A group of cute chicks
These chicks were born form egg shells, so cute.
Feeding chicken.
Many chickens are eating food.
poultry farming.
These chicken so beautiful, how did they do it?

Anti-breaking egg points for raising chickens in laying hen cages

In the process of laying chickens in laying hens, the key to judging the efficiency of the farmers is the quality and quantity of the eggs. The number of chickens in the layer battery cages is large, and the number of laying eggs in the chickens will also increase. In addition, the farmers should work hard on the quality of the laying hens to ensure the production of eggs. Reducing the rate of breaking eggs can improve the breeding efficiency. If the egg breaking rate is high, the laying hens are not useful in high yield, so the author will teach the farmers how to prevent the eggs from breaking.

 

1. Farmers should determine the size and type of laying hens based on the number and variety of laying hens. The spacing of the iron bars at the bottom of the cage is generally recommended to be 2.5 cm x 5 cm. It is appropriate to design the angle of the bottom of the cage. Small angles can not roll out the eggs in time. Large angles can easily cause the eggs to fall to the ground or break the impact of the eggs and break each other. The slope of the general cage bottom should be maintained at 7-8 degrees.

 

2. Ensure balanced nutrition of feed: The nutritional level of feed is directly related to the strength and hardness of eggshell, which is an important factor affecting the rate of breaking eggs. When formulating feed, it is necessary to formulate nutrient-rich feeds in stages, especially calcium, phosphorus, vitamin D3 and crude protein. Although most of the current feeds are called full-price feeds, caged chickens cannot get extra vitamins, so the chicken farm can supplement the chickens with multi-dimensional and minerals twice a week.

 

 

3. Increase the number of quail eggs and improve the quality of quail eggs: In order to prevent the egg from colliding with the egg and the egg being trampled at the bottom of the cage, it is necessary to quail eggs more than 3 times a day. The last quail egg arrangement is to reduce the time the eggs stay on the cage before turning off the lights at night, and to prevent the chickens from quailing.

 

4. Correct and reasonable lighting: When supplementing the light, it should be adjusted with the seasons. The total light time is 16 hours, at least not less than 14 hours.

 

5. Reasonable and effective calcium supplementation: After about 45 weeks of post-production, the shell particles should be supplemented separately at 4-5 pm to provide sufficient calcium source for eggshell formation.

 

6. Minimize stress: caged chickens are timid and shocked, and are very sensitive to changes in the surrounding environment. When the chickens are scared, they will increase the soft shell eggs and deformed eggs.

 

7. Prevention of disease occurrence: After the disease occurs, the egg production rate of the chickens will be significantly reduced, the eggshell quality will decrease, and the egg breaking rate will increase significantly. Therefore, poultry breeding equipment manufacturers suggest that it is necessary to strengthen the biosafety construction of chicken farms, formulate reasonable disinfection measures and immunization procedures, and regularly detect antibody levels and regularly administer drugs to prevent diseases.

 

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High-density chicken raising measures for laying hens

High-density farming is the method that most domestic farmers now adopt. High-density farming is also one of the important measures to improve production and reduce costs. However, if high-density breeding is carried out, if the farmer manages the environment of the chicken house, it will lead to the deterioration of the air in the house and the bad habits of the chickens. Therefore, chicken cage manufacturers recommend that farmers should take the following measures in order to improve the stocking density while still making the environmental conditions more suitable:

 

1. Density should be appropriate: Feeding density refers to the area of the cage bottom of each square chicken. On a certain chicken house ground, the higher the stocking density, the more chickens are raised. However, if the density is too large, the air in the chicken house is poor, and the activity and diet of the chicken are inconvenient. The growth rate and the egg production rate are both reduced, and the results are less favorable. Therefore, even at high density, the density should be appropriate and not too dense.

 

 

2. Place enough feeding troughs and sinks: Under high-density feeding conditions, each chicken must have the proper length of the trough and sink. And place these feeding troughs and sinks as evenly as possible in all parts of the house. In this way, although the density of the flock is high, each chicken can have a certain position and can eat and drink near the water to ensure that the water is not lacking, so that the production performance is not affected.

 

3. Strengthen ventilation: Under high-density feeding conditions, there are many chickens and therefore have a large amount of breathing. The relative humidity and the concentration of harmful gases in the house are also likely to rise. In the high temperature season, the temperature is also easy to rise. In order to maintain a good air condition in the house, ventilation equipment should be installed or installed, ventilation should be increased, and sufficient fresh air should be continuously exchanged.

 

4. Beak breaking: high density breeding of chickens can easily lead to altercation. In order to prevent the occurrence of pecking feathers, anal pecking, reduce the death of chicken, chicken picky feed to avoid waste, etc., usually in 6-10 days of age, the chicken beak up and down together to cut 1/3-1/2.

 

5. Reduce the light intensity: when the feeding density is high and the light is strong, it is easy to cause chicken restlessness. Even after beaking, anal pecking and other phenomena will still occur. In closed coop, the illumination of growing chickens should be 5-10 lux, and that of laying hens should be 10 lux. Ordinary chicken cage such as light is very strong, when the occurrence of anal pecking, in the guarantee of proper ventilation conditions, to cover the coop as dark as possible.

 

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Why are chickens lacking nutrition?

Maybe you often have such questions when raising chickens in poultry equipment for sale. Why do I raise chickens seriously? It is the same as raising chickens before. Why do my chickens sometimes suffer from lack of nutrition?
There are the following reasons regarding the lack of nutrition in chickens.

 

1, if you excessively pursue the growth rate of chicken, want to let the chicken grow faster, give the chicken some excessive nutrient feed, although this will achieve the effect, but often the chicken can not afford so much, it will
cause the immunity to decline. At the same time, chickens will also lack nutrition.

2, because the properties of the chicken is rather timid, any reaction will cause a stress reaction, stress will encroach on the nutrients in the chicken body, reducing the immunity of the flock. In this case, the demand for nutrients in
chickens will be higher.

3, due to improper storage of the mold caused by mildew, this will not only make the chicken lack of nutrition, but also cause diarrhea, which also has an impact on the growth and development of the chicken.

4, there are many factors that cause chicken immunosuppression, the most common are disease factors, drug factors, feed factors. In the case of immunosuppression, if the flock wants to be healthy, more nutrients are needed to protect it.

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The basic principle of prevention of chicken disease in laying hens

In the face of the new characteristics of disease occurrence, producers should establish a prevention-oriented epidemic prevention concept. Poultry equipment manufacturers believe that a series of strict epidemic prevention measures should be established to infiltrate the epidemic prevention into every production link, do a good job in daily comprehensive prevention and control, control the epidemic in the bud, and maximize the economic benefits of farming.


 
1. Implement the epidemic prevention policy that prevention is the priority and treatment is the priority.

We should abandon the traditional wrong idea of emphasis on breeding and neglect of prevention. In the process of pollution-free and standardized breeding, we should formulate various measures to give priority to prevention, so as to grasp the initiative of epidemic prevention and disease eradication and maintain the continuous, stable and healthy development of chicken production.

 

 

2. Strictly implement the sanitation system

From the chick into the chicken house, the chicken house of the disinfection to the process of feeding with chicken disinfection, from personnel disinfection to equipment disinfection, from the small environment of the chicken house to the chicken farm environment of the disinfection to do meticulous, thorough, leaving no dead space, reduce or cut off the way of transmission of pathogenic microorganisms infection.

 

3. Scientific immunization to enhance the body's ability to resist diseases

Immunization is an important means to prevent and control infectious diseases of livestock and poultry. Especially for some viral infectious diseases of chickens, there is no specific treatment and specific drugs. Immunization can be said to be the most effective way to control infectious diseases.In order to achieve a good immune effect, farms must establish scientific immune procedures, adopt reliable immune methods, use efficient vaccines and timely immunization in accordance with the specific conditions of local epidemics, characteristics of different infectious diseases, nature of vaccines, status of chickens, feeding and management, etc.Layer chicken cage manufacturer thinks, only so, ability produces strong immunity, prevent or put an end to the happening of contagion.

 

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Improve the disease resistance rate of chickens

1.Liver and kidney health care

Human liver and kidney are very important, and the liver and kidney of the chicken are also important, because liver and kidney function is related to detoxification and metabolism. Therefore, paying attention to the liver and kidney health care of the chickens can make the chickens more energetic and the blood more smooth in poultry cages for sale.

2. Intestinal health care

The intestine is the largest immune organ of the chicken. The intestinal tract is not good. The health of the chicken is definitely not guaranteed. Even if it is not ill, it will become sick due to absorption problems. Gut care can even be said to be one of the most important things to raise chickens.

 

 


3. Different seasons of health care

This is actually easier for chicken farmers to understand, and generally not to make mistakes. Summer and winter, the health care for the chickens is definitely not the same. Winter protection, summer heat stress, drinking water, light, diet, ventilation, additives, etc. need to make correct adjustments. In spring, summer, autumn and winter, chickens are also susceptible to different diseases. Chicken farmers should have targeted preventive health care.

4. Health care should start from the chicken

The health care of the chicks must not be ignored, because the health of the chicken needs to lay a good foundation from the chicken stage. This good foundation is mainly manifested in the improvement of immune organs, the enhancement of immunity, the normal development of the intestines and organs. Chicken farmers usually use microecological preparations and some immune-enhancing drugs and nutrients to care for the chicks.

5. Mycotoxins are the source of all diseases of chicken

This statement is not necessarily accurate, but the effect of mycotoxins on the health of the flock cannot be overstated. Mycotoxins, even if they do not directly damage the health of the flock, cause immunosuppression, making the flock more susceptible to disease. Therefore, adding mold remover to the feed is something that chicken farmers must not ignore. After all, the mildew of corn pea meal may not be visible to the naked eye.

 

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What is the best density of caged broilers in summer?

1. Temperature management

(1) The optimum temperature for adult flocks: between 18 and 23 degrees Celsius, high temperature is likely to cause heat stress.

(2) Look at the chicken temperature: pay attention to the humidity of the chicken house. Use the body temperature during the day, find ways to cool down, so that the flock can reach a comfortable body temperature; use the indicated temperature at night.

2. High temperature and heat stress

Heat stress index = relative humidity (RH%) + Fahrenheit temperature (OF) 160. 160 Reduced feed intake, increased drinking water, and decreased production performance. 165 Flocks begin to die, with severe damage to the lungs and cardiovascular system. 170 A large number of deaths. When the temperature exceeds 28 degrees Celsius, the mouth is gasping. The temperature exceeds 30 degrees Celsius, the mouth is gasping, the feeding is decreased, and the drinking water is increased. When the temperature exceeds 32 degrees Celsius, the chickens appear sputum, lack of oxygen, rapid increase in respiratory rate, snoring, strange screaming, and serious death.

3. Heat stress is the control measure:

Use cooling equipment: fan + wet curtain, first turn on the fan that can be used, and use the wind speed to achieve the appropriate somatosensory temperature to produce the air cooling effect.
Secondly, use wet curtains: the temperature is over 30 degrees Celsius, the humidity is lower than 75%; gradually use, the range is from small to large; first use the two sides of the wall, and finally use the gable wet curtain. Finally, the windshield is installed in the chicken house to reduce the cross-sectional area of the house and increase the wind speed.

4. Density is not grouped

The density of flocks in summer chicken cages should be reduced, and each group of 3 layers should be 24-25. The flocks should maintain a reasonable density and should be grouped as soon as possible. The first group should be 8-13 days old, and the second group should be 21-22 days old. Summer grouping should be in the morning or evening to reduce heat stress in the flock.

5. Feeding management

Feed feeding: adjust the feeding time and feed in a cooler time. In the morning or evening, avoid the high temperature period, do not concentrate on feeding before 6 pm; pay attention to the mildew and deterioration of the feed to prevent poisoning or intestinal diseases, daily net trough and light limit once.

6. Drinking water management

Fresh, clean drinking water is provided to ensure adequate water. Protect the health of the intestines. Water quality standard: Total bacterial count standard: less than 100 per ml; E. coli should be 0 per ml and no more than 50. The water line should be cleaned regularly.

During the feeding period, the height of the waterline is adjusted every two days according to the age of the flock, so that the chicken can be raised through the waterline. Check the water line nipple every day for water, and replace the water line or leaking water line nipples in time to avoid disease caused by lack of water in the chickens.

7. Chicken out of the bar management

When the outside temperature is higher than 26 degrees Celsius, the chickens will be slaughtered. After the chicken battery cages are loaded, the water should be cooled in time. When the water is pumped, it must be thoroughly penetrated. During the slaughtering of the slaughterhouse, it is necessary to timely water and cool down to prevent the heat of the chickens.

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Environmental control of broiler chicken house

Creating a living environment that is conducive to rapid growth and healthy development is a basic requirement for the healthy growth of broilers. What should be the environmental control of broiler houses?

temperature control

Chicks lack thermoregulatory capacity and must provide a suitable temperature. The temperature is too high, the intake is reduced, the drinking water is increased, and the growth is slow; if the temperature is too low, it is easy to cause respiratory diseases, indigestion, increase feed consumption, and the piles may cause the chicken to die. When the temperature is suitable, the chicks are evenly distributed and the activities are normal.

Humidity control

Humidity is the water content in the air, and proper humidity is closely related to the normal development of the chicken. Humidity is high, the house is damp, the bacteria breeds fast, the chicken is prone to disease; the humidity is small, the house is dry and dusty, and the chicken is prone to respiratory diseases. During the brooding period (the first 3 weeks), the relative humidity is controlled at 65% to 70%. During this period, the air is easy to dry due to the high temperature, and it is necessary to prevent the chicks from dehydrating due to low humidity.

Ventilation control

Ventilation and ventilation is to properly exclude the dirty air, pathogenic microorganisms, dust and moisture in the house, reduce their influence on the growth and development of the chicken, and exchange the fresh air outside to promote the rapid growth of the chicken. Ventilation can be done by natural ventilation and mechanical ventilation.

Lighting control

Control lighting is mainly to control the lighting time and light intensity. There are two characteristics of broiler illumination: 1 The illumination time should be as long as possible, which is the need to prolong the feeding time of the chicken, adapt to rapid growth, and shorten the growth cycle. 2 The light intensity should be as weak as possible, in order to reduce the excitement and movement of the chicken and improve the feed efficiency.

Density control

The brooding density refers to the number of chicks fed per square meter of the chicken battery cages . Appropriate stocking density can ensure the normal growth and development of chicks. The breeding density is too large, the chicks are crowded and piled up, the growth is slow, the development is not neat, the environmental pollution is aggravated, the disease spreads quickly, and the mortality rate is high. The density is too small, which is not conducive to heat preservation, resulting in waste of feeding area, energy, labor and so on. The feeding density of broilers should be flexibly controlled according to the specific conditions of the structure, ventilation and feeding conditions of the house.

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Three measures to cool chickens in summer

High temperature in summer is the biggest obstacle to raising chicken. Chickens do not have sweat glands, so they cannot evaporate their body's calories by evaporating sweat. Therefore, we should artificially cool the chickens. The following small series introduces you to several common farm cooling measures.

1. It is necessary to improve the internal and external environment of the chicken house and strengthen the function of cooling and heatstroke prevention.

Try to enhance the insulation capacity of the roof and walls, reduce the solar radiant heat entering the house; set up a sunshade net or awning outside the window to prevent the sun from directly illuminating the flock; keep the manure every day to reduce the feces in the house Heat; improve ventilation conditions, increase the area of vents and roof skylights; do a good job of environmental greening around the chicken house to reduce radiant heat, but also absorb carbon dioxide, reduce dust density, and purify the air inside and outside the house.

2. Take necessary heatstroke prevention measures.

Increasing the wind speed in the chicken house can take away the heat production of the chicken body. If the wind speed in the house can reach 1-1.5 meters per second, the heat stress of the chicken can be alleviated; after having a certain wind speed in the house, it can be sprayed in the house. Use water evaporation to reduce the temperature, but do not spray water in the chicken house at noon, and can not sprinkle water on the ground. High temperature and high humidity chickens are extremely easy to die. Conditional chicken farms can adopt longitudinal ventilation to install wet curtains. It can ensure the safety of the chickens in the summer; let the chicken drink the cool drinking water, the lower temperature drinking water can reduce the heat stress of the chicken, can use the cool groundwater, should put the water at the end of the water pipe in about 2 hours, Make the water temperature inside the water pipe low.

3. It is to use drugs to improve the ability of chickens to resist heat stress.

Vitamin C is the best medicine for heatstroke prevention and cooling. It is recommended to double the amount of summer use. The death rate is severely increased by vc. The sodium bicarbonate and vc can not be used at the same time. The effect can be reduced by using 0.2% of cheap baking soda. Mixing materials to alleviate a series of reactions caused by respiratory acidosis, but do not advocate too long-term use, so as to avoid the rise of intestinal pH, you can use some Chinese herbal medicine borneol and other compound preparations. In the treatment of heatstroke chickens, it is necessary to use vc and must add Zhengda or Pulsatilla powder or neomycin, colistin, lincomycin and other drugs effective against enteritis.
 
If you choose a reliable poultry equipment manufacturers, using fully automatic poultry farming equipment to raise chickens will help the chicken farms in summer to cool down and moisturize.

 

 

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How to raise chickens in autumn and winter

There are many windy weather in autumn and winter, what problems should be paid attention to by chicken farmers and how to do well? In the autumn and winter seasons, especially in winter, there are more windy weather. We all know that ventilation has a great impact on the success of raising chickens in winter. In many articles, chicken farmers have seen articles that should pay attention to ventilation in the winter, or how harmful gases will affect the health of the flock. Since it is all wind, the wind will definitely affect the ventilation of the house, and the impact is still great.

What is the danger of winter wind on the chicken house and poultry cage equipment?

The biggest hazard caused by windy weather in winter chicken houses is cold stress. Even people, in the cold winds of winter, can tremble with chills, let alone chickens that are easy to stress. If a strong wind blows, the chicken farmers are not well coped, the flocks are severely cold-stressed, and the respiratory tract is stimulated to cause various respiratory diseases. The immunity is reduced and various chicken diseases are easy to find. This is the core cause of the frequent outbreak of chicken disease after windy.

Chicken house measures to deal with windy diseases

Therefore, coping with the windy weather in autumn and winter is a technology that chicken farmers must master in winter. Fortunately, this is a matter of wind, there is a weather forecast that can be known in advance, and chicken farmers can prepare early. Knowing the fact that the wind is going to be strong next, the chicken farmers should be prepared according to the direction of their own chicken houses, the wind direction and the wind that will be blown, mainly to avoid letting the cold wind blow into the chicken when the windy weather arrives.

 

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Chicken Breeding Technology-Summer Chicken Management Points

During the summer season, the weather is hot, which often causes the chickens to eat less, grow slowly, reduce egg production, and even cause chickens to die. Based on the experience of integrated poultry farming equipment manufacturers, talk about your own opinions on the management of chicken management in summer.
 
1. Change the ambient temperature.

The optimum egg laying temperature for laying hens is 13-25 degrees, while the summer temperatures generally exceed 25 degrees. Therefore, changing the ambient temperature and creating a good microclimate for laying hens is a top priority for chicken farmers in summer. The specific method is to do a good job of greening in the spring, planting trees and vines around the house to clear the weeds around the house; before the summer season, build a pergola on the sunny side of the house; The exterior wall is painted white! Brush it in white to reduce heat absorption by dissolving 0.50 kg of salt with 46 kg of water, adding 40 kg of lime, 4.2 kg of white cement, adding 68 kg of water, stirring evenly, painting or spraying the roof and External wall, this method can reduce the temperature in the house by 1.5-2 degrees. In addition, we must pay attention to strengthen the ventilation of the house, convective heat dissipation, conditional installation of the wet curtain, and vertical ventilation to cool down.

2. Disinfect the chicken spray.

In the case of continuous high temperature, especially in the field where the number of chickens is concentrated! "It is best to install spray equipment in the chicken house. Generally, the two water pipes are 6 meters apart, and a nozzle is installed every 3 meters on the water pipe. When the weather is hot at noon. Spray several times, can reduce the temperature of 3-5 degrees ' (Note: to choose a highly effective, non-irritating, low-odor disinfectant, so as not to induce chicken respiratory disease).
 
3. Reduce the stocking density.

Increase the number of drinking fountains and feeding area. In the summer, it is necessary to clean up the flocks in time and eliminate sick, disabled, weak chickens and fake hens to reduce the stocking density and feeding costs.

4. Shearing and cooling.

Chickens do not have sweat glands, and the way to lower their body temperature is to dissipate heat by speeding up breathing, opening the mouth and wings. Therefore, at night, the feathers of the neck, back, wings, chest and abdomen, inner thighs, etc., which affect heat dissipation, can be cut off. The principle of shearing is as follows: the depth of the shearing is not to damage the skin and the large capillary tube does not flow after cutting. The long tail of the chicken tail and the long feather of the chicken wing should not be cut, and the cut in the early summer is less, and the cut in the summer.

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What do you need to pay attention to when raising chicken?

Now more and more people choose to raise chickens in poultry farming equipment, and think that raising chickens has great development, but what do you need to pay attention to when raising chickens?

 

First, blind introduction. The figure is cheap and ignores the quality of the chicks or simply pursues fashion. It does not consider the natural conditions of the region and its own breeding conditions, blindly pursuing new varieties and varieties. Some breed chickens in different batches, and some even buy chicks from infected areas, which brings difficulties to feeding management, and creates conditions for cross-infection of pathogens and induction of metabolic diseases.

Second, the addition of materials to work. The feed powder contains more nutrients such as amino acids, multivitamins and trace elements, while chickens have the habit of eating large grains. If the feed is too much, the chickens eat a large amount of large feed, resulting in an imbalance of nutrient intake. It affects the growth and production of chickens.

Third, suddenly refueling. When the feed needs to be replaced due to factors such as the growth stage of the chicken, the market price, etc., the feed is suddenly changed without a transition, which may cause the chicken's stress reaction, and some may even cause death.

Fourth, blind medication. Some chicken farmers and chicken farms do not add blind drugs when they are sick. Because the drugs are not symptomatic, they not only delay the disease, but also cause waste and increase the cost of raising chickens.

Fifth. When there are individual diseased chickens in the flock, they only pay attention to treatment, neglect isolation and prevention, and create conditions for the spread and epidemic of the disease.

Sixth, scorn disinfection. Individual chicken farms and chicken farmers cannot correctly understand the importance of disinfection, and only one-sided pursuit of reducing the cost of breeding, ignoring the disinfection work, leaving hidden dangers to the outbreak of the disease.

Seven, neglect to eliminate. Excessively value the survival rate. On the one hand, the weak chickens in the reserve flocks and the chickens with disabilities are not allowed to be eliminated. On the other hand, the old-age low-yielding hens are neglected, and the ratio of input to output is not paid attention to, which affects the overall economic benefits.

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How to disinfect the broiler house?

When carrying out broiler breeding work, no matter whether the broiler chickens we raised are sick or not, the pathogens will remain in the chicken house and the next batch of chickens will be contaminated. Therefore, we must carry out the empty chicken houses when carrying out the next batch of broiler breeding work. Thorough disinfection work makes the new batch of chickens only have a clean and hygienic living environment, so as to prevent the spread of various diseases. Here are some specific measures for the farmers to disinfect the broiler houses.

1. Clean the house

The house must be thoroughly cleaned and cleaned up quickly. The feeding equipment in the chicken house can be moved outside the house, and the chicken manure, feathers, coal ash and other pollutants in the chicken house can be thoroughly cleaned, and the roof, doors, windows and walls should be cleaned, so that there is no dust inside the house. The broiler cage manufacturers reminds the farmers here that when we carry out normal broiler farming, we also need to regularly clean and disinfect the environmental sanitation work in the chicken house.

2. Cleaning the house

The house should be thoroughly cleaned, and the floor, walls, doors and windows should be cleaned. The utensils and equipment in the house should be washed with disinfectant and then washed with water. There is no water on the ground of the chicken house, especially the dust on the roof of the chicken house. It should be cleaned from top to bottom. After the equipment and the ground are dry, it can be disinfected.


 
3. Overhaul work

For the equipment in the chicken house to be inspected, the equipment can at least ensure that a batch of equipment is needed, and the equipment that needs to be improved should be replaced in time, and the damaged bulbs should be completely replaced. It is best to use energy-saving light bulbs.

4. Governance environment

The environment outside the house is equally important. It is necessary to remove the debris from the outside drainage and remove the weeds around the house. Draining is usually done without affecting ventilation.
 
5. Chicken house disinfection

The disinfection of the house should be closed, airtight, spray disinfected, ventilated after 10 hours of disinfection, and the ventilation should be kept closed for 3-4 hours. All roof walls and net beds on the house should be disinfected with high-efficiency, non-corrosive disinfectants.

6. Fumigation

Close doors and windows and vents to check if the temperature and humidity meet the requirements. Solid formaldehyde and potassium permanganate fumigation are preferred. During the empty house disinfection, no one or animal enters the chicken cage. After fumigation, open the doors, windows and vents 24-36 hours, and fully ventilate.

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