Monitoring bovine-and ovine-derived components in ruminant animal feedstuffs and animal-derived food products in Guangxi

The objective of the present study was to monitor the bovine-and ovine-derived components in feedstuffs of ruminant animal in food derived from them,and to evaluate the bio-security situations of animal feed in Guangxi.During 2005-2009,974 group samples were collected from Nanning,Liuzhou,Fangchenggang,Beihai,Qinzhou and Guilin cities of Guangxi province.These samples were analyzed by real-time PCR and conventional PCR.The results showed that 12 groups of feed samples contained bovine-and ovine-derived components during 2005-2006.These feed products included commercial and locally made feeds which have been made by the animal feed production and sale enterprises and some animal raising farms.The qualified rate of feed was found to be 100% during 2007-2009.These results indicated that the bovine-and ovine-derived components in ruminant animal feedstuffs and animal-derived food products declined continu-ously from 2005 to 2009,and ruminant animal feedstuffs was developing with security production and utilization.