These are Cooked Jumbo Shrimp - Meant To Be Cocktail Shrimp.  

Freeze-dried cooked shrimp.  These make perfect high value treat.  They can be easily broken into several pieces to use as high value training treats.   

Ingredient: Cooked Shrimp - Guaranteed Analysis: crude protein (min) 78%, crude fat (min) 2% crude fiber (max) 1%, moisture (max) 5%

 3139 Calories per kg 

Each Jumbo Shrimp = .004 kg = 1.5-2.0 Calories Per Jumbo Shrimp