RedBarn Naturals Barky Barks, natural Beef Esophagus are roasted in their natural juices. Highly palatable, this treat becomes chewy when wet, helps keep teeth clean and provides hours of long lasting enjoyment.Ingredients Beef Esophagus Guaranteed Analysis Crude Protein (Min) 50% Crude Fat (Min) 10% Crude Fiber (Max) 2% Moisture (Max) 12% Feeding Give 1 daily. Meant to be fed as a treat and not a source of nutrition.