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Study on Physic-chemical Properties and Microorganisms of Litter during Feeding Broilers in Deep-litter System

LI Juan1，SHI Xu-gen2，LI Ji-jin3，ZOU Guo-yuan3，WANG Hai-hong4   

  1.  (1.Periodical Press，Jiangxi Agricultural University，Nanchang 330045，China；2.College of Agronomy，Jiangxi Agricultural University，Nanchang 330045，China； 3.Institute of Plant Nutrition and Resources，Beijing Academy of Agricultural and Forestry Sciences，Beijing 100097，China；4.Institute of Animal Husbandry and Veterinary Medicine，Beijing Academy of Agricultural and Forestry Sciences，Beijing 100097，China)
  • Received:2013-06-07 Online:2014-02-20 Published:2014-03-27

Abstract: In order to study the change rule of physic-chemical properties and microorganisms of litter during feeding broilers，and provide scientific and effective farming methods and theoretical basis for deep-litter system,5 treatments were carried out and there were traditional litter （CK），70% traditional litter+30% corn straw （70% CK＋30% S），40% traditional litter+60% corn straw （40% CK＋60% S），10% traditional litter+90% corn straw （10% CK＋90% S），20% traditional litter+60% corn straw+20% zeolite （20% CK＋60% S + 20% Z）.The results showed that each treatment had same regulation，total nitrogen，total phosphorus，total potassium，pH and EC were found rising gradually during feeding broilers period.The count of total bacteria was reduced， but the E.coli and Salmonella were not significant changed.The key to promote fermentation of litter was that supply helpful microbial liquid within suitable ranges in deep-litter and increase the number of stirring litter during feeding broilers period.

Key words: deep-litter system; litter; physic-chemical properties; microorganisms