Niacin is vitamin B5. In general, niacin can be synthesized from microorganisms in the rumen of dairy cows without the need to add extra to the feed. However, the demand for niacin in dairy cows at the early stage of lactation is higher than at any other time. The niacin synthesized by itself cannot meet its physiological needs. If it is not given in time, it will affect its milk production and even cause ketones in dairy cows. disease. The time for niacin supplementation in early lactation should start from the second week of milk production and continue until the 12th week after delivery. The amount of supplementation is preferably 5 to 13 grams per cow per day. For cows already suffering from ketosis, the amount of niacin should be increased. Each person should be supplemented with about 16 grams per day. Even for a few days, the disease should be reduced after the disease is improved. In addition, feeding 5 grams of niacin to the cows in the fall can increase the milk production, especially for cows with over-fertilization. Silicone Lamp,Kids Night Light,Colorful Silicone Lamp,Rechargeable Silicone Lamp Yuyao Flylit Appliance Co.,Ltd , https://www.yyflylit.com