Spring is the season of laying eggs for chickens. During this period, it is necessary to add enough mineral feed such as bone powder, stone powder and shell powder to the chicken feed to meet the needs of chickens for laying eggs. But it does not mean that calcium supplementation can be achieved by adding mineral feed to chicken feed. In order to obtain the desired effect, it is best to add 5%~10% of high-quality hay powder (the best hay flour) to the chicken feed, because it contains more vitamins in the quality hay powder. D. Vitamin D can promote the absorption of calcium and phosphorus, and plays a role in regulating the ratio of calcium to phosphorus. When the laying hen lacks vitamin D, the absorption of calcium and phosphorus will be hindered. Even if the bone feed, stone powder, shell powder and other mineral feeds are added to the chicken feed, the chicken will develop rickets and soft shell eggs. Therefore, adding appropriate amount of high-quality hay powder to the laying hens is extremely beneficial to the laying of eggs and health, and can also save feed and reduce the cost of feeding. In addition to paying attention to the addition of hay powder to the laying hens, it is also important to pay attention to the litter. Because sunlight can promote the synthesis of vitamin D, enhance the ability of chickens to absorb and utilize calcium and phosphorus. Best Reciprocating Saw,Cordless Sawzall,Reciprocating Saws,Electric Reciprocating Saw Suzhou ZhaoCheng lithium technology Co., Ltd. , https://www.scans-tools.com