Temperature has a very close relationship with growth and health of pigs. The suitable temperature for pig growth is 14°C~23°C. As winter approaches, the climate turns cold, and the temperature difference between day and night increases, which not only affects the growth of pigs, slows the weight gain of the pigs, and reduces the feed utilization rate, but also leads to a decline in the disease resistance of the organism and is prone to diseases. What's more, due to poor management, piglets, weak pigs, and sick pigs were frozen to death, which seriously affected the farming efficiency. Therefore, keeping pigs cold and warm in winter is particularly important.
Overhauling pig houses in winter and invading pigs with cold wind can cause diseases such as swine cold and pneumonia. Therefore, the piggery should be built on a high-altitude, dry and sunny place, and the gaps between the roof and the walls must be promptly repaired before entering the winter. Prevent blows into "dragon style" and "thief style" from mouse holes, cracks, and gaps in the circle. The window and ventilation holes of the pig house should be 1m to 1.5m above the ground to keep the temperature stable. Hanging grass curtains at the entrance to enhance warmth. Conditional fermentation beds can be used pigs, biological fermentation mattress material surface temperature in the winter can reach 17 °C ~ 20 °C, litter 10 cm below 30 °C ~ 40 °C, bottom layer of litter can reach 50 °C ~ 60 °C, this The temperature fully meets the growing needs of winter pigs.
There are many ways to increase the temperature of the pig house and increase the temperature of the pig house. One is to open the pig house covered with plastic film. It is best to cover the double-layer plastic film. Although the cost is higher than that of the single-layer plastic film, the heat preservation effect is better, and the pad is used for paddy straw, sawdust, etc., and the thickness is appropriately increased to about 20 cm, and the moist padding is promptly replaced. This approach is suitable for fat and non-lactating sows. The second is the implementation of hot stoves, heaters, coal stoves and other equipment for heating in closed pig breeding workshops. Third, newborn piglets, in the use of heating equipment to maintain the temperature of the delivery room at 22 °C ~ 25 °C, but also set up a special piglet insulation box, you can use the piglet electric heating plate, infrared light bulb or ordinary light bulbs to provide heat for the piglet incubator, reduce Diarrhea and other diseases caused by low temperatures (incubator temperature should be maintained in the range of 33 °C ~ 35 °C).
Increasing the rearing density will keep the dispersed pigs in close flocks and increase the stocking density. In winter, the stocking density will generally increase by about 40% compared with the summer. The heat generated by the pigs will increase. Naturally, the temperature can be increased, while the pigs sleep close to each other and can warm each other. , It can also increase the temperature throughout the pig house. The hordes should be carried out when it is dark. They should be sprayed with the wine or odor at a low concentration. The larvae should then be bred. The keeper must observe the herds and prevent the pigs from fighting.
Careful feeding is a timely adjustment of feed formulation, moderately improve the energy level of the feed, such as in the feed increased by 10% to 15% of corn, sorghum and other energy feed or add 2% to 3% of vegetable oil, and the amount of added with anti-stress , antioxidant vitamins, amino acids, and enzyme preparations. The second is to change the feeding method. The cold feed has a greater impact on the pigs in the winter. It should try to feed dry powder or use warm and hot water spices. The third is to appropriately increase the number of feedings. In winter, the pupa is short and long nights, and the pigs have a long period of fasting in the evening and increase the feeding at night to increase the daily feed intake. The fourth is to add in the feed to promote blood stasis, spleen dampness, cold wind dispelling the cold Chinese medicine, can not only promote the rapid fattening pigs, but also cold resistance. The prescriptions are as follows: Hawthorn, Divine Comedy, Rhizoma Chuanxiong, Poria, Nepeta, Wind Resistant, Gorgonine, Alfalfa, Bupleurum, Atractylodes, Areca, Licorice each weighing 20 grams, 30 grams of fried malt, and the amount of 0.2% to 0.5% at the end of the study. Feed twice a week. The fifth is to increase the temperature of drinking water. Conditionally, you can make the cold water into warm water and then let the pigs drink, or extract deep groundwater to feed the pigs.
Keep pigs in dry pigs prefer to live in warm and dry pighouses, afraid of cold and wet. Excessive humidity is conducive to the growth and reproduction of bacteria and can easily cause epidemics. Skin diseases, respiratory diseases, infectious diseases and parasitic diseases are common. Therefore, drying pigs is one of the main measures to ensure pig health. In order to prevent the pig house from being wet, we should do “seven thingsâ€: one should prevent leakage and snow leakage; second, work hard to change hay and loose soil; third, train pigs to defecate and urinate urine; and fourth, make the pig house’s ground high. Selling outside the surface is conducive to drainage, the pig house must face south and south, is conducive to wind and heat insulation, it is best to use three-soil soil, the ground does not dry to the tide; Fifth, we must regularly remove pig manure, pig urine, eliminating the pig house damp roots; six to use Absorbent absorbs moisture. When the humidity of the piggery is large, it can be used to absorb moisture from ash, coal ash, quicklime, charcoal and other adsorbents; seven must be scientifically ventilated, ventilation can take away moist gas, dry the ground, and can eliminate dirty Air, fresh air, is conducive to the growth of pigs. However, the winter and spring temperatures are low, and the ventilation volume must be controlled. The wind speed in the house should not exceed 0.1 to 0.2 meters per second. Increase the temperature before ventilating. In the absence of strong wind and good weather, it is also possible to open the south window slightly between 12 noon and 14 o'clock to facilitate ventilation.
Increase lighting area in pig houses Open pig houses must have a large open area in order to prepare plastic film covering in winter for easy lighting. Closed pig houses are to be reserved in the south wall and the roof to prepare for the installation of glass in winter.
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