Fujian Journal of Agricultural Sciences ›› 2011, Vol. 26 ›› Issue (6): 1069-1075.

• Environmental Science • Previous Articles     Next Articles

Study on the Fermentation Index for the pig Litter in the Piggery of Microbial Fermentation Bed

SONG Ze-qiong1,2, LAN Jiang-lin1, LIU Bo1, LIN Juan2   

  1. 1. Agricultural Bioresource Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350003, China;
    2. College of Biological Science and Technology, Fuzhou University, Fuzhou,Fujian 350108, China
  • Received:2011-07-15 Revised:2011-11-21 Online:2011-12-15 Published:2011-12-15

Abstract: Using the method of "Salt gradient Suspension" to determine the suspensions ability of pig litter at different fermentation level in the microbial fermentation bed, as well as, based on the appearance of litter, the level degree of fermentation was established. Thirty samples taken from the piggery were classified into four groups. The first group was characterized with shallow degree of litter fermentation, the second group with medium degree, the third group with deep degree, the fourth group with profound. Combining the multiple linear regression, the mathematical equation of the fermentation index of pig litter was established, that was: Y=3.9932-0.0046X1+0.0531X2-0.0484X3-0.0083X4-0.0179 X5-0.0404X6(r=0.9420). The result indicated that the degree of fermentation of unknown litter were judged fast and accurately by utilizing the mathematical equation to determine the fermentation index of unknown pig litter.

Key words: microbial fermentation bed, pig litter, Salt gradient Suspension, fermentation index

CLC Number: 

  • S 828.4