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The fermentation bed technology is based on the control swine manure emissions and pollution of a farming methods, the basic concept of aquaculture waste \The project study on fermentation bacteria, inoculum size, litter and litter material, to provide a theoretical basis to further improve the fermentation bed technology. By mixed fermentation bacteria and comparison of commercial fermentation bacteria test results show that: the combination of homemade fermentation bacteria the Nakdong fermentation bacteria (1:1), fermentation and fermentation stability obvious economic benefits. Comparative trials of the fermentation bed farming and conventional farming, the results show that: the the fermentation bed farming incidence (diarrhea, cough, indigestion), respectively, a decrease of 19.7% and 25.1% (P lt; 0.05), decreased by more than half of the amount of labor savings 82.07% water consumption (P lt; 0.05), pig daily gain increased by 7.23% (P lt; 0.05), feed conversion ratio decreased to 0.12 (P lt; 0.05). Analysis showed that the fermentation characteristics of the fermentation bed: litter temperature rose sharply beginning 30 days later, the basic stability; moisture content of 6 d in a stable saturated; PH between 6.0-8.0; salinity content over time continuation of the cumulative increase in the litter; organic matter and nitrogen content of the cumulative amount of the amount of decomposition and transformation in a state of dynamic equilibrium after 6 d and 30 d, respectively. Through the analysis of organic litter profile different submerged fermentation bed system, the results show that: the the the litter profile level performance is very obvious, the sawdust litter using only surface 20 cm, mixed litter utilize 20-30 cm, its lower inorganic nitrogen content, moisture content, crude ash, total organic matter content, litter density, total salt content indicators with which significant differences (P lt; 0.05); Shop fill height of 50 cm of organic litter can undertake 2-3 batches of pig waste , for 4 months in accordance with the breeding cycle, and can be used for one year; tests showed that sawdust is the best organic litter, rice husk water holding capacity, moisture is less volatile, while easier to own decomposition and decay, but still can replace some sawdust material, ease the rural sawdust material shortages; organic litter breeding a batch of turning slightly drying after mixing better degradation effect. Two different useful life of the fermentation bed organic litter profile samples related to the physical, chemical and microbiological characteristics analysis, the results showed that: soluble salt content is much higher than two years of continuous use litter new litter of two months, was salinization severe; two litter Total porosity remained 70% difference is not obvious The new bedding Apart from bacteria in bedding underlying slightly below Chan bedding Cellulose decomposed bacteria with mold number of all higher than Chen litter (P lt; 0.05), the difference may be due to the because the pig no fresh feces supplement Chen litter sampling.
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