국내에서 생산된 사료(2006-2007) 중 253점(배합사료 194, 단미사료 59)의 사료에서 오크라톡신의 오염도를 조사하였다. 단미사료 중 OTA오염도는 27%이었고 오염농도는 OTA 0.27-3.39 ppb 수준이었다. 배합사료에서 OTA 오염도가 76%로 나타났으며, 평균 0.21-13.64 ppb 수준의 검출농도로 분석되었다. 모든 사료 중 젖소사료(96%)> 닭사료(85%)> 돼지사료(79%) 순으로 OTA이 오염되어 있는 것으로 나타났으며, OTA평균오염농도는 고기소 사료(2.2 ppb)에서 가장 높았으며, 젖소사료(1.6 ppb), 박류(1.2 ppb)순으로 감소되는 것으로 나타났다.
Contamination of ochratoxin A (OTA) was studied in 194 compound feeds and 59 feed ingredients samples distributed in South KOREA in 2006 and 2007. The degree of OTA contamination in feed ingredients was 27%, and its detected levels were ranged from 0.27 to 3.39 ppb. Seventy six percent of compound feeds were contaminated with OTA at concentration between 0.21 and 13.64 ppb. The highest degree of OTA contamination was observed in compound feeds for dairy cattle (96%) followed by for poultry (85%) and swine (79%). Beef cattle exhibited the highest level of OTA contamination (2.2 ppb). Compound feeds for dairy cattle and feed ingredients for vegetable proteins showed relative lower level of contamination at 1.6 and 1.2 ppb, respectively.
