Mycotoxin contamination of diets for beef cattle finishing in feedlot
| Autor: | Alexandros Yiannikouris, Laura Franco Prados, Gustavo Rezende Siqueira, L. N. Kuritza, Vaughn Holder, James Pettigrew, Flávio Dutra de Resende, L. Custodio |
|---|---|
| Přispěvatelé: | Universidade Estadual Paulista (Unesp), Agencia Paulista Tecnol Agronegocios, Alltech, Alltech Inc, Pettigrew Res Serv Inc, Alltech Brasil |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Aflatoxin
animal structures feedlots Mycotoxin contamination technology industry and agriculture food and beverages aflatoxin Total mixed ration Beef cattle Biology ingredients SF1-1100 Animal culture chemistry.chemical_compound Animal science beef cattle fumonisin chemistry Fumonisin Feedlot Animal Science and Zoology Mycotoxin |
| Zdroj: | Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Revista Brasileira de Zootecnia, Vol 48 (2019) Revista Brasileira de Zootecnia, Volume: 48, Article number: e20190079, Published: 28 NOV 2019 Revista Brasileira de Zootecnia v.48 2019 Revista Brasileira de Zootecnia Sociedade Brasileira de Zootecnia (SBZ) instacron:SBZ |
| ISSN: | 1516-3598 |
| Popis: | Made available in DSpace on 2020-12-10T19:43:16Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-01. Added 1 bitstream(s) on 2021-07-15T15:06:45Z : No. of bitstreams: 1 S1516-35982019000100724.pdf: 672172 bytes, checksum: 20f2106ed168da3c9bc99afa1027ab88 (MD5) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Alltech The objective of this survey was to identify what mycotoxins were present in ingredients used in diets offered to beef cattle in feedlots and their concentrations. The survey covered 30 Brazilian feedlots located in the five major beef-producing states. Samples of total mixed ration (TMR) and ingredients were collected and analyzed for mycotoxin using ultra-performance liquid chromatography coupled to tandem mass spectrometry. Mycotoxin concentrations were further interpreted according to known species-specific sensitivities and normalized according to the principles of toxic equivalent factors (risk equivalent quantities - REQ) expressed in mu g kg(-1) of aflatoxin B1-equivalent. Forty percent of the visited feedlots had apparent fungi in TMR. However, only one feedlot (3%) used a mycotoxin adsorbent. On the other hand, diets with high contamination presented no apparent fungi. One hundred percent of TMR was contaminated. All samples presented at least one mycotoxin contamination, with 65.5% considered low contamination, 27.6% medium contamination, and 6.90% high contamination. The toxins identified in TMR were fumonisins (most frequently), trichothecenes A, trichothecenes B, fusaric acid, aflatoxins, and ergot (mean concentration values: 2,330, 104.3, 79.5, 105, 10.5, and 5.5 mu g kg(-1), respectively). According to the contamination of TMR samples per region, Mato Grosso do Sul state presented the highest contaminations. Peanut meal was the most contaminated ingredient. One hundred percent of TMR in Brazilian feedlot is contaminated. Fumonisins were the mycotoxin most frequent and at highest concentrations in TMR samples. Moreover, mycotoxin concentrations have a distinct pattern among ingredients, TMR, and feedlots (local). Univ Estadual Paulista, Dept Zootecn, Jaboticabal, SP, Brazil Agencia Paulista Tecnol Agronegocios, Colina, SP, Brazil Alltech, Ctr Anim Nutrigen & Appl Anim Nutr, Nicholasville, KY USA Alltech Inc, Nicholasville, KY USA Pettigrew Res Serv Inc, Champaign, IL USA Alltech Brasil, Araucaria, PR, Brazil Univ Estadual Paulista, Dept Zootecn, Jaboticabal, SP, Brazil FAPESP: 2015/21416-6 FAPESP: 2017/50339-5 FAPESP: 2018/20176-0 |
| Databáze: | OpenAIRE |
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