How to solve the problem of ventilation and insulation of pig houses in winter?

In the construction of the pig house, the insulation facilities should be considered first, only the pig house with good thermal insulation performance will be warm in winter and cool in summer, which is energy-saving. The method of heat preservation can be adapted to local conditions, such as the use of baking lamps, electric heating plates, floor heating, ondols, hot blast stoves and so on. Among them, it is considered that the hot blast stove is more suitable, first, it has a wide range of adaptation, and all kinds of enclosures can be used.

Second, the hot blast stove can be installed outside the pig house, and the fresh hot air is blown into the pig house, which can effectively reduce the harmful gases and humidity in the pig house and maintain a good enclosure environment.

To increase the temperature of the house, the greater the temperature difference between the pig house and the outside world, the easier it is to ventilate. If the temperature of the house is not high, you can open the doors and windows on the leeward side in the morning when the weather is fine, and install more than 2 small exhaust fans at a position of more than 1 meter above the ground to regularly discharge the exhaust gas in the house in a well-closed pig house. Be careful not to use skylights for ventilation during the winter months, as that will allow hot air to escape.

Pigs are only afraid of the thief wind, that is, the convection of cold air, because the thief wind can reduce the temperature of the pig house by 10, which is very harmful to the pigs.

In winter, even if the temperature in the pig house is relatively high, the presence of thief wind will make the pigs feel unusually cold, which can lead to colds and other diseases. If there is a contradiction between ventilation and thermal insulation due to conditions, ventilation should be given priority to ensure that the harmful gases in the house do not exceed the standard. It should also be noted that dry manure should be used as much as possible, and it should not be used as much as possible to remove feces without water.

When there is no rain, you can properly ventilate, and then you still have to clean up the inside is the most important thing, if you keep warm, the pigs generally eat warmer food, and the room is not particularly cold.

In winter, ventilation can be carried out at noon when the temperature is high, and the use of fans is more targeted. It is necessary to strengthen management, clean up fecal sewage in a timely manner, keep the pig house clean and hygienic, ensure that there is no sewage accumulation, and control the humidity of the pig house. The feeding density can be adjusted appropriately.

In the north, there is a stove in the barn, and there is a long chimney sticking out.

You can build a pigsty, cover the pigsty with insulation cotton, and open a window.

Only for the situation in the old house that I saw, the pig barn was sealed with plastic tape to ventilate the area, and then poked a few holes in individual places for ventilation.

Winter is the most common cause of pig respiratory diseases, and farmers must do a good job of keeping the pig farm warm and preventing colds if they want to control the occurrence of pig respiratory diseases. In winter, there is a large temperature difference between indoor and outdoor pig houses. In this case, the pig farmer must not only ensure ventilation, but also maintain the temperature inside the pen.

The temperature outside is very low at night, so we should do a good job of cold protection and insulation, and during the day the temperature outside is relatively high, so we can ventilate the pigsty during the day. The ventilation of the pig house must follow the principle of "windless ventilation and shelter". To ventilate the pig house, one is to reduce the ammonia concentration in the pig house, the second is to reduce the humidity of the pig house, and the third is to remove the dust and dust in the pig house to provide a good growth environment for the pig house.

In the early and mid-stage management of winter pig production, pig farmers should not only do a good job of ventilation, but also do a good job of heat preservation. In winter, when there is no wind and the temperature rises, pig farmers can ventilate the pigsty. Every day from 10 a.m. to 3 p.m. is when the temperature is high.

During this time, the pigs can open the windows of the barn to ventilate. If the cold air comes and the temperature is very low, the pig farmer should properly ventilate the pigsty so that the skylight and bottom of the pigsty can be opened and ventilated.

In the later management of winter pig production, ventilation should be the mainstay. If pig farmers use mechanical ventilation equipment, it is recommended to use inverter fans for ventilation. If the conditions are limited, as long as there is no ice in the pigsty, the doors, windows, skylights and other vents in the pigsty can be opened, and the air quality in the pigsty must be ensured.

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1. Pig farmers should fix the pigsty. They should repair and replace the pigsty so that thieves don't get into it. 2. Pigs should be disinfected.

Pig utensils, pig clothes, and pig hats should be thoroughly cleaned and disinfected regularly. 3. Pig farmers should do a good job in the prevention of pig diseases and use pig vaccines according to the actual situation. 4. Pigs should control the drinking water of pigs.

In general, drinking water for pigs in winter should be two to three times the feed intake. Therefore, pigs should not be given too much drinking water.

You can install some ventilation equipment, or open the ventilation window of the pig house, which can ensure that the pig house is clean and tidy.

The best way is to use ventilation equipment directly, which can speed up the air flow in the injection room, and can also play a good role in ventilation, and will not cause the piglets to catch a cold.

A small opening can be made next to the barn, so that there is a ventilation effect, and it can also be ventilated through the exhaust system.

Just open a small opening, don't keep pouring cold air, about half an hour ventilation is the best.

1. You can buy some exhaust fans and place one at intervals, which can effectively help ventilate the pig house and have a good effect. If the ventilation effect is good, some fresh air can be brought in, the pig house will not feel stuffy, and they will grow healthier.

2. Natural ventilation should control the length of ventilation, ventilate for half an hour each time, and ventilate twice a day to replace a better environment for the pig house. If the time is too long, the temperature in the pig house will be greatly reduced, affecting the growth of pigs, the overly cold temperature is easy to make pigs cold, ventilation for half an hour, keep them warm in time, pigs will not be easily harmed.

Summary. Hello, more than happy to answer your questions!

Pig farm ventilation generally uses fans to achieve active ventilation, and side ventilation is commonly used.

Ventilation is carried out according to the condition of the pig house. It's best if it's the hottest time of the day, but if the smell is high, ventilate more frequently.

How to ensure the ventilation of the pig house?

Hello, more than happy to answer your questions! Pig farm ventilation generally uses fans to achieve active ventilation, and the usual ventilation is the side ventilation of the dust store. The Genpai bucket sedan chair is ventilated according to the situation of the pig house.

It's best to be late for a day when the temperature is at its highest, but if the smell is high, the frequency of ventilation should be higher.

Hope mine is helpful to you! Have a great day! 

<> close the windows of the pig house, then spread a layer of straw on the ground of the pig house, and hang a lamp with a large wattage above the pig house for heating after it is laid, or use an electric fan heater in the pig house; Or you can build a plastic greenhouse in the pig house, and set up hot air fans, infrared insulation lamps and other equipment.

First, the most economical way to heat the pig farm in winter

1. Close the window of the pig house, spread a layer of straw on the ground of the pig house, and then hang a lamp with a large wattage above the pig house for heating, or use an electric fan heater in the pig house.

2. Build a fire path in the corridor of the pigsty, and build an earthen stove at one end of the corridor. It is then heated by burning materials such as plant straw, sawdust, coal, etc.

3. When building a pig house, design a fire channel below the pig house, and raise the ground temperature to heat up by burning straw.

4. Lay water pipes in the cement floor of the pig house, and when heating is needed, heat the boiler water, and then pass the hot water into the water pipes to increase the ground temperature.

5. Build a plastic greenhouse in the pig house to reduce heat loss.

6. The heat of the boiler is blown into the pig house through the hot air blower, which can ensure that the temperature in the pig house is uniform, clean and hygienic.

7. For newborn piglets, use infrared insulation lamps, hang them in the insulation room or on the guard frame to heat the piglets, and the height of the insulation lamp can be adjusted at any time, and there is also the effect of preventing and controlling diseases.

Second, how to ventilate the pig farm in winter

1. Ventilation and warmth in the pig house in winter are two opposing jobs, ventilation will lead to a decrease in temperature, which may cause cold stress; The warmth needs to ensure that the pig house is closed and the indoor air circulation is not smooth.

2. The air standard in the pig house: ammonia is less than 20mg m, hydrogen sulfide is less than mg m, carbon dioxide is lower, the total number of bacteria is less than 40,000 m, dust is lower, the relative humidity of the air is 60-70%, the maximum is not more than 80%, and the ventilation volume is.

3. Ventilation method:

1) In winter, the pig house generally chooses to open the window for ventilation at about 11-12 o'clock in the morning on a sunny day, when the temperature is high, and there will be no loss of heat due to ventilation.

2) Generally, the air quality in the pig house is poor, the oxygen content is low, and when the pungent ammonia smell can be smelled, ventilation is carried out, and ventilation is stopped when the temperature drops significantly.

3) When opening the window for ventilation, from small to large, when the weather is bad, the window should be closed every 2-3 hours. When ventilating, the wind speed should be appropriate and should not be exceeded.

Pig house insulation, greenhouse with finned tube radiator can be used for heating and cooling two different roles, in the greenhouse is mainly used for heating. Heating is the need to have a heat source, the heat source is the party that provides heat, only with the heat supply, the radiator will dissipate heat.

Finned tube radiator.

In the finned tube radiator heating system for greenhouses, condensing water heaters and heat pumps are more common as heat sources, and the temperature provided by the heat source plays a great role in the heat dissipation effect of the radiator, because the heating of the radiator follows the principle of energy conservation. <>

Finned tube radiator.

Greenhouse finned tube radiator Each group of radiators is equipped with a temperature control valve, which exists to control the amount of heat dissipated, so the temperature control valve is an indispensable component in the heating system of the radiator, especially in this larger heating system.

Finned tube radiator.

In the cold winter, when the outside temperature is too low, in order to maintain normal body temperature, the pig body must enhance the oxidative decomposition of substances in the body and produce heat energy to supplement the loss of body heat. Generally speaking, when the temperature around the piglet is between 20 and 26, the metabolic consumption is low and the growth and development are normal. However, large pigs have lower metabolic consumption at 15 to 20 and normal fat gain.

Therefore, in the actual feeding management of pigs in winter, it is necessary to pay attention to the cold and thermal insulation measures of the pig house, increase the temperature in the house, reduce the consumption of pig metabolism, in the severe winter, not only does not affect the growth and fattening, but also can promote its growth and development and fattening. The specific measures are as follows:

First, the anti-thief wind is through the gap in the pen to enter the attack pig body. When the pig is asleep, it will cause colds, pneumonia and other diseases, so it is necessary to plug the leaks and gaps in the enclosure, and the windows or ventilation holes of the pig house should be more than meters from the ground.

Second, the application of plastic greenhouse simple enclosure covered with plastic film, can effectively increase the temperature of the pig house more than 7, reduce cold stress, reduce energy consumption.

3. Increase the feeding density of a pig is a "heat source", that is, the higher the density, the higher the temperature. Farrowing sows, each occupying 4 square meters, a litter in a pen; Empty pregnant sows, each occupying square meters, 4 square meters of captive 2 3 heads; 6 8-month-old gilts occupy square meters per head, and 7 8 pigs are kept in captivity for 4 square meters. The above enclosure includes eating.

Drinking water, resting place, in the rest place (lying area) should be used in the method of lying full circle, that is, in the lying area can be full of pigs, do not leave a gap, and to keep the lying area clean and dry.

Fourth, reduce the humidity of the pig houseThe greater the humidity of the pig house, the greater the heat lost by the pig body, and the more cold the pig feels. In order to prevent moisture, the circle should change the hay and dry soil frequently, and the fecal urine should be discharged regularly and fixedly, generally 4 or 5 times a day and night. Due to the increase in the number of pigs in the urine nest in winter, the humidity in the house increases.

Therefore, in addition to training pigs to "three-point positioning" (eating, urine, and sleeping in a fixed position), the feed should not be too thin when feeding.

Fifth, the bedding grass in the increase density at the same time the application of thick bedding grass circle, it is an effective way to prevent moisture insulation in winter, bedding grass (wheat straw, straw, sawdust) ** wide, used up bedding and pig manure together fermentation for organic fertilizer. The method of using the bedding circle is to put 20 30 cm of grass baffle in the pig lying area, and the grass baffle is best made of brick and cement; Place the standing bricks 5 cm under the ground, and the remaining 19 cm on the ground, use cement to build the bricks into a grass baffle with a height of 20 22 cm, and add the bedding to the lying area to prevent the bedding from scattering and pigs from pooping and peeing in the lying area.