The reason for the color of the egg yolk is shallow and the color enhancement method

The main reasons for the shallow egg yolk color are as follows: (1) One-sided increase in calcium content in the feed. Excessive calcium affects the deposition of pigments in the body, resulting in a lighter egg color. (2) Excessive levels of mycotoxin in the feed cause the decrease of pigment in the serum and affect the color of the egg yolk. (3) chickens suffering from coccidiosis, salmonellosis, Newcastle disease, intestinal parasites, etc., can also cause the egg yolk to lighten. (4) Adding an anthelmintic drug will affect the coloration of the egg yolk. (5) Feeding too much green fodder and too little fodder can also cause the egg yellow to become lighter.
Egg egg yolk color increase method: (1) reduce the content of white corn in the feed, try to feed yellow corn (feed corn). Under the premise of guaranteeing the performance of laying eggs, the content of vitamin A and calcium in the feed should be appropriately reduced. (2) Carrots and stems are fed, and the amount of feeding accounts for 5% to 10% of the total amount of the diet.

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