Take the elevator, blow air conditioning, provide floor heating, and deliver food automatically ... Many people don't believe that pigs can have this kind of treatment. In Fantianzhu Village, Yiting Town, Yiwu City, Zhejiang Province, this six-story intelligent "apartment" covering an area of 10 mu is the "living area" of pigs. This year has just been completed, and the first batch of more than 3,800 sows has entered the breeding stage. By the midsummer of August, green pigs will be reborn, and the number of designed pigs can reach 28,000.
In fact, it is nothing new to raise pigs in factories from flat pig houses to three-dimensional buildings. With the increasing shortage of land, many parts of the country are studying it.
Yiting is a traditional agricultural town. As early as more than 30 years ago, there were a large number of local pig experts who earned a lot of money. Although the income is considerable, due to extensive management and overloaded aquaculture, this wealthy industry has brought serious pollution. By the end of 20 16, all pig farms, chicken farms and pearl ponds in the town have been shut down and banned, most of the land has been reclaimed, and the ponds have been cultivated with clean water.
Yiwu's population is highly concentrated. Together with local residents and migrant workers, the annual consumption of live pigs is as high as 900,000. How to ensure supply? On March 6, 20 16, the central kitchen project in Zheng Da, Yiwu with a total investment of about 2.44 billion yuan was officially signed. Among them, as a supporting project, Huatong, Zheng Da Group and Kangdi Group jointly invested 350 million yuan to set up Kangzheng Pig Industry Co., Ltd. to provide pork for the central kitchen.
Since it is nirvana, unlike many pig-raising projects, Kangzheng pig-raising industry, as a new enterprise, is naturally a high starting point. In the mode, three-dimensional breeding and multi-point layout are selected. No matter the design concept, planning level, equipment, technology and environmental protection, it is second to none in the country.
Therefore, before it was put into production, "Kangzheng pig industry" attracted much attention. The first focus is how to deal with the waste in this high-density farming method. How to control the prevention of diseases? How to supervise the breeding environment? Any link in this series of problems should not be sloppy, otherwise a little carelessness will cause heavy losses.
The reporter learned that pig houses are all leaking layers, and an automatic dung scraping system is adopted to automatically separate manure and urine at the source. The pig manure was transported to the vertical organic fertilizer fermentation tank through a closed pipeline by a high-pressure piston pump, and was fermented, decomposed and decomposed by efficient and multifunctional strains. After a week, it became organic fertilizer, and the whole system was closed, avoiding environmental pollution and odor drifting.
In addition to odor, in addition to timely treatment of feces and urine, management measures can be described as "land and air simultaneously." In the design of pigsty, the air inlets at both ends are planned and sealed to form a "patio" for discharge. In the "patio", a low-pressure atomizing layer at the bottom and a low-pressure spraying layer at the top are adopted, so that fine fog droplets are fully combined with odor molecules in the rising air at the bottom and adsorbed together, thus playing the role of washing and deodorizing.
In addition, there is also a sense of intelligence in temperature and humidity control. Equipment such as fan, wet curtain, louver sealing window and side wall air inlet window are controlled by environmental controller. In summer, longitudinal ventilation is used to make fresh air fall into the house after cooling through the water curtain system to keep the house cool. Vertical ventilation is adopted in winter. By controlling the size of the side wall air inlet window and ventilation duct, the falling of fresh air volume is controlled, and both heat preservation and air quality are taken into account. Gas heaters and floor heating are used to increase the temperature.
According to technicians, through the automatic environmental control system, fresh air can be replenished and polluted air can be eliminated in time, which not only provides a growing environment with clean air and suitable temperature for pigs, but also lays a solid foundation for intensive, large-scale and sustainable development of breeding.
How to feed so many pigs? In order to avoid the threat of epidemic disease to the biological safety of pig farms, the bulk feed is first sent to the feed tower outside the field, then transported to the transfer tower of each pig house by pneumatic force, then distributed to the small silos on each floor, and finally automatically transported to the troughs of each pen house. Only one person is needed to monitor the operation, which ensures the biological safety control of feed transportation.
Of course, from the perspective of one-time investment, the high infrastructure is by no means affordable for ordinary individuals, but the company's main due diligence shows that this "comprehensive account" is still cost-effective: First, this model greatly alleviates the contradiction of difficult land use and improves land use efficiency; Secondly, the service life of piggery can be extended to 50 years, and the infrastructure investment can be reduced on the premise of ensuring the same production capacity; Thirdly, intensive management can greatly improve the efficiency of feeding management, reduce the area of feces treatment and reduce the cost of operation and management; Finally, as long as the entrance of the building is well controlled, the biological safety of the whole building can be controlled, which is conducive to epidemic prevention and control.