Adjust feed formulation. In actual production, the peak of egg production for high-yielding chickens can last more than 4 months, and high-level feed nutrition should extend the maintenance time appropriately. After that, the use of high-protein feed should be reduced according to the decrease of egg production rate to avoid nutrient waste. When the flock is immunized, divided into groups, transferred to groups, and cut off, the vitamin content and protein level in the feed may be appropriately increased. Feed less to add ground. Each time feeding does not exceed one-third of the feeding trough, try to allow the chicken to feed the feed in the trough before feeding, to prevent moldy deterioration of the remaining feed.

Timely and correct failure. Tests have shown that cutting off chickens saves about 6% of the feed compared to continuously feeding chickens. Experienced workers can be arranged to break their eggs at 7-9 days of age.

Elimination of bad individuals. Usually pay attention to the observation of chickens, found that diseased chickens, weak chickens, low-yielding chickens, chickens should be phased out. These chickens typically account for 3% to 5% of the total number of chickens. Each additional day of breeding consumes 100 grams per bird. Some chicken farmers are often not able to eliminate the determination, resulting in a waste of feed. The breeder must have a certain experience in raising chickens to eliminate the white chickens accurately: crowns, pale faces, hens with atrophic crowns and yellow legs should be singled out; the spacing between the phalanges of normal laying hens is more than 3 fingers. The distance between the phalanges and the sternum is more than 3 fingers. When the peak of egg production is over, some chicken finger bones are found to have a distance of less than 1.5 fingers, and less than 2 fingers are seen in the diaphragm. Overweight or overweight hens should be eliminated in time; the abdomen is enlarged and the abdominal cavity is accumulated Water or accumulated more fluids, hens walking inconvenience also must be eliminated.

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