Dehydrated lamb trachea (often called "Lamb Tubes" or "Lanolin Tubes") is a popular alternative to beef trachea. It is particularly valued for being a novel protein, making it ideal for dogs with common food sensitivities to beef or chicken.
Compared to pig ears, lamb trachea is even richer in joint-supporting compounds but can be significantly higher in fat depending on how it's trimmed.
Joint Support (The Big Winner): Trachea is essentially a tube of cartilage. It is one of the best natural sources of Glucosamine and Chondroitin, which are the building blocks of healthy joints.
Dental Hygiene: The "ridged" texture of the trachea acts like a natural toothbrush. As the dog chews, it helps scrape away plaque and tartar from the gumline.
Novel Protein: Since many dogs have allergies to beef or chicken, lamb is an excellent "safe" alternative for sensitive stomachs and itchy skin.
Lamb trachea is unique because it is almost entirely cartilage.
These values are the standard industry averages for air-dried or dehydrated lamb trachea
 
Nutrient
Requirement
Average Value
Crude Protein
Minimum
35.0% – 55.0%
Crude Fat
Minimum
20.0% – 45.0%
Crude Fiber
Maximum
1.0% – 4.0%
Moisture
Maximum
8.0% – 10.0%