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In this study, it was aimed to determine the levels of mycotoxin contamination in total mixed rations (TMR) of dairy cattle in Konya and the surrounding provinces where 13,3%  cattle production of Turkey. For this purpose a total of 74 ready-to-consume TMR samples from  dairy cattle farms in Konya, Afyonkarahisar, Karaman, Aksaray, Nigde, Antalya, Isparta and Burdur provinces were collected. A general screening in  dairy cattle feeds was performed in terms of mycotoxin presence and contamination levels. Samples were analyzed for Aflatoxin B 1 , Ochratoxin A, Zearalenone, T-2 Toxin, HT-2 toxin, Fumonisin and Deoxynivalenol levels by LC MS/MS multi-mycotoxin method. The levels of different mycotoxins in cattle feeds obtained from cattle farms, the proportion of positive samples and the percentage of presence in the feeds were compared in terms of maximum residue limit. It was concluded that the feeds were found partially contaminated with mycotoxins in terms of mycotoxin types and levels in the regions screened. The exceeded rates were found 30% for aflatoxin B 1 (≥5 ppb) and 3% for ochratoxin A (≥100 ppb) in TMR according to Official Gazette of the Republic of Turkey (2014/11). According to exceeded levels TMR and feedstuffs should be stored in more favorable conditions to avoid mycotoxin contamination.

The Presence of Mycotoxin in Total Mixed Rations of Dairy Cattle * Süt Sığırlarının Toplam Karışık Rasyonlarında Mikotoksin Varlığı