If you are sourcing animal protein raw material for feed, you have likely come across two products that sound almost identical but are fundamentally different ingredients: frozen meat and bone and meat and bone meal (MBM). Both originate from the same place — animal by-products from slaughter processing — but they differ in how they’re processed, how they’re stored, what they cost, and what they’re suited for.
What Frozen Meat and Bone Actually Is
Frozen meat and bone is raw, unprocessed material — intact animal bones with natural meat tissue still attached. The raw material comes directly from slaughterhouse by-products: trimmings, bone-in cuts, and connective tissue that retain their original structure. Unlike meat and bone meal, this product has not been through rendering — no cooking, no fat separation, no grinding into powder. It is simply cleaned, sized, and frozen to preserve it in essentially its natural state.
Because nothing has been extracted or broken down, frozen meat and bone retains its natural fat content, full amino acid profile, and the physical bone structure intact. It contains natural crude protein, calcium, phosphorus, and a range of essential amino acids, with no artificial additives blended in.
This is a fundamentally different category of ingredient from MBM — closer to a raw meat product than a processed feed meal.
What Meat and Bone Meal Actually Is
MBM is the end product of the rendering process. Production involves crushing the raw flesh, bone, tissue, and organs, cooking the material to separate the fat, pressing the mixture to complete fat separation, and grinding the resulting protein cake into a meal. The finished product is typically 48–52% protein, 33–35% ash, 8–12% fat, and 4–7% moisture.
Heat treatment during rendering is necessary specifically to eliminate hazardous microorganisms in the raw material before it becomes a stable, shelf-stored feed ingredient. This is the core distinction: MBM is designed to be a dry, stable, long-shelf-life commodity. Frozen meat and bone is designed to preserve the raw material in close to its natural form, relying on cold storage rather than processing for stability.
Side-by-Side Comparison
| Frozen Meat and Bone | Meat and Bone Meal (MBM) | |
|---|---|---|
| Processing | Raw, unprocessed, frozen | Cooked, pressed, dried, ground |
| Form | Intact bone with attached meat tissue | Dry powder/meal |
| Fat content | Natural fat retained | 8–12% (most extracted during rendering) |
| Protein content | Variable, retains natural tissue protein | 48–52% |
| Storage | Requires continuous cold chain (frozen) | Stable at ambient temperature |
| Shelf life | Limited; frozen storage required throughout | Long-term storage possible, though fat can become rancid over time |
| Shipping | Requires refrigerated/frozen logistics | Standard dry bulk shipping |
| Typical buyers | Pet food (raw/BARF diets), exotic animal feeding, zoo and specialty feeding | Livestock feed mills, poultry feed, aquaculture feed, pet food manufacturers |
Why the Difference Matters for Your Application
Nutritional Character
Frozen meat and bone retains the natural composition of the original tissue — including fats, moisture, and the full amino acid spectrum, since nothing has been thermally processed or extracted. This makes it closer in nutritional character to a fresh or raw ingredient.
MBM, by contrast, has had much of its fat removed during rendering and has been concentrated into a high-protein, high-mineral dry meal. The protein fraction in MBM has high digestibility, typically ranging from 81 to 87%, and provides a highly available source of calcium and phosphorus. But excessive heating during processing can reduce the digestibility of that protein fraction — a quality risk that doesn’t exist for unprocessed frozen material in the same way.
Logistics and Storage Cost
This is often the deciding factor for buyers. Frozen meat and bone requires an unbroken cold chain from production through storage to end use — meaning refrigerated transport, frozen warehouse capacity, and faster inventory turnover. Any break in the cold chain risks spoilage.
MBM’s dry, stable form is precisely why rendering became the dominant method for using slaughterhouse by-products at scale: it converts a perishable raw material into a shelf-stable commodity that can be stored, shipped internationally in standard bulk containers, and held in inventory for extended periods without specialized infrastructure. That said, long-term storage of MBM is not unlimited — the fat content can become rancid with prolonged storage, so rotation practices still matter.
End-Use Suitability
Frozen meat and bone is most relevant for:
- Raw pet food and BARF (Biologically Appropriate Raw Food) diet manufacturers
- Exotic animal and zoo feeding programs where natural, whole-prey-style feeding is preferred
- Specialty livestock and aquaculture operations sourcing fresh-frozen protein rather than processed meal
Meat and bone meal is most relevant for:
- Livestock and poultry feed formulations requiring a concentrated, stable protein and mineral source
- Aquaculture feed, where MBM serves as a protein-rich ingredient supporting growth in farmed fish
- Large-scale commercial feed mills that need a dry ingredient compatible with standard feed mixing and pelleting equipment
- Dry pet food (kibble) manufacturing, where MBM is widely used as a low-cost animal protein source
Regulatory Considerations
Both products carry regulatory considerations, but they differ in nature.
For MBM: Feeding restrictions exist in many countries due to the role of MBM in the historical BSE crisis, and many jurisdictions only permit MBM from monogastric animals to be fed to ruminants, or vice versa. Proper heat treatment during rendering is required in markets where MBM is authorized for use, specifically to control the spread of BSE and other disease agents such as Salmonella. Buyers should always confirm species-of-origin documentation and verify the product complies with destination-market feed regulations.
For frozen meat and bone: Because the material has not been heat-processed, sourcing controls focus more heavily on raw material traceability, slaughter facility hygiene certification, and unbroken cold chain documentation from origin to delivery. Import requirements for raw animal by-products are typically more stringent than for processed, heat-treated meals like MBM, since the absence of a sterilization step shifts the safety burden onto sourcing and handling controls.
Grace Global Importer supplies both frozen meat and bone raw material and meat and bone meal for feed and pet food applications. Contact our team to discuss specifications, documentation, and supply volumes.