The nutritional value of green onions contains 0.05 mg of vitamin A, 20.20 mg of vitamin C, 2.4 g of protein, 0.3 g of fat, 9.8 g of carbohydrate (including 8.6 g of total sugar), and 4.6 g of calcium per 100 g of onion stems and leaves. Phosphorus 3.9 grams, iron 0.1 mg, a variety of amino acids 0.0298 mg, very rich in nutritional value. Tests on application of welsh onion in chickens showed that the discarded fresh green onion leaves were cut short and dried, then processed into powder, and 1%, 2%, and 3% of wheat bran was added to the basic diet of laying hens to add the same proportion. The green onion leaf powder resulted in an increase in economic benefits of 18.39%, 28.26% and 29.1%, respectively, due to an increase in the egg production rate, an increase in egg weight, an increase in feed utilization, and a decrease in the mortality rate. From this point of view, green onion leaf meal feeding chickens have a strong attractant (embodied in the increase in feed intake of chickens) and seasoning (in the hot season, the feed intake of chickens continues to increase), coupled with nutrient-rich, cost Low cost, no sequelae, is a green feed additive worth developing.
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