How to design the sow pen is reasonable, and the standard size and design method are common.

The number of sows raised in large circle is 200. empty sows can be mixed with pregnant sows, feeding area, rest area, activity area and separation area can be set up, plastic net or sunshade net should be used in summer, plastic film should be covered in winter, one plastic sprinkler should be installed in each column, sow single circle size is 2.5x4 meters, single circle feeding can be 6-8 square meters, backup sows weigh 113kg-116kg The area of each head is 1.4 square meters.

I. Design principles

The utility model has the advantages of low cost, easy to use, no stagnant water on the floor, no skidding, smooth walls and easy cleaning and disinfection, and the roof of the pig house needs to be insulated.

Second, design scale

1. According to one's own economic conditions and management ability, according to the feeding area of one sow of 2.5 square meters, one enclosure can be built when the feeding volume is less than 200, and 200 sows can be used as one enclosure, that is, a sow barn of 500 square meters, and a 500 square meter enclosure can breed 200 sows.

2. It can also be divided into 1 lap per 125 square meters, and 50 sows can be fed, so 500 square meters can also be divided into 4 units, each enclosure uses a feeder, and the delivery room needs to be built separately.

3. Feeding methods

The main results are as follows: 1. During the period of feeding in large circle, 200 sows are raised in large circle, which can be mixed with pregnant sows. Four single machines are used as a group, and a separation system is set up. The large circle is provided with feeding area, rest area, activity area and separation area. At the same time, there is an estrus identification area, and a boar is set up in the estrus identification area, and the estrus identification system is installed in the middle.

2. If the sows are fed in a small circle, and the pregnant sows are separated from the pregnant sows, every 50 pigs are divided into one enclosure, and the separation system is not used. Usually, the color spraying device of the manual observation system is used to identify the status of the sows. For example, red is sprayed on the back of pigs that are pregnant for 105 days, yellow for estrus, blue for 1 day without food, and the estrus identification system is set next to the empty sow house. The circle is equipped with an automatic drinking fountain of 15cm and 40cm respectively.

Fourth, the way of removing feces.

Sows need to be trained to defecate at a fixed point after transfer, and the feces are cleared from the manure removal mouth to the dung truck at a regular time every day, there is no need to pile up under the manure cleaning mouth to pollute the wall and the ground, and the urine and sewage flow from the floor drain into the sewer with a cover on the front of the house. the sewer is provided with a sedimentation tank at the first end of each house, and the supernatant flows into the main sewage pipe of the pig farm to be discharged to the sewage tank, which is discharged after strict oxygen, aerobic and sand care or constructed wetlands.

Fifth, fence wall design

The brick concrete grid wall with the south fence wall of 24, the long fence wall of the rear corridor with iron railing, the north wall with windows and floor windows, and the brick cement wall with 12 adjacent columns touch the solid wall to avoid the spread of pig contact disease between the two adjacent columns.

VI. Environmental control measures

1. The south open part of the pig house in summer can be sealed with plastic net or sunshade net, which can not only be ventilated but also prevent mosquitoes and flies. In winter, it is necessary to cover it with plastic film for heat preservation, including the north and south grille walls, and the dirty air in the house is discharged through the vents of the roof.

2. The pavilion effect can be used in summer and Greenhouse Effect in winter, which can basically meet the ambient temperature requirements of fattening pigs. when the temperature is too high at noon in summer, it is necessary to pull a plastic pipe above the fence house and install a plastic sprinkler in each column to spray and cool down.

3, but in the stage of litter production and piglet care, do not spray to cool down, avoid dampness in piggery, piglet diarrhea, upper window and floor window on the north wall of piggery, can be sealed with plastic net in summer, and can be insulated with plastic film seal in winter.

7. Single ring size of sows

The main results are as follows: 1. The size of a single circle of sows is 2.5x4 meters, and the size of a single circle is 6-8 square meters. The weight of reserve sows is 113kg-116kg, each sow area is 1.4m2, each column can be designed according to raising 4-12 sows, each empty sow area is 1.67m2, each parturition sow area is 1.58m2, and each parturition sow area is 1.67m2.

2. Sows are kept in captivity alone, with 2.1 meters in length and 0.8 meters in width, 2.2 meters in length, 0.6-1 meters in width and 0.9-1.0 meters in height for sows, and 2.1 meters in length, 0.6-0.8 meters in width and 0.8-1.2 meters in height for pregnant sows.