Method for manufacturing organic fertilizer

A method for manufacturing an organic fertilizer product, the method comprising:

• providing a composition of fresh animal tissue comprising muscle, bone, blood, and organ tissue from one or more animal carcasses;
• providing a composition of fresh biomass containing substantially no animal tissue;
• drying the biomass composition to a moisture content of about 25% by weight or less;
• combining the dried biomass composition with the animal tissue composition in a ratio of from about 1:1 to about 3:1 by volume to form a substantially homogeneous base mixture;
• reducing the particle size of the base mixture;
• subjecting the base mixture to a thermal stabilization process;
• and
• dehydrating the base mixture to produce an organic fertilizer having a moisture content of about 15% or less, a carbon to nitrogen ratio of about 25:1 or less, and a total nitrogen content of from about 3% to about 6% by weight, wherein from about 80% to about 95% the total nitrogen is organic nitrogen, and from about 5% to about 20% of the total nitrogen is plant-available nitrogen.