Nutritional value of hybrid Rumex patientia L. x Rumex tianschanicus A.Los (Rumex OK 2) in different periods

Abstract

Article Details: Received: 2018-07-31 | Accepted: 2018-10-18 | Available online: 2018-10-31 https://doi.org/10.15414/afz.2018.21.04.197-200 The aim of this study was to determine the nutritive value of hybrid Rumex patientia L. x Rumex tianschanicus A.Los (Rumex OK 2). Rumex OK 2 can be considered as a technical or energetic plant for renewable production of biomass or as a feed as source of nutrients for animals. In this study two harvestings were planned, firs cut was realised in June (growth from March to June) and second cut was realised in November (growth from July to November). Samples of Rumex OK 2 plants were collected in the 20 th day of the month in March to June and in September to November. Concentration of nutrients were detected according to Regulation no. 2145/2004-100. Fresh Rumex OK 2 samples from March 7.42%, April 8.71% and September 4.89% had very low concentration of dry matter (DM). On the other hand samples from March, April, September and October had high concentration of crude protein in range from 31.42 to 24.54% of DM. From start of growth in spring to time of firs cut in June increased both concentration of dry matter from 7.42 to 56.62% and concentration of crude fibre from 14.86 to 47.38% of DM. Concentration of fat in Rumex OK 2 is low and similar to that of maize plant or alfalfa, whereas concentration of nitrogen free extract in Rumex OK 2 plant is similar only to alfalfa. Results of this article bring compact view over nutritional characteristic of Rumex OK 2, which can be according to gained results about nutritional value used as a source of nutrients in animal nutrition, or as a source of renewable biomass for bioenergy production. Keywords: Rumex OK 2, months, nutrients, fiber complex References BOCKHOLT, R. and KANNEWURF, B. (2001) Rumex obtusifolius in peatbog at Mecklenburg-Vorpommern (widening, forage quality, ensilability, force out by extensiveness). In 45. Jahrestagung AGF, 23.–25. 8. 2001, Gumpenstein, pp. 49–51. (in German). DERRICK, R.W. et al. (1993) Intake, by sheep, and digestibility of chickweed, dandelion, dock, ribwort and spurrey, compared with perennial ryegrass. The Journal of Agricultural Science, vol. 120, no. 1, pp. 51–61. Doi: https://doi.org/10.1017/S0021859600073585 GALIK, B. et al. (2016) Nutritional characteristics of feeds. Nitra: Slovak University of Agriculture in Nitra (in Slovak). HEJDUK, S. and DOLEŽAL, P. (2004) Nutritive value of broadleaved dock (Rumex obtusifolius L.) and its effect on the quality of grass silages. Czech Journal of Animal Science, vol. 49, no. 4, pp. 144–450. Available from: http://www.agriculturejournals.cz/publicFiles/53197.pdf HRIC, P. et al. (2018) The changes of the assimilation pigments content of turf Festuca spp. leaves after application of different nutrition forms. Acta Fytotechnica et Zootechnica, vol. 21, no. 1, pp. 6–10. Doi: https://doi.org/10.15414/afz.2018.21.01.06-10 JURACEK, M. et al. (2012) Nutritional value and ensilability if maize hybrids. Nitra: Slovak University of Agriculture in Nitra (in Slovak). JURACEK, M. et al. (2011) Laboratory protocols. In GALIK et al. (2011) Biotechnology and animal food quality – Part II. Animal food quality. Nitra: Slovak University of Agriculture in Nitra, pp. 122–133. KOVAR, P. et al. (2017) The influence of various dose of nitrogen on botanical composition of turfs on the basis of drought-tolerant fescues cultivated under conditions without irrigation. In Journal of Central European Agriculture, vol. 18, no. 2, pp. 494–514. Doi: https://doi.org//10.5513/JCEA01/18.2.1922 PETŘIKOVA, V. (2012) Forage plant – Rumex OK 2. [Online]. Retrieved 2018-07-31 from: https://biom.cz/cz/odborneclanky/krmna-plodina-rumex-ok-2 (in Czech). PETRIKOVIC, P. et al. (2000) Nutritional value of feeds. Nitra: VUŽV (in Slovak). RAKHMETOV, D. (2018) Non-traditional plant species for bioenergetics. Nitra: Slovak University of Agriculture in Nitra, 103 p. Doi: https://doi.org/10.15414/2018.fe-9788055218557 (in Russian). REGULATION of the Ministry of Agriculture of the Slovak republic no. 2145/2004-100 about sampling of feeds, laboratory testing and evaluation of feeds. ROLINEC, M. et al. (2018a) Energy content of hybrid Rumex patientia L. × Rumex tianschanicus A.Los. (Rumex OK 2) samples from autumn months. Acta Fytotechnica et Zootechnica, vol. 21, no. 1, pp. 20–23. Doi: https://doi.org/10.15414/afz.2018.21.01.20-23 ROLINEC, M. et al. (2018b) Energy content of hybrid Rumex patientia L. × Rumex tianschanicus A.Los (Rumex OK 2) samples from spring months and June. Acta Fytotechnica et Zootechnica, vol. 21, no. 2, pp. 60–62. Doi: https://doi.org/10.15414/afz.2018.21.02.60-62 SIMKO, M. et al. (2010) Saccharides in ruminants nutrition. Nitra: Slovak University of Agriculture in Nitra (in Slovak) TRINACTÝ, J. (2013) Evaluation of feeds for dairy cows. Pohořelice: AgroDigest (in Czech). USŤAK, S. (2007) Cultivation and use of fodder sorrel in condition of Czech Republic. Prague: Crop Research Institute. Available from: http://www.vurv.cz/files/Publications/ISBN978- 80-87011-26-3.pdf (in Czech).