Mycotoxins in dairy cows diet in south-west Bohemia

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F16%3A43891293" target="_blank" >RIV/60076658:12220/16:43891293 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Mycotoxins in dairy cows diet in south-west Bohemia

Original language description

The aim of the study was to determine the amount of the risk of contamination of feed for dairy cows by three most surveyed mycotoxins, also find and indicate the type of feed with the potentially highest risk. Three major groups of mycotoxins were studied, Zearalenone (ZEA) for its hyperoestrogenic effects, T- toxin and Deoxynivalenol (DON) for immunosuppressive effects, epitheliotoxicity and hepatotoxicity. A total of 226 feed samples were provided by farmers from South-west region of the Czech Republic. The material was divided into four groups: grain mixes (n = 49), corn silage (n = 65), grass silage (n = 86) and hay (n = 26). All of samples were positive for the monitored mycotoxins. The highest levels of mycotoxins were detected in DON: 1529 ?g/kg feed in grain mixes, 1329 ?g/kg feed in corn silage; T-2 was 968 ?g/kg feed in grain mixes, 932 ?g/kg feed in corn silage and 924 ?g/kg feed in grass silage. The highest rate of overlimit concentrations of all studied mycotoxins was detected in corn silage, where 46% of the samples contained overlimit amount of DON (limit 200 ?g/kg feed), 35% samples of T-2 (limit 200 ?g/kg feed) and 22% of ZEA (limit 100 ?g/kg feed). The observed levels of mycotoxins correspond to occurence of appropriate mycotoxins in other areas of Europe. Based on the results the estimation of theoretical intake of mycotoxins in daily ration can be done. With model ration (14 kg grass silage, 22 kg corn silage and 5 kg grain mixes) dairy cows can consume up to 48.027 mg of DON per day, what demonstrate risk of total daily amount of consumed mycotoxin, which may caused decrease in production and feed intake The maximum acceptable levels of mycotoxins contamination must be strict regarding at the material used in animal nutrition, especially in roughage. Regular measurements of mycotoxins levels and early elimination of contaminated feed leads to reduction of the negative impacts on the health and production of dairy cows.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

GH - Nutrition of farm animals

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Book of Abstracts - International Conference on Biotechnology and Welfare in Animal Science with a session on "7th Poultry Days"

ISBN

978-83-64758-38-6

ISSN

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e-ISSN

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Number of pages

1

Pages from-to

30

Publisher name

Publishing House of the University of Agriculture in Krakow

Place of publication

Krakow

Event location

Krakow

Event date

Jun 23, 2016

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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