Why will a bottle fed calf cough after drinking a bottle?

A bottle-fed calf may cough after drinking due to several reasons, such as drinking too quickly, which can cause milk to enter the trachea instead of the esophagus, leading to aspiration. Additionally, if the nipple hole is too large, it can overwhelm the calf, causing it to cough as it tries to clear its airway. Coughing can also be a sign of respiratory irritation or infection, so it's important to monitor the calf for any persistent symptoms.