Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(3), 883-891 | DOI: 10.11118/actaun201664030883
Nutritive Value and Mycotoxin Contamination of Herbage in Mountain Locality Exposed to Renewed Cattle Grazing
- AgroResearch Rapotín Ltd., Výzkumníků 267, 788 13 Vikýřovice, Czech Republic
The aim of the study was to estimate the forage quality and mycotoxin contamination in the locality of Švýcárna (1304 m a.s.l.), where the cattle grazing after the long-term management cessation was introduced on the pasture area of 3.6 ha in 2012. The pasture was divided into two grazing plots: P1 (Nar) (dominance of Nardus stricta) and P2 (Des) (dominance of Deschampsia cespitosa). Samples of forage were taken in June, July, August and September 2014 and 2015 from five permanent plots situated in different places of locality. Samples were analysed on the content of basic nutrients and macro- and micro-elements. Further, the content of deoxynivalenol (DON), zearalenone (ZEA) and T-2/HT-2 toxin was determined using ELISA method. From June to September the mean content of crude fibre significantly (P < 0.05) increased (from 243.9 g.kg-1 DM to 331.7 g.kg-1 DM, respectively) and the content of crude protein significantly (P < 0.05) decreased (from 166.9 g.kg-1 DM to 89.2 g.kg-1 DM, respectively). Mean concentration of DON in P1 (Nar) was numerically higher than in P2 (Des), being 715 and 620.63 µg.kg-1, respectively (P < 0.05). Mean concentration of T-2/HT-2 toxin was 44.88 and 55.04 µg.kg-1 in P1 (Nar) and P2 (Des), respectively. The content of ZEA in P1 (Nar) of 54.65 µg.kg-1 was lower than in P2 (Des) being 78.72 µg.kg-1 (P < 0.05).
Keywords: suckler cows, pasture, forage, Fusarium mycotoxins, nature conservation
Grants and funding:
The work was supported by the institutional support for the long-term conceptual development of the research organisation, Ministry of Agriculture Decision No. RO1215 from 26 February 2015 and by the project INGO LG15025. The authors would like to thank the Administration of the Protected Landscape area Jeseníky and the Forests of the Czech Republic, state-owned enterprise for enabling this research in the Praděd National Natural Reserve.
Prepublished online: July 4, 2016; Published: July 1, 2016 Show citation
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