1. Precautions for raising pigs in winter: suitable growth temperature and water temperature of feeding
In winter, the temperature is low and the air is dry. Pigs' digestive diseases, respiratory diseases, infectious diseases, etc. are easy to occur. In order to ensure the healthy growth of pigs, the house should be disinfected regularly or irregularly. Pigs should be scientifically immunized, and commonly used drugs should be prepared in the pig farm so that the pigs can be isolated and treated early when they are sick.
The suitable temperature for pig growth is 14 ° C ~ 23 ° C, and its normal growth temperature should also be above 8 ° C. In order to ensure the normal growth and development of pigs, the best method is to use a greenhouse. In the cold winter, the pig house must seal the doors and windows, block the gaps, and prevent the "through the wind" and "thief style" from the rat holes, cracks, and gaps in the circle. The vents can be left at a height of more than 1 meter above the ground. Air is a kind of heat-conducting substance, and the more humid it is, the more thermally it is, and the faster the heat of the pig body in the circle is. Once the pigs are cold, the pigs will squeeze each other, be easily crushed or squeezed, and the disease will take advantage of it. Therefore, the pig house should be cleaned, paddling, and pay attention to training pigs to urinate and urinate to ensure that the pens are dry.
The feeding time should be stable in winter, and the ingredients should be carried out according to the different production performance and different growth stages of the pigs. If you need to refuel or change the feeding time, you should gradually transition and proceed slowly. Winter pigs eat mainly to protect the cold and increase weight. Pregnant sows also need to maintain the normal growth and development of the fetus, so it is necessary to increase the energy feed in the ingredients to enhance their ability to keep out the cold. When feeding mixed feed, it is best to feed raw food, even if a small amount of water is mixed, the water temperature should be around 25 °C.
The demand for water in pigs is very large. If there is no water in the pig house, the pigs will eat snow, ice and drink urine, which will inevitably cause digestive diseases or other diseases in pigs. Therefore, it is necessary to constantly supply warm and clean drinking water to pigs.
Second, winter pigs Note: pay attention to details
In autumn and winter, the temperature difference between day and night is large, and the climate turns cold. It is a season of high disease. Especially the wet and cold concrete floor not only greatly increases the incidence of pigs, but also reduces the feed remuneration of pigs.
We should establish the concept of effective temperature, we often ignore some factors that affect the effective temperature, such as: the impact of thief wind; wet cement floor impact.
Third, winter pigs Note: ventilation
The best way to reduce the humidity of the pig house and improve the air in the pig house is to ventilate the air. The most effective measure for ventilation is to open a vent on the ceiling. A large amount of moisture and bad gases in the house can be discharged as soon as possible without opening the door and window, and fresh air is exchanged. However, ventilation should be moderate, ventilation on sunny days and warm days, less ventilation on cloudy and cold days, and coordination between ventilation and insulation.
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Fourth, winter pigs Note: heat preservation
1. Inspection of the pig house: In the winter, the thief wind invades the pig house and attacks the pig body, which will cause diseases such as cold and pneumonia. Therefore, the pig house should be repaired.
2, pig house doors and windows hanging straw: the door and window of the pig house can be covered with straw before the winter or the entire door and window covered with plastic cloth to keep warm.
3, set up plastic shed: plastic shed has the advantages of less investment, high efficiency, convenient production. The scattered pigs of the farmers can generally be in accordance with the mode of the pens, according to local conditions, because they are simple. The plastic shed is transparent and can increase the temperature of about 5 °C, which is conducive to pig growth and weight gain.
4, let the pig sleep warm nest: dig a 50 cm deep plane pit, which is covered with a layer of soft grass, covered with straw on the top, let the piglets warm inside; can also take a grass shed, which is stacked with soft hay, Let the pigs drill inside to keep warm.
5, pig house plus insulation layer: closed pig house, the height of the ceiling is 1.8 ~ 2.0 meters from the ground, the saw on the shed plus rice husk and rice husk, the ground padding grass for the pig lying. A vent is left in every two places in the ceiling to discharge ammonia and moisture from the house.
6. Adding Chinese medicine: It can add traditional Chinese medicine for promoting blood stasis, spleen dampness, phlegm and dispelling cold in the feed, which can not only promote rapid fattening of pigs, but also resist cold and disease prevention. It can be used 10 grams of hawthorn, atractylodes, tangerine peel, betel nut, and divine song, 30 grams of malt, 60 grams of Chuanxiong, licorice, schizonepeta, windproof, and Bairen, 8 grams of Mutong, and a small amount of feed in the morning. Feed once a week.
7. Increasing the stocking density: In winter, the number of pigs in the general house can be increased by 1/3 to 1/2 than usual. The pigs should be placed in the dark, and the wine should be sprayed with low concentration of odor or odor. The pigs are then gregated and the breeder needs to observe for a few hours to prevent the pigs from fighting.
8, the pig house to keep dry: the greater the humidity of the pig house, the more the pig feels cold, and easily lead to pig skin disease, respiratory diseases, infectious diseases and parasitic diseases. In order to prevent moisture and rain, the house should be replaced with hay and loose soil. The pigs should be allowed to urinate and keep the pigs clean and dry, providing a comfortable living environment for pigs to promote winter fattening pigs. Growth and health.
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