1. Environmental regulation The growth and development of laying hens are affected by factors such as temperature, humidity, light, harmful gases, fright, noise, environmental sanitation, disinfection, mosquitoes and flies. The suitable temperature for laying hens in chicken battery cage is 18℃~25℃
2. Environmental regulation
The growth and development of laying hens are affected by factors such as temperature, humidity, light, harmful gases, fright, noise, environmental sanitation, disinfection, mosquitoes and flies.
The suitable temperature for laying hens is 18℃~25℃, and the egg production rate is best at 20℃. Adverse reactions during high temperature heat stress include pale cockscomb, anemia, reduced resistance, etc. The egg production rate drops by 10%-20%, and the average egg weight drops by 5%-10%. The decline in eggshell quality is reflected in thin-shelled eggs and broken eggs. , Soft-shelled eggs and non-shelled eggs increased, the mortality rate increased, and the damage to the fallopian tubes and ovaries was irreversibleof. Therefore, improving the ability of heat stress and preventing heat stress are the guarantee to ensure the economic benefits of laying hens in autumn. In the autumn, the temperature difference between day and night increases, and the invasion of cold air gradually increases, which will cause fluctuations in temperature. At this time, according to the weather changes, pay attention to keeping warm at night to avoid colds and respiratory diseases in chickens due to cold. Poorly ventilated chicken houses can cause insufficient oxygen.
Due to the high temperature and the large amount of water the chickens drink, the chicken manure becomes very thin, and it is easy to ferment to produce a lot of harmful gases such as ammonia and hydrogen sulfide, causing stress, which not only reduces the laying performance of the laying hens, but also easily triggers the respiratory tract of the chickens. disease. Among them, ammonia destroys the cilia and inner wall of the trachea, and viruses and E. coli enter the respiratory system, causing respiratory diseases.Especially these manufacturers buy Fully automatic poultry farming equipment for chicken
3. Feed preparation
The low egg production rate of hens is directly related to the feed, especially the content of vitamin A, vitamin D, pantothenic acid, niacin, folic acid, choline biotin, etc. in the feed. When the temperature is higher, the feed intake of laying hens is generally small. In general feed formulas, energy can meet their needs, and other ingredients such as vitamins will be insufficient, especially fat-soluble vitamins. Due to the influence of heat stress, laying hens need more vitamins, and the vitamins in the feed are affected by high temperature, the damage is intensified, and the content is reduced. Especially corn, its vitamin content is generally lower than that of fresh corn, and low-quality corn (such as mildew) is mostly marketed in autumn, which adds to the harm of poor quality of raw materials. The above factors caused the lack of fat-soluble vitamins required by the laying hens, which seriously affected the laying performance of the laying hens.
Chickens are naturally sensitive to mycotoxins, and low toxin content in the feed will cause a large number of deaths in the flock. Mycotoxins damage the body’s immune system and reduce the immune response. The effects on laying hens are concentrated in: decreased immunity, poor vaccine immunity; atrophy of ovaries and fallopian tubes, decreased egg production, and malformed eggs; reduced feed intake and production Decrease in performance, lower feed returns; lower hatchability of breeding eggs. The harm caused by different mycotoxins to laying hens is different. Among the known mycotoxins, ergot toxin, trichothecenes, fumonisin, and zearalenone have greater impact and toxicity on laying hens. , Aflatoxin, Ochratoxin, etc.
Due to heat stress, chicken intake is low. In order to ensure egg production, the energy level and nutrient concentration in the diet should be appropriately increased according to the chicken's feed intake, and the volume of the diet should be reduced to compensate for the nutritional intake caused by heat stress. Reduction in input.