Abstract
Nutritional value and fermentation characteristics of silage made from hybrid Rumex patientia L. x Rumex tianschanicus A.Los (Rumex OK 2) in different months during the year
Highlights
Production of conserved feeds is very important both for yearlong producing of feed rations and for creating of sufficient amount of substrate reserves for biogas stations for whole year (Juráček et al, 2010; Bíro et al, 2014)
Concentration of dry matter (DM) was determined by the gravimetric method, crude protein (CP) by the Kjeldahl‘s method, crude fat (CFa): extraction by light petroleum, crude fiber (CFi): gravimetrically as the residue remaining after extraction in acid and alkali reagent, acid detergent fiber (ADF): gravimetrically as the residue remaining after extraction in acid detergent solution, neutral detergent fiber (NDF): gravimetrically as the residue remaining after extraction in neutral detergent solution, acid detergent lignin (ADL): gravimetrically as the residue remaining upon ignition after 72% H2SO4 treatment, ash: ashing with the use of a muffle furnace by 550 °C and starch by polarimetry
The decrease of crude protein, crude fat, starch and ash concentration in Rumex OK 2 silage was detected from September to November as well as from April to May
Summary
Production of conserved feeds is very important both for yearlong producing of feed rations and for creating of sufficient amount of substrate reserves for biogas stations for whole year (Juráček et al, 2010; Bíro et al, 2014). Advantages of feed conservation are mainly in option of crop harvesting in time of ideal nutritional value and in possibilities of long-term storage of nutrients and energy. M. Gryshko National Botanical Garden of Ukraine (Kyiv) was from the 1980s hybridized new crop with name Rumex K-1, which contains relative high amount of crude protein, bud had not stabile production (Rakhmetov, 2018). Hybridization continues and in year 2001 was in Ukraine registered hybrid Rumex OK 2 × Rumex tianschanicus A.Los), which contains high amount of crude protein similar as Rumex K-1 and its production was stabilized.
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