Both are OK.

1. The spinal cord or bone marrow of sheep can nourish yin and marrow, and is used to treat aplastic anemia and leukopenia.

2. Bovine bone marrow is the bone marrow of bovine cattle or buffaloes. It contains fat, protein and calcium. The raw materials used in many bone-strengthening powder and calcium supplement products come from bovine bone marrow, which is a good natural product for supplementing calcium. , has the effects of nourishing the kidneys and marrow, moistening the lungs and replenishing deficiency, stopping bleeding and bandaging, relieving pain, and moisturizing the skin.