When admitting new patients it is important to assess nutritional status so that, if indicated, nutritional support can be started in timely manner.The main goal is not only to detect malnourished patients, but also to detect those whom nutritional intervention can help with a positive treatment outcome. Assisted feeding is used if the animal refuses to take food voluntarily or does not consume enough food to meet resting energy requirements. Nasoesophageal and nasogastric feeding tubes are tubes that are recommended when there is a short-term need for nutritional support or in the time period between stabilization of the patient and placement of the long-term feeding tubes. The main advantages of these feeding tubes are ease of placement, cost-effectiveness and the possibility of placement without the need for general anesthesia. After placing the tube, as well as before each feeding, it is important to check the correct positioning of the tube so that the tracheal intubation doesn't occur. Possible complications include epistaxis, rhinitis, dacryocystitis, tube obstruction, aspiration pneumonia, reflux esophagitis, tube displacement and tracheal intubation due to tube misplacement or accidental tube dislodgement. Polymeric liquid diets are the first choice for feeding through these tubes due to their narrow lumen, but it is also possible to use commercial semi-liquid foods (cans) if they are adequately diluted. The choice of diet depends on the individual needs of each animal, their health and nutritional status and on the primary disease.