Investigation And Analysis Of The Influence Of Biosafety Level Of Broiler Farm In Some Areas Of Shandong On The Clinical Use

The domestic broiler production system could be classified into "company plus farmer" type among farmers and the "self construction and supporting" type among the companies.Differences could be observed in terms of location,the structure of the factory,the invesment for the stall construction and instrumens as well as the management for production and technology.Close relationship exists between vaccine and meat quality,leading the consequence of the difference in production effect,quality and strategy for disease controlling.Based on the observation of the difference between these two system in aspect of production control and drug forthputting as well as the biosecurity,finally the effect of both on clinical medication,could provide guideline for the development of our brolier industry.based on the survey of biosecurity and clinical medication in 407 brolier factories in Weifang,Binzhou,Rizhao,Linyi and Yantai and the parctical study in 341brolier factories in the same cities,significant difference could be seen in feeding system:The biosecurity level improve within the increasing size of the factory,the frequency and cost decrease as well.The clinical medication had an positive effect on production quality.The improvent of the biosecurity level could decrease the frequency for medication,shorten the medication period and save the cost for medicine.