Calculating the Energy Value Meadow Hay - NEL, Based Solely on the NDF and Compared with Commonly Used Calculations NEL

Alois Kodeš, Zdenek Mudřík, Boris Hučko, Vladimír Plachý

Abstract


DOI: 10.15414/afz.2015.18.04.95–98

Received 9. July 2015 ǀ Accepted 28. August 2015 ǀ Available online 7. December 2015

In our study was compare the accuracy of prediction of the energy value NEL of meadow hay. Predictive equations calculated
from the results of our monitoring is NEL = 12.9085 - 0.1276x, where x = the NDF. Values of prediction equation which we
calculated is comparable with the values indicated by the other authors. The great advantage of our prediction equation is
the unpretentiousness of its calculation. Own calculation of NEL requires more analytically determined values. The number
of analysis needed to calculate predictive equations and the time needed for all analysis is in our determination in the
prediction of NEL, big advantage. It is further enhanced by lower finance costs.
Keywords: meadow hay, prediction of the energy, NEL, NDF

References
HARRIS B. JR. (1993) Nonstructural and structural carbohydrates in dairy cattle rations. [Online] University of Florida, IFAS Extension. Available at http://ufdc.ufl.edu/UF00008566/00001/1j. [Accessed: 2015-06-10].
ISHLER V., HEINRICHS J. and VARGA G. (1996) From feed to milk: Understanding rumen fiction. [Online] Penn State College of Agricultural Sciences. Available at: http://extension.psu.edu/animals/dairy/nutrition/nutrition-and-feeding/rumen-function/from-feed-to-milk-understanding-rumen-function. [Accessed: 2015-06-10].
ISHLER, V. and VARGA, G. (2007) Carbohydrate nutrition for lactating dairy cattle: Information and tools to assist in managing dairy nutrition, including resources on forages, pasture, heifers, and calves. [Online] Penn State College of Agricultural Sciences. Available at: http://www.das.psu.edu/research-extension/dairy/nutrition/pdf/chonutrition.pdf. [Accessed: 2015-06-10].
LINN J. G. and MARTIN N. P., (1999) Forage Quality Test and Interpretations. In: Mendenhall, K. (ed.) 2009. The organic dairy handbook: a comprehensive guide for the transition and beyond. Cobleskill, NY: Northeast Organic Farming Association of New York. Available at: http://www.nofany.org/organic-farming/technical-assistance/organic-dairy . [Accessed: 2015-07-12].
MÍKA V. et al. (1998) Forage quality. Praha: UZPI (in Czech).
MUDŘÍK, Z. et al. (2006) Foundations of modern cattle nutrition. Prague: CZU (in Czech).
NRC (2001) Nutrient requirements of dairy cattle: Nutrient requirements of domestic animals. 7th revised edition. Washington: National Reserach Council. NOCEK, J. E. and RUSSELL, J. B. (1988) Protein and Energy as an Integrated System. Relationship of Ruminal Protein and Carbohydrate Availability to Microbial Synthesis and Milk Production. In J. Dairy Sci., vol. 71, pp. 2070-2107. DOI: http://dx.doi.org/10.3168/jds.S0022-0302(88)79782-9
POND, W. G. et al. (2005) Basic animal nutrition and feeding. 5th edition. New York: Wiley.
SOMMER, A. et al. (1994) Nutrient requirements and nutritive value tables for ruminants. Pohořelice: VÚVZ (in Czech).
UNDERSANDER, D. et al. (1993) Forage analyses procedures. Madison: National Forage Testing Association.
VAN SOEST, P. J., ROBERTSON, J.B. and LEWIS, B.A. (1991) Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition. In J. Dairy Sci, vol. 74: 35 pp. 83-3597. DOI:http://dx.doi.org/10.3168/jds.S0022-0302(91)78551-2
VENCL, B. et al. (1991) The new evaluation systems for cattle feeds. Praha: AZV ČSFR (in Czech).
WEISS, P. H. (2010) Refining the net energy systém WCDS. In Advances in Dairy Technology, vol. 22, pp. 191-202.
ZEMAN, L. et al.(1995). Catalog of feeds (tables of feeds nutritional values). Pohořelice: VUVZ (in Czech)


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