Yes. Beef is a fat-rich protein that works well as the muscle-meat base (70% of the ration in classic BARF, per Dr. Billinghurst's methodology). Rotate protein sources across the week — ideally 3–4 different proteins — for complete amino-acid and micronutrient coverage. Introduce each new protein gradually over 3–5 days to monitor for any digestive sensitivity.

Aim for 10% of the daily ration as raw meaty bones — roughly 138 g per day for an adult Great Pyrenees. Choose raw bones sized to the dog's jaw and never feed cooked bones (they splinter into dangerous shards). As recommended by FEDIAF, raw meaty bones provide calcium and phosphorus in a naturally balanced 1.2:1 ratio.

Large breeds like the Great Pyrenees are predisposed to joint issues (dysplasia, arthritis). BARF helps naturally: raw meaty bones provide cartilage (a natural source of glucosamine and chondroitin) and oily fish delivers anti-inflammatory omega-3s. For large-breed puppies, control growth by limiting the ration to 3–4% of body weight — caloric excess accelerates too-rapid growth, as recommended by FEDIAF guidelines.

Beef is iron-rich and provides essential BARF organs: liver (5% of the ration per NRC 2006 guidelines) and heart, which is rich in taurine. Trim excess visible fat from muscle-meat cuts. Cheeks, chuck, and flank make excellent bases. Add kidneys once a week for vitamin B12 and selenium. Rotate with other red meats to ensure complete micronutrient coverage.

Beef is a fat-rich protein — thaw it completely in the refrigerator and serve at room temperature for better digestibility. Fats oxidize faster, so consume within 24 hours of thawing. Frozen at -18°C, beef keeps 2–3 months without significant nutrient loss. Pre-portion into individual bags to streamline daily meal prep and avoid repeated freeze-thaw cycles.