Environmental factors I. Long-term water shortage. Second, bad weather attack. Third, a serious shortage of ventilation, long ventilation and so on. Fourth, the light program or light intensity changes: If you change the color of light at any time, suddenly stop the light, the illumination time is shortened, the light intensity is weakened, the light time is irregular, and the length of time suddenly, suddenly too late, suddenly stop, forget Turn off lights and so on.
Feed factors There are significant changes in feed ingredients or quality problems in the diet, which can lead to changes in egg production.
Acute and chronic infectious diseases in chickens can cause a sudden drop in egg production in chickens. For example, when chickens are attacked by virulent newcastle disease, egg production is often reduced by more than 50%. Egg infection syndrome can reduce the egg production rate by 20%-40%. For example, if the chicken is mixed with other diseases, the egg production rate is reduced by 20%. the above.
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