Cydroxo Double Acting Vitamin B12 10 ml Injection Gamecock Apparel And Supplies Dr. Blues B12 1000mcg, 3000mcg and 5000mcg for Gamefowl or fighting cocks. A universally used nutritional supplement in the pointing and conditioning of cocks and stags. Dosage and Administration: 1 4 to 1 2 Poultry Energy Recovery Supplement Super B12 5500 With Iron 60 Ml Liquid Vitamin B12 Supplement For Poultry, Chickens, Roosters & Gamefowl Nutri Vet XL Puppy Vitamins & Supplements Vitamin B 12 Injection, 3,000 mcg mL 100 mL Vitamin B12 Plus Iron for Poultry Liquid Supplement 500ml Biovet Pharma