General chicken production has a certain rule, that is, a few weeks after the start of production can reach the peak of egg production, after a sustained period of time, it began to slowly decline, this trend continues until the end of egg production. If laying hens change this trend, the egg production rate will suddenly drop. At this time, it is necessary to conduct a comprehensive inspection of the production situation in a timely manner. Through analysis, identify the reasons and take appropriate control measures. First, the reasons for the sudden drop in egg production (a) the impact of climate. (1) Seasonal changes: Especially in the northern China where the four seasons are distinct and the seasons change, the temperature difference changes greatly. If the broiler house insulation effect is not ideal, it will have a greater stress effect on the laying hens and cause a sudden drop in egg production. (2) Severe weather effects: If a flock of chickens suddenly suffers sudden and severe weather, such as heat waves, cold currents, storms, and snow. (b) Poor management of feeding. (1) Stop water or cut off the material: If the birds feed insufficiently or cut off water for a few days, the egg production will suddenly drop. (2) Inadequate nutrient content of feedstuffs, inadequate content of protein, vitamins, minerals, etc. in feeds, and improper mix proportions will cause a drop in egg production. (3) Stress effects: Abnormal sounds occur in the house. Small animals such as rats, cats, and birds break into the house, as well as the management personnel catching the chicken and cleaning the excrement, etc., can cause the flock to be suddenly frightened and cause stress response to the flock. (4) The light is out of control. A sudden power outage in the shed, shortened illumination time, weakened light intensity, lengthening of the illumination time, and sudden stop of the lighting switch, are not conducive to the normal production of chickens. (5) Inadequate ventilation: In mechanically ventilated houses, there is a prolonged power outage during hot summer days; in winter, ventilation is not performed for a long time to maintain the house temperature, and air pollution and harmful gas stimulation in the house will affect the chickens. Group of normal laying eggs. (c) Disease factors. Acute infectious diseases such as chicken Newcastle disease, infectious bronchitis, infectious laryngotracheitis and egg dropping syndrome all affect the normal egg production of chickens. In addition, vaccination during laying of laying hens and overdosing of drugs can cause toxic side effects, which can also result in decreased egg production in the flock. Second, preventive measures (a) reduce stress. When the season changes and the weather is abnormal, the temperature of the house and ventilation conditions should be adjusted in time. Adding a certain amount of vitamins to the feed can slow down the stress of the flock. (B) Scientific illumination. During the production of eggs, the scientific illumination system should be strictly followed to avoid irregular light. During the production of eggs, the illumination time is 14-16 hours per day. (c) Do not vaccinate during laying. The vaccination should be carried out during the brooding and breeding period of the chicken, and do not feed a large number of preventive drugs during the laying period. (d) regularly overhaul drinking water systems. Drinking water systems should be checked regularly and leaks or clogging should be promptly repaired. (five) rational use of feed. Safe and reliable full-price feeds with stable quality should be selected. A sufficient amount of protein, methionine, and appropriate vitamins, minerals such as phosphorus and sodium are required in the diet. At the same time to avoid sudden replacement of feed. If it must be replaced, a gradual change method should be adopted, that is, replace 1/3 first, then change 1/2, and then change 2/3 until all are replaced. The whole process is suitable for 4-5 days. (6) Do a good job of disinfection and hygiene work. Clean up and clean up in time to ensure that the chicken house is in good condition. Routine disinfection is performed 1-2 times a week, and if there is an epidemic, it should be disinfected 1-2 times a day. 0.1% Weidao disinfectant or other safe disinfectants can be used to disinfect the ceilings, walls, floors and utensils of chicken houses. (seven) scientific feeding. The number of fixed feeds should be fed on time. Do not suddenly reduce the feed or limit the feed. Adjust the amount of feed according to the season. (8) Pay attention to daily observation. Pay attention to the conditions of the birds such as feeding, droppings, feathers, cockscombs, and breathing. If any problems are found, timely treatment should be performed. (9) Do a good job in the management of temperature, humidity, ventilation and ventilation in the chicken house. Generally, the suitable temperature in the house is 18.3-23.9°C, and the relative humidity is controlled at 55%-65%. At the same time, the air in the house should be kept fresh. In the absence of detectors, it is advisable to enter the house without feeling glaring, tearing or smelly. (x) Reduce abnormal sound stimuli. Minimize abnormal sound stimulation to prevent cats, dogs, rats, birds, etc. from entering the house. China Agricultural Network Editor
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As food preservative, CAS no.24634-61-5, Chemical Formula C6H7KO2 the potassium salt of sorbic acid. Manufacturing process via chemical synthesis, sorbic acid and potassium hydroxide as raw materials.
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