In the Northeast, because of the cold climate, the loss of fermentation bed heat seriously, there is no guarantee of a certain thickness, the fermentation bed running bad. Simply use the bed of sawdust produced by fermentation recommended minimum thickness of 80 cm, a blend of sawdust and other litter fermentation bed recommended 100 cm thick, in fact, the thickness of the litter is a critical factor to produce fermentation bed. Not because you have chosen a particular fermentation agent, can significantly reduce the fermentation bed thickness, of course, because of the limitations of existing piggery conditions had fermented to produce a 60 cm thick bed, this fermentation bed exist often need to add a lot of litter, it is more suitable for the southern region. It is absolutely impossible, particularly in the north northeast. Due to the winter pig widespread the problem is inadequate ventilation, Sherwin low humidity, the fermentation bed stocking density was adjusted to 1.8 to 2.0 square meters from 1.2 to 1.5 square meters / head / head is relatively close to the actual. Fermentation bed litter surface should be designed to be sunny, the radiant heat of the sun to speed up the the litter surface moisture evaporation, it is very important. The litter only maintain a certain spatial structure, the air gap make it easier to enter the litter, normal fermentation can be sustained. Fresh litter after a period of use of its physical properties will change litter easily compaction, the viscous permeability decline, this is a normal phenomenon, which is caused by the stampede of pigs and chemical decomposition. Will not change because of the use of some sort of leavening agent such biological processes. Thus turning litter must fermentation bed. Of course, pigs will also carry out some of the arch dug flip, but the the human flip is essential. This is a the fermentation bed can be run continuously key factor. By strengthening the ventilation of the pig do pig weatherization supplement litter, increase the thickness of the litter, lower stocking density to keep the litter dry. Details visit the official website: http://www.bjkylz.com technical support hotline :010 -62917860