Track 2-2-1: Plant Diseases, Insect Pests and Weed Management
Description
Clean and healthy phytomass is a prerequisite for producing high-quality forage. Development of microscopic fungi may lead to the formation of mycotoxins (Opitz von Boberfeld et al., 2006), which are secondary metabolites produced especially by the fungi Aspergillus, Penicillium and Fusarium (Rodrigues and Naehrer, 2012). Mycotoxins are produced due to interactions and reactions of fungi to environmental conditions (Opitz von Boberfeld et al., 2002). Mycotoxins naturally have negative impacts upon livestock, causing alterations in hormonal functions, poor feed utilization, lower rates of body weight gain, and possibly death (Duarte et al., 2013).
Preventing the occurrence of mycotoxins in forage should begin in the field. These include the use of varieties or hybrids that are well adapted to the given growing area and that are resistant to fungal disease. Production and control of mycotoxins in silage are not well understood. General recommendations for limiting their occurrence include minimizing plant disease (Barnes et al., 2007). The aim of the study was to assess the incidence of deoxynivalenol and zearalenone in green matters and silages of perennial grass species, evaluate the difference among grass species and the impact of fertilization and sites on the occurrence of mycotoxins.
Included in
Influence of Grass Species on the Mycotoxins Content
Clean and healthy phytomass is a prerequisite for producing high-quality forage. Development of microscopic fungi may lead to the formation of mycotoxins (Opitz von Boberfeld et al., 2006), which are secondary metabolites produced especially by the fungi Aspergillus, Penicillium and Fusarium (Rodrigues and Naehrer, 2012). Mycotoxins are produced due to interactions and reactions of fungi to environmental conditions (Opitz von Boberfeld et al., 2002). Mycotoxins naturally have negative impacts upon livestock, causing alterations in hormonal functions, poor feed utilization, lower rates of body weight gain, and possibly death (Duarte et al., 2013).
Preventing the occurrence of mycotoxins in forage should begin in the field. These include the use of varieties or hybrids that are well adapted to the given growing area and that are resistant to fungal disease. Production and control of mycotoxins in silage are not well understood. General recommendations for limiting their occurrence include minimizing plant disease (Barnes et al., 2007). The aim of the study was to assess the incidence of deoxynivalenol and zearalenone in green matters and silages of perennial grass species, evaluate the difference among grass species and the impact of fertilization and sites on the occurrence of mycotoxins.
