Kelp is rich in iodide, minerals and vitamins as well as a variety of "unknown growth factors", which is not only a favorite nutrient health food but also a good feed additive for poultry. Feeding chickens with 5% kelp powder in the hen diet can increase the fertilization rate of the eggs by 28% and the hatching rate by 14%. Adding 2% to 6% of the kelp powder to the feed of the hens can increase the productivity. The egg rate increased by 6.26% to 14.38%, and the iodine content of egg yolk increased by 7.29% to 19.57%. According to another report, the addition of 2% to 4% kelp powder to the black phoenix chicken diet can increase the survival rate of chicks by 10% and increase the weight of 280 grams at 10 weeks of age. Ducks fed 2% to 4% kelp powder to the ducklings in the diet can increase the survival rate by 6% to 9.6%. The 7-week-old body weight increased by 204 to 263 grams, and the feed conversion rate increased significantly. Adding 3% of seaweed powder to the grain can increase the survival rate of ducklings by 8%. Adding 5% of kelp powder to quail feed can increase the egg production rate by 5.1%, the mortality rate by 0.7%, the secondary egg rate by 2.3%, and deepen the egg yellow color. Adding 5% seaweed powder to quail feed can increase the egg production rate by 8%, the mortality rate by 10%, and the secondary egg rate by 8%.
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