1. Create a suitable living environment for laying hens

In order for laying hens to produce more eggs, it is necessary to try to create a suitable growth and laying environment for the chickens, and to adopt corresponding supporting feeding and management measures according to the changing rules of different seasons. In the high temperature and high humidity season in summer, it is necessary to pay attention to heatstroke prevention and cooling, strengthen the ventilation in the house, maintain a dry environment and sanitation, provide sufficient and clean drinking water to the chickens, and appropriately increase the feeding amount of vegetables to improve the feed intake of chickens . In winter, special attention should be paid to the cold protection and heat preservation of the chicken house and artificial supplementary light. The temperature in the house should be maintained above 13°C, with 15-16 hours of light, and the drinking water should be properly warmed up, and cold water should not be drunk.

2. Pay attention to saving feed

The biggest expense of raising chickens is feed, which accounts for more than 70% of the entire cost of raising chickens. Improper feeding and management will inevitably cause a lot of waste of feed. The measures to reduce feed waste are: First, the installation height, depth, and length of the feed trough should be changed according to the age of the laying hens and the cage density, and the amount of feed added should not exceed 1/3 of the depth of the trough. It is necessary to feed less and more often, reduce the leftover food in the tank, and determine the daily feed amount according to the egg production rate. Generally, when the egg production rate is 50%-60%, the daily feeding amount of each chicken is about 95-100 grams, and the egg production rate is about 95-100 grams. When the egg production rate is 60%-70%, the daily feeding amount is 105-110 grams. When the egg production rate is 70%, the daily feeding amount of the chicken is 115-120 grams. When the egg production rate reaches more than 80%, the feed is not limited. Feed ad libitum. Second, beak trimming. Because chickens have the habit of planing food, the beaks of chicks should be trimmed at the age of 7-9 days. At about 15 weeks of age, beak trimming is required for those with poor beak trimming. Third, timely eliminate chickens that do not produce laying hens or have poor laying performance. When the breeding is completed and transferred to the laying house, it should be eliminated once. Those who are stunted, too small, too fat, sick, or lack of energy should be eliminated. During the egg production process, brooding chickens, sick chickens, disabled chickens, and discontinued chickens should be eliminated at any time. In the late stage of egg production, the out-of-production chickens are mainly eliminated. Hens with bearded crowns, pale faces, and shrunken crowns should be eliminated immediately. Chickens that are found to be too fat or too lean should also be eliminated immediately.

3. Reasons for the decline in egg production

Environmental factors: changes in light program or light intensity: such as changing light color at any time, suddenly stopping light, shortening light time, weakening light intensity, irregular light time, long and short, early and late, light and stop, night Forgot to turn off lights etc. Severely insufficient ventilation, no ventilation for a long time, etc. The attack of natural bad weather: not prepared or prevented in advance, suddenly hit by heat wave, typhoon or cold current. Long-term water cut-off: Due to the failure of the water supply system or forgetting to turn on the switch, the water supply is insufficient or cut off for a long time.

Feed factors: Significant changes in feed ingredients or quality problems in the diet can cause changes in egg production. Such as sudden changes in the types of raw materials in the diet, uneven feed mixing, moldy feed, replacement of fish meal and yeast powder, high salt content, high addition of stone powder, replacement of cooked bean cakes with raw bean cakes, forgetting to add salt to the feed, etc. It reduces the feed intake of chickens and causes indigestion. The egg production rate is normal, and the weight of the chicken does not decrease, indicating that the amount of feed and the nutritional standard provided meet the physiological needs of the chicken, and there is no need to change the feed formula.

Illness in chicken flocks: Acute and chronic infectious diseases will cause a sudden drop in egg production in chicken flocks. If chickens are attacked by virulent Newcastle disease, the egg production rate will often decrease by more than 50%; infection with egg drop syndrome can reduce the egg production rate by 20% to 40%, and if they are mixed with other diseases, the egg production rate will decrease by 20%. above. In addition, chicken flocks infected with infectious bronchitis, infectious laryngotracheitis, cholera, coccidiosis, E. coli disease, avian influenza, etc. will greatly reduce the egg production rate.

4. Disease prevention

Reducing dead chickens and eliminating epidemics is the key to success in raising chickens. According to the scientific health and epidemic prevention procedures for controlling the occurrence of chicken diseases, various vaccines should be injected according to the age of different chickens. At the same time, regular drug disinfection should be carried out on the chicken coop and utensils, and the feces in the coop should be removed in time. Rats, prevent rats and sparrows from entering the house and bringing in the epidemic. In order to reduce the chance of the spread of the epidemic, the entry and exit of personnel should be reduced as much as possible, strangers are not allowed to enter the chicken house, and visits are declined to ensure the safe operation of the chicken farm.

Ways to keep laying hens safe in summer

1. Adjust the diet. High temperature will cause the chickens to reduce their feed intake and lack of nutrition. Measures should be taken to stimulate more feed intake and increase the nutritional level of the diet to make up for the lack of nutrition. ①Increase dietary energy. About 2% vegetable oil can be added to the diet. ② Increase protein or amino acid levels. Feed intake is reduced by 10% to 15%, dietary protein intake is reduced, egg weight is reduced, and egg production is reduced, so protein should be supplemented to maintain a balanced diet. Appropriate addition of amino acids, especially methionine and lysine. ③Increase the supply of vitamins and minerals. You can use powerful quick supplement calcium hydrogen phosphate, high-quality bone powder or calcium granules, etc.

2. Ensure that the air in the house is fresh. When the temperature is high, the chicken mainly relies on breathing to dissipate heat. In addition, due to the thin feces and high humidity; the house is humid and hot, which is very unfavorable to laying hens. The amount of ventilation should be increased, and if necessary, sprinkle some lime into the septic tank after cleaning the dung every day to reduce the impact of high humidity to ensure that the air in the house is fresh and cool.

3. Adjust the feeding method. Feed more frequently in the cool morning and evening every day to stimulate the appetite of the chickens and let them eat more, but pay attention to avoid the accumulation of wet materials in the trough to avoid mildew and deterioration.

4. Sufficient clean and cool drinking water Supplying enough clean and cool drinking water can absorb part of the heat in the chicken body in hot weather, thereby achieving the purpose of cooling down. Therefore, fresh and cool drinking water should be kept in the water tank. (It should be noted: because the drinking water should be cut off before immunization during emergency epidemic prevention, which will add new stress to the chickens, so the spray immunization method can also be adopted.)

5. Appropriately extend the light time. In summer, the light time in the morning and evening can be extended appropriately to increase the feed intake of laying hens, but it should not exceed 17 hours.

6. Supplementing anti-heat stress nutrients and electrolytes High temperature will cause the discharge of sodium, potassium, carbonate and other ions in the chicken body, causing electrolyte imbalance. Sodium bicarbonate, potassium chloride, ammonium chloride should be supplemented, and zinc carbonate should also be added.

Insulation technical measures for disease prevention of laying hens in winter

Strengthen insulation and cold protection measures. The most suitable temperature for high-yield laying hens is 16-23°C. When the temperature is lower than 13°C, the egg production will drop significantly.

insulation measures

In winter, it is best to sit north and south in cages, and according to the situation, use stoves, fire walls, heating, plastic greenhouses, etc. to increase the temperature in the chicken house.

The laying hens are reared on the ground, and the temperature can be increased by increasing the stocking density or greenhouse. Keep the ground in the chicken house dry and clean. The chicken house must be tightly closed to prevent the intrusion of the cave wind, and pay attention to timely ventilation to keep the air in the house fresh.

The relative humidity of the air in the house is 60%, and thick bedding can also be used; after cleaning and disinfecting the ground, sprinkle a layer of lime, and then spread 1 kg (about 10 cm thick) of bedding per square meter. Add some clean hay every day, and remove the bedding once the temperature rises after spring.

Reasons why it is not suitable to vaccinate during peak egg production

Whether chickens lay eggs and how many eggs they lay are not only related to the quality of feeding and nutritional status, but also affected by seasons and climate. In spring and summer, especially from spring to early summer, chickens have a strong appetite, blood circulation is accelerated, and immune antibodies in their serum increase. This period is the time when chickens have the strongest production performance, the most eggs, the best physique, and the best spirit. If it is inoculated (intramuscularly) with Newcastle vaccine and other vaccines at this time, it will disrupt the normal physiological and biochemical laws of the chicken body, and some vaccines even neutralize or contradict the antibodies naturally produced by the chicken body. , It is extremely detrimental to the egg production and health of chickens. Vaccination is best done before or after the chickens start production.

In the production process of laying hens, some chicken farmers saw that their chicken flocks had entered the peak egg production period, fearing that the chickens would be infected with infectious diseases and affect egg production, so they vaccinated (intramuscularly) New Town vaccine, infectious bronchial tuberculosis vaccine, etc. Inflammation vaccine etc. As everyone knows, doing so will not only fail to achieve good results, but will also cause side effects such as decreased egg production, soft-shell eggs and affecting the health of the chicken.