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1.苜蓿 Whole-grass system for dry powder application, containing 250 mg of lutein, 30 mg of lutein, 200 mg of zeaxanthin and 320 mg of carotenoids per kilogram. Add 5% of alfalfa meal to the diet, and increase the level of egg-yellow from level 1 to level 4. Chickens and ducks are available.
2. Ryegrass, a rye grass that was castrated during the jointing stage, contained 200 mg to 343 g of carotenoid per kg of dry powder. Adding 5% of ryegrass powder to the hen's diet will increase the level of egg yolk from grade 6-7 to grade 11. Duck duck can refer to applications.
3. Polymeric grass is used as a dry powder and contains more crude protein than alfalfa. The addition of 5% polymer grass powder to the diet can increase the egg yellow level by 6 levels. Chickens and ducks are available.
4. Yellow maize corn kernels were practically crushed and used 30 mg of carotenoids per kilogram. In the compound feed, the yellow rice flour accounts for 60%, and the yellow egg color can be increased from level 1 to level 8. Chickens and ducks are available.
5. Carrots contain 492 mg of carotene and 527 mg of lutein per kilogram of carrot. Adding 20% ​​fresh carrots to the diet can significantly increase the egg-yellow level. Chickens and ducks are available.
6. Pumpkin is a succulent feed containing 65 mg of carotene per kilogram and more lutein. Appropriate feeding can effectively increase the egg-yellow level. Chickens and ducks are available.
7. Green Locust Leaf Locust System is used for dry powder applications. It is rich in lutein, chlorophyll and vitamin A. Adding 5% Locust leaf powder to the diet can increase the egg yellow color from grade 1 to grade 9. Chickens and ducks are available.
8. Wild leek can be applied to a variety of leek, moderate feeding can make the egg yellow apricot or orange. Chickens and ducks are available.
9. Fishmeal and cod fish meal contain more shrimp red pigment and alfalfa grass. When fed in appropriate amounts, the egg-yolk coloring effect can reach 3 "+" signs. Chickens, ducks and geese are available.
Making chickens and ducks produce "red heart" feed
Eggs with dark yellow, dark red and orange red color are called "red eggs". Production of "red eggs" can not only meet the needs of domestic consumers, but also meet the needs of exports. At present, chicken, duck export regulations, egg yellow Ze reached "8" in line with international standards. The egg-yellow grade is divided into 15 grades from light to dark, with light color grades and dark color grades. Egg-yellow grade can be improved by feed. The method is now described as follows: