สถาบันวิจัยวิทยาศาสตร์สาธารณสุข

National Institute of Health of Thailand

Authors : Sumontha Vadhanasin*, Aroon Bangtrakoononth**, and Taned Chidkrau*

 

Affiliations:        * Department of Food Science & Technology , Faculty of Science & Technology, Thammasat University, Klong Luang District , Pathumtnani 12121, Thailand

**WHO National Salmonellae and Shigellae Center, Department of Medical Sciences, Ministry of Public Health, Thailand
 
Source :            The 2nd Thammasat University Annual Conference
 
Language :        Thai with English abstract
 
Abstract :
 
The investigation for contamination of salmonellae in animal feeds was conducted in 149 samples from 12 manufacturers and 20 water samples from 7 farms. A total of 44 animal feedingstuffs (29.53%) was recorded as positive ,whereas 1 positive (5.0%) from   water sample. The contamination rates obtained from each manufacturer statistically significance (p<0.05). The investigation for sources of contamination, imported raw materials seemed to be the majority problem with the top-five listed as follows:- bonmeals (100%), canola feeds (50.0%) , cooked soybeans (44.44%) , sunflower feeds (40.0%) and ground chicken feather (37.50%). Among the total of 46 salmonellae isolates, ten species were identified with the top-three listed as Samonella Havana (58.70%), Samonella Tennessee (13.04%) and Samonella Senftenberg (8.70%) respectively, whereas the isolate from water sample identified as Samonella Worthington. Control for microorganisms at sources, especially hygienic handling with GMP. In addition, the Codex Task Force is now implementing for Code of Practice on Good Animal Feeding at farm level in order to circulate among member countries for approval before application to farmers to assure the safety for consumption of animal food products.