HI , I have a new born calf , that I am not sure if it has drank off of its mother . they both were out in pasture and as soon as we found the calf we tried to get it to drink but it just plays with the bottle and nipple . We bought a feeding tube and need some suggestions on how to use it . We are worried about dumping milk into the lungs . It has a bag attached on the end and a long tube with a blue ball at the end that goes into the calf's mouth .Any suggestions would be helpful . Thankyou.