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 biological fermenting 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 biological fermentation bed and adopting negative pressure ventilation for temperature regulation. Background technique [0002] At present, the disadvantages of simple large-scale intensive pig raising have become increasingly prominent, and many ecological pig raising methods have also appeared thereupon, the most important of which is the pig raising shed using a biological fermentation bed. Fermentation bed pig raising simply: use microbial litter (sawdust, sawdust, bran powder, chaff, cottonseed hull powder, cotton stalk meal, coconut shell powder, peanut shell meal, etc.) One or several mixtures, plus complex microbial strains) to raise pigs. Pigs live on microbial fermented litter with a thickness of 60-90 cm (thin in the south and thick in the north). , Relying on the microbial fermentation in the litter and the adsorption of the litter itself, the ...

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Problems solved by technology

[0003] However, the traditional pig farms using biological fermentation beds have their obvious disadvantages: 1. The ratio of microbial bedding in the biological fermentation beds is not reasonable enough, which leads to slow decomposition of pig feces and the breeding of a large number of harmful bacteria. 2. The feed food 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 biological 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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