What is the experience of learning pig raising technology in Denmark?

For protective feeding. In summer and autumn, planting cucurbits, big melons, sleeping melons, sunflowers and other plants outside the piggery can shade the sun and cool down, and promote the feeding technology in plastic greenhouses in winter, and regularly do insect repellent and immunization work.

2. Promote high-density breeding pigs. 0.8m2 pigpen in winter 1 fattening pig, summer 1 pigpen 1 fattening pig. High-density breeding pigs not only have few laps and low cost, but also fatten pigs compete for food. Sleep without a sports ground, love to gain weight quickly and reduce feeding expenses.

3. After the fattening pigs weigh more than 90 kg, the daily weight gain rate obviously slows down, and deposition is the main factor, so the more you feed them, the less cost-effective, and the fat increases and cannot be sold; Slaughtering under 90 kg, although the feed utilization rate is high, is uneconomical because of its small weight and low meat yield. Generally, 90 ~ 120 kg slaughter is most suitable for fattening pigs.

4. the variety should be excellent. First of all, we should choose varieties according to market demand. At present, it takes at least three yuan, preferably five yuan, to popularize multiple hybridization For example, the British PIC pig, five lines, has a fast growth rate, and can reach 1 10 kg in 58 days, with a lean meat rate of 66% and a feed-meat ratio of 2.8: 1.

5. Keep the fence simple. Don't make the pigsty too luxurious, just keep warm and ventilated.

6. Feed should be cheap. Feed accounts for 70-75% of the cost of raising pigs. Feed should change with the change of market price and season, not be static. If pigs eat less in hot summer, the feed should be more nutritious. Feed nutrition should be balanced to meet the growth needs.

7. Epidemic prevention should be strict. Pay attention to disinfection, not only to prevent foreign diseases, but also to prevent fecal pollution and spread diseases, and vaccinate according to immunization procedures.

8. Get ready to go out. For example, the weight of binary pig reaches 70 kg, the inner ternary 80-85 kg, the outer ternary 95 kg, and the British PIC pig 105 kg is the timely weight of slaughter. In addition, when the pig market price is high, the heavier the weight, the better; When the price is low, it's best to be light, so as to reduce feed consumption and cost.

9. The "backward feeding method" for raising pigs is a new type of pig raising method, which aims at the above shortcomings and combines the growth laws and characteristics of pigs. This method is in the stage from piglet to middle pig. That is, before 50-60 kg, concentrate with high energy and high protein is the main material, supplemented by necessary feed additives and a small amount of green feed. From the middle pig to the slaughter stage, the input of concentrated feed should be appropriately reduced, and the ratio of green feed to roughage should be increased: concentrated feed 60%, green feed 25%, roughage 15%. This method not only shortens the feeding cycle of pigs, but also makes full use of a large number of green feed and roughage resources, thus saving the amount of concentrated feed and greatly improving the economic benefits.

10. Feeding management: scientific feeding, reasonable feed matching according to different uses, ages and growth needs of pigs, strengthening management, improving hygiene and preventing diseases.