I have a week old lamb. Lambed outside. Always thinner than its twin. Not much get up and go. Saw it peeing so assumed it must be getting something but just isn’t right. Seems lethargic. I’ve checked the ewe has milk. Lamb will go to the teat but no enthusiasm. The lamb’s temperature is around the late 38 degrees/39. I spoke to the vet who said to bring the lamb in and put under heat as wet weather prob not helping. Also to give dose of metacam. I’ve been trying to get it to take from a bottle, to top up whatever it is (or rather isn’t) getting from the ewe but although it seems strong in the mouth, and it feels like it sucks, it won’t drink from the bottle. I’m losing a bit of hope for it. Can you tube feed older lambs? Just thinking if I could get something in its tummy it would help??