Broad prospects for the development of seaweed feed additives (11.23)

OA show ('918 '); seaweed is a kind of self propagating plant in the ocean, which can carry out photosynthesis and transform inorganic matter into organic matter Seaweed powder is widely used as feed additive in some developed countries Seaweed has high nutritional value, including 8% - 12% of crude protein, up to 17%, 30% - 60% of nitrogen-free organic matter, mainly seaweed glue, starch, mannitol, cellulose, etc.; it contains 20% - 30% of various minerals, mainly potassium, sodium, magnesium, strontium iodine, cobalt, phosphorus, manganese, zinc, selenium, etc., in which iodine content accounts for 0.4% - 0.7%, and vitamin A, vitamin C, and life support Vitamin E, vitamin B1, vitamin B2, vitamin B12 and other vitamins also contain many active substances that can promote the growth of animals The experiment shows that seaweed has no side effects on livestock and poultry Adding seaweed to the diet of livestock and poultry can not only improve the nutritional structure of feed, but also improve the utilization rate of feed, so as to improve the growth performance of livestock and poultry, improve the quality of livestock and poultry products, and enhance the resistance to disease and stress of livestock and poultry Adding 5% seaweed powder to the diet of dairy cows can promote the intake and increase the milk yield by more than 6% The iodine content in milk is increased significantly, which improves the nutritional value of milk The reproductive organ diseases and breast diseases of dairy cows are significantly reduced, and the fertility rate of breeding is increased Adding 4% seaweed powder to the feed of suckling pigs can increase the milk yield by more than 8%, increase the live piglet rate, accelerate the growth and development of piglets, and increase the weaning weight Adding 2% to 3% seaweed powder to the diet of finishing pigs can increase the daily gain by 18%, save 2% to 4% of the concentrate, and achieve 3.2 to 3.1:1 ratio of raw material to meat, which can reduce the incidence rate of pigs When 2% seaweed powder was added to the diet of broilers, the growth rate of broilers increased by 15% - 20%, feed conversion rate increased by 12.5% - 15%, and the mortality rate of broilers decreased significantly Adding 3% seaweed powder to the layer feed can not only improve the feed conversion rate, but also save the concentrate, increase the laying rate by 7%, reduce the breaking rate by about 5%, and significantly reduce the feed cost Due to the high iodine content of seaweed powder, adding 5% seaweed powder to the diet of laying hens can produce high iodine eggs, which can significantly increase the economic benefits of chicken raising China has a vast sea area and a long coastline, rich in seaweed resources At present, there are more than 1000 species of seaweed found, including more than 100 species of economic value, and the output is very large, which is a kind of feed resource with broad development prospects China feed industry information network fux (author:)