In summer, Shanxi white pigs are farmed to prevent heatstroke. Around the farm, trees or fast-growing vegetables must be planted to regulate the temperature. At temperatures above 30°C, sprinkler sprays are used every afternoon, one nozzle per square meter, once every half hour, two minutes each time. Farmers need to do a good job of feed cooperation to ensure sufficient nutrition. Shanxi White Pig is an omnivorous animal and has strong ability to feed and use pasture. In particular, the use of forage grass by local excellent pig breeds is quite outstanding. The nutrients in pasture can be fully digested and absorbed by pigs and have a high nutritional value. Experiments and production practices have shown that pigs fed with green feed all year round can receive the effect of “supplementing the essence with a small amount of blood and increasing efficiencyâ€. You can choose to plant library grass, chrysanthemum agglomeration and so on. Use as many green feeds as possible when feeding. The total amount of green fodder accounts for about 30% of the diet, 15-30 kg of pigs feed green feed 3-5 kg, and more than 30 kg of pigs feed green feed 6-10 kg. In areas where there is a shortage of concentrate feed or concentrated feed, breeding grass is a good way to grow pigs. In addition to the use of cultivated land for growing pigs, farmers can also make full use of unused land in the field, wasteland and other unused land to plant high-quality forage to develop white pig rearing.
In addition to the effort in feeding, the farmers also need to do a good job in ventilation and ventilation of the farm. Ventilation is one of the important measures for the heat dissipation of the pig house. In the summer season, the front and rear doors and windows of pig houses should be open to promote air circulation. In high-temperature and hot summer months, poorly ventilated intensive pig houses should be equipped with fans or fans to implement mechanical ventilation and eliminate house heat and air in order to prevent pigs from suffering heatstroke. There is also a need for drinking water, and the demand for water for summer pigs is large. It is very important to ensure that pigs have sufficient clean drinking water. The water requirement of pigs varies greatly depending on body weight, temperature, and feeding methods. In terms of body weight, pigs and pigs of more than 100 kilograms need more than 20 kilograms of water per head per day. In general, pigs drink about 2% of their body weight in summer. Drinking water should be fresh and clean. It is best to use an automatic drinker.
In order to increase feed rewards as soon as possible to meet the standard of commercial white pigs, scientific feeding should be carried out. The first is to schedule regular meals four times a day, starting at 7:00 in the morning and feeding once every 4 hours; the other is quantifying, weighing more than 20 kg. Pigs were fed at 4.5% of their body weight, and pigs within 20 kg were fed at 3.5% of their body weight. At the same time, the front-end open limit, that is, after 2 months of age, limits its activities and promotes its longevity, so as to ensure a higher rate of meat production.
To raise white pigs, farmers need to pay attention to the fact that summer temperatures are high and germs multiply rapidly. For this reason, the pens should be cleaned daily and the excrement should be transported in a timely manner and fermented. The inside and outside of the pig house should be regularly sterilized. Four walls should be sterilized with 20% lime milk. The ground should be sterilized with 1%-2% fire alkali solution. The drinking utensils shall be disinfected with alkaline water or 0.1% benzalkonium bromide solution and rinsed with boiling water. For the newly transferred pigs to be fattened, they must be dewormed once and take care of the diseases such as diarrhea, warts, and eczema.
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