Negative-pressure ventilation type pig raising system based on biological fermenting bed

Abstract

The invention discloses a negative-pressure ventilation type pig raising system based on a microbial fermentation bed, comprising an enclosure, a roof and a pig raising yard, wherein the enclosure is built by construction materials; the roof is arranged on the top of the enclosure; and the pig raising yard is arranged in the enclosure. The enclosure is manufactured by hollow bricks and a double-layer wind tunnel hollow wall body is designed, the double-layer wind tunnel hollow wall body is communicated with an air intake channel at the groundsill, and a spray device is arranged at a wind tunnel port; the roof is designed by adopting roof heat insulation, such as multi-housing construction and the like, and the top part is provided with an exhaust fan and an air hole; and the pig raising yard is a microorganism fermenting bed pig raising yard which is a rectangular single-column yard, a cement passage is arranged at one side of the enclosure, and the rest of parts are the microorganism fermenting bed, and automatic feed boxes are arranged at the two ends of the cement passage. By adopting the pig raising system of the invention, zero emission of pig dung is realized in the true sense, the cleaning sanitary level of a pig field is improved all around, the feed utilization ratio is improved, the occurrence and spreading of diseases are effectively reduced, the pork quality is increased, the hog in-yard time is decreased, labor production ratio is improved, and the cost consumption of water, electricity and the like is reduced.

Description

Technical field [0001] The invention relates to a pig raising system, in particular to a pig raising system based on a microbial fermentation bed and adopting negative pressure ventilation for temperature adjustment. Background technique [0002] At present, the shortcomings of simple large-scale intensive pig raising have become more and more prominent, and many ecological pig raising methods have emerged, the most important of which is the pig pens with microbial fermentation beds. Fermentation bed pig raising is simply: the use of microbial bedding (sawdust, wood chips, bran powder, chaff, cottonseed hull powder, cotton stalk meal, coconut hull meal, peanut hull meal and other substances with high crude fiber content. One or several mixtures, plus compound microbial strains) to raise pigs. Pigs live on microbial fermentation litter that is 60-90 cm thick (thick in the south and thick in the north), and eat and drink on the litter. , The microbial fermentation in the cushion m...

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Problems solved by technology

[0003] However, traditional pig farms using microbial fermentation beds have their obvious disadvantages: 1. The ratio of microbial bedding in the microbial fermentation bed is not reasonable enough, which leads to slow decomposition of pig feces, breeding a large number of harmful bacteria, and affecting 2. The feed boxes in the pig pens are generally installed in a line near the fence, which makes the pigs living in it develop the habit of fixed-point excretion, which is not conducive to the decomposition of feces by the microbial fermentation bed, and When pigs are eating, they often eat the food box with their limbs, which pollutes the food in it; 3. The most important point is the ventilation problem. At present, the traditional pig house only uses fans and water curtains to cool down, which can only achieve indoor circulation, and the internal and external air cannot be effectively exchanged. , which makes it impossible to discharge the foul gas in the pig house, which greatly increases the incidence of pigs

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