At end of day - crop feels full - if a little watery (not sour crop - no smell etc.). Keel bone very prominent and not getting any better. Been to vets, wormed with Flubenvet, treated for Coccidosis (Baycox). Talked to seller who has sent off faecal samples - result = no excessive worm load. I am at a loss as to know what to do. They have mixed with my other girls (bantams) for around 4 weeks now and none are ill or have any symptoms. They look well, wattles and combs nice and red and firm - but I have never encountered girls with such appetites (seem to be starving all the time) or with such throughput (I need to clean around the area a couple of times per day. Any ideas anyone?