1. Eggshell calcium supplementation: Eggshell is a good calcium-added feed, but it is easy to deteriorate and carry bacteria. Laying hens eating such eggshells are prone to disease.
2. Sudden feed change: At present, most laying hen farmers generally use full-price compound feed, but some people immediately use new feed when they hear how good a certain feed is. As a result, the egg production rate has not increased, but has continued to decline; the reason is that chickens are accustomed to the feed they eat. If it is suddenly changed, it will affect the appetite and egg production of chickens.
3. Raw grain feeding: Some chicken farmers are accustomed to feeding chickens with raw grains such as corn, rice, and beans, which not only reduces the utilization rate of feed, but is also harmful to chickens; the raw grain should be crushed and then fed with bran, bean cake, bone meal, lime powder, etc. according to the formula.
4. Obesity: Obese laying hens have too much fat accumulation in their bodies, and their egg production drops sharply or stops. You can reduce feed by 10%-15% before laying eggs, or reduce concentrate feed by 8% to 14% after laying eggs, and supplement with roughage for prevention.
5. Calcium and phosphorus deficiency: Cage-raised laying hens are prone to calcium and phosphorus deficiency, which can cause rough eggshells or soft-shell eggs, or even paralysis and death due to unstable standing. You can add calcium powder or gypsum powder to the feed to prevent the disease.
6. Nutritional imbalance: Laying hens should avoid single nutrition and vitamin deficiency. They should pay attention to supplementing enough vitamin E after laying eggs to maintain the normal function of reproductive organs and prevent diseases such as prolapse caused by fallopian tube stenosis. In winter, when the temperature is low and the light is low, vitamin D should also be supplemented to prevent cage-raised laying hens from being unable to receive outdoor light and suffering from vitamin D deficiency.
