نویسندگان
1 کارشناس ارشد، گروه گیاهپزشکی، پردیس ابوریحان، دانشگاه تهران، تهران
2 استادیار، گروه گیاهپزشکی، پردیس ابوریحان، دانشگاه تهران، تهران
3 استاد، گروه گیاهپزشکی، پردیس ابوریحان، دانشگاه تهران، تهران
4 بخش سم¬شناسی، اداره کنترل دارو و غذا، تهران
5 دانشکده داروسازی، دانشگاه علوم پزشکی تهران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Isolates of A. flavus obtained from different feeds such as corn, barley, wheat, cotton seed, bread waste, soybean, alfalfa, wheat bran, barley meal, canola meal, corn silage and beet pulp from nine dairy farms in Tehran province during 2004. Ability of sclerotiom production by isolates was tested. Results showed 62.9 percent of isolates produced sclerotiom on CzA medium and 68.5 percent of these isolated were aflatoxigenic. From pollution of feed by A. flavus point of view in dairy farms were between 20.37 - 3.7 percent. 16.67 percent of isolates obtained from beet pulp as the most contaminated feed. Alfalfa, canola meal and corn meal with medium 1.8 percent were of the least in every contaminated feeds. Analysis of milk samples by HPLC showed that the rate of AFM1 in samples varied and ranged from 0.0009 to 0.5269 ppb. Calibration regression coefficients determined 0.99 to 0.997 for these experiments and determined recovery was between 70.31 to 1.4.93 percent in these experiments.
کلیدواژهها [English]